java 澶氭€佷駭鐢熺殑鐤戦棶</h1> <p>scorpio灝忚潕 — Tue, 10 Jul 2012 09:27:00 GMT</p> 闃呰鍏ㄦ枃<br><br><div align="right"><a style="text-decoration:none;" href="http://www.aygfsteel.com/roymoro/" target="_blank">scorpio灝忚潕</a> 2012-07-10 17:27 <a href="http://www.aygfsteel.com/roymoro/archive/2012/07/10/382729.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]> </article> <article> <h1>Hadoop 闆嗙兢閰嶇疆榪囩▼鍙?qiáng)闂鎬葷粨</h1> <p>scorpio灝忚潕 — Mon, 02 Jan 2012 09:41:00 GMT</p> <span style="font-size: 22pt">杞澆璇鋒敞鏄庯細(xì) <table id="TableEdit" class="TableEdit" width="100%"> <tbody> <tr> <td><a id="Editor_Edit_hlEntryLink" title="view: Hadoop 瀹炶返鍏ラ棬" href="http://www.aygfsteel.com/roymoro/archive/2012/01/02/367731.html" target="_blank"><font color="#002c99">http://www.aygfsteel.com/roymoro/archive/2012/01/02/367731.html</font></a></td></tr></tbody></table>Hadoop </span><span style="font-family: 瀹嬩綋; font-size: 22pt">瀹炶返鍏ラ棬<br></span><p></p> <p style="text-indent: -21.25pt; margin: 0cm 0cm 0pt 21.25pt"><span>1<span style="font: 7pt 'Times New Roman'"> </span></span><span style="font-family: 瀹嬩綋">瀹為獙鐜鎼緩</span></p> <p style="text-indent: -1cm; margin: 0cm 0cm 0pt 49.6pt"><span>1.1<span style="font: 7pt 'Times New Roman'"> </span></span><span style="font-family: 瀹嬩綋">鍑嗗宸ヤ綔</span></p> <p style="margin: 0cm 0cm 0pt 63pt">ubuntu/redhat</p> <p style="margin: 0cm 0cm 0pt 63pt">JDK/openjdk</p> <p style="margin: 0cm 0cm 0pt 63pt">Hadoop</p> <p style="margin: 0cm 0cm 0pt 63pt">Eclipse</p> <p style="margin: 0cm 0cm 0pt 63pt">vmvare/virtureBox</p> <p style="text-indent: -1cm; margin: 0cm 0cm 0pt 70.9pt"><span>1.1.1<span style="font: 7pt 'Times New Roman'"> </span></span>ubuntu <span style="font-family: 瀹嬩綋">瀹夎</span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> </span><span style="font-family: 瀹嬩綋">涓嬭澆鏈€鏂扮増鏈?/span>ubuntu 11.10<span style="font-family: 瀹嬩綋">銆?/span></span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> </span><span style="font-family: 瀹嬩綋">瀹夎娉ㄦ剰浜嬮」錛?/span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> <span style="color: red">1</span></span><span style="font-family: 瀹嬩綋; color: red">銆佸叧闂槻鐏錛?/span><span style="color: red">shell</span><span style="font-family: 瀹嬩綋; color: red">鍛戒護(hù)</span><span style="color: red"> sudo ufw disable</span><span style="font-family: 瀹嬩綋; color: red">銆備笉鍏抽棴鏈夊彲鑳介€犳垚</span><span style="color: red">master slave </span><span style="font-family: 瀹嬩綋; color: red">閫氫俊澶辮觸銆傚嚭鐜拌繛鎺ヨ秴鏃訛紝閲嶈繛閿欒銆傚彲浠ラ€氳繃鎸囧畾</span><span style="color: red">iptables </span><span style="font-family: 瀹嬩綋; color: red">瀹炵幇绔彛榪囨護(hù)銆?/span></span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span style="color: red"> 2</span><span style="font-family: 瀹嬩綋; color: red">銆佸畨瑁?/span><span style="color: red">ssh</span><span style="font-family: 瀹嬩綋; color: red">錛堢敤浜?/span><span style="color: red">master</span><span style="font-family: 瀹嬩綋; color: red">鍜?/span><span style="color: red">slave</span><span style="font-family: 瀹嬩綋; color: red">榪滅▼鐧誨綍錛夛細(xì)</span><span style="color: red">sudo apt-get install ssh</span></span></span></span></p> <p style="text-indent: -1cm; margin: 0cm 0cm 0pt 70.9pt"><span>1.1.2<span style="font: 7pt 'Times New Roman'"> </span></span><span style="font-family: 瀹嬩綋">瀹夎</span>jdk</p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> 1</span><span style="font-family: 瀹嬩綋">錛夎В鍘?/span>sun jdk<span style="font-family: 瀹嬩綋">鍘嬬緝鍖呭埌鎸囧畾鐨勬枃浠跺す銆?/span></span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> sudo vi /etc/profile </span><span style="font-family: 瀹嬩綋">鎴栬€?/span> etc nano /etc/profile</span></p> <ul style="margin-top: 0cm" type="square"><li><span> </span><span style="font-family: 瀹嬩綋">閰嶇疆</span>/etc/profile<span style="font-family: 瀹嬩綋">錛屽姞鍏ワ細(xì)</span></li></ul> <p style="text-indent: 35.9pt; margin: 0cm 0cm 0pt 54pt">export JAVA_HOME=/usr/java/jdk1.6.0_22</p> <p style="text-indent: 35.9pt; margin: 0cm 0cm 0pt 54pt">export JRE_HOME=/usr/java/jdk1.6.0_22/jre</p> <p style="text-indent: 35.9pt; margin: 0cm 0cm 0pt 54pt">export CLASSPATH=.:$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH</p> <p style="text-indent: 35.9pt; margin: 0cm 0cm 0pt 54pt">export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$PATH</p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> 2</span><span style="font-family: 瀹嬩綋">錛夊彲浠ヤ嬌鐢?/span>openjdk sudo apt-get insall open-jdk-6 <span style="font-family: 瀹嬩綋">鎴栬€呴€氳繃杞歡涓績銆?/span></span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"> </p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span style="font-family: 瀹嬩綋">楠岃瘉</span> shell<span style="font-family: 瀹嬩綋">鍛戒護(hù)</span> <span style="font-family: 瀹嬩綋">錛?/span>java -version <span style="font-family: 瀹嬩綋">鐪嬫槸鍚︿笌浣犵殑鐗堟湰鍙蜂竴鑷?/span></span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt">1.1.3 <span style="font-family: 瀹嬩綋">瀹夎</span>hadoop</p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span style="font-family: 瀹嬩綋">鍦ㄦ瘡鍙版満鍣ㄤ笂鐩稿悓鐢ㄦ埛鐨?/span>home<span style="font-family: 瀹嬩綋">鏍圭洰褰曚笅瑙ｅ帇錛?/span>hadoop-0.20.2.tar.gz <span style="font-family: 瀹嬩綋">閰嶇疆</span>conf/hadoop-env.sh<span style="font-family: 瀹嬩綋">鏂囦歡銆?/span> <span style="font-family: 瀹嬩綋">澧炲姞</span> export JAVA_HOME =/usr/lib/jvm/java-6-openjdk <span style="font-family: 瀹嬩綋">榪欓噷淇敼涓轟綘鐨?/span>jdk<span style="font-family: 瀹嬩綋">鐨勫畨瑁呬綅緗€?/span></span></span></span></span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"> </p> <p style="text-indent: -1cm; margin: 0cm 0cm 0pt 49.6pt"><span>1.2<span style="font: 7pt 'Times New Roman'"> </span></span><span style="font-family: 瀹嬩綋">浼垎甯冨紡鎼緩</span></p> <p style="margin: 0cm 0cm 0pt 21.25pt"><span> Hadoop</span><span style="font-family: 瀹嬩綋">鍙互鍦ㄥ崟鐢?shù)鍟嗕互湄?fù)鍒嗗竷鍒嗗竷寮忔ā寮忚繍琛岋紝鐢ㄤ笉鍚岀殑</span>java<span style="font-family: 瀹嬩綋">榪涚▼妯℃嫙鍒嗗竷寮忎腑鐨勪腑鐨勫悇綾昏妭鐐?/span>namenode<span style="font-family: 瀹嬩綋">錛?/span>datanode<span style="font-family: 瀹嬩綋">錛?/span>jobtracker<span style="font-family: 瀹嬩綋">錛?/span>tasktracker<span style="font-family: 瀹嬩綋">錛?/span>secondary namenode</span></span></span></span></span></p> <p style="text-indent: -1cm; margin: 0cm 0cm 0pt 70.9pt"><span>1.2.1<span style="font: 7pt 'Times New Roman'"> </span></span>hadoop<span style="font-family: 瀹嬩綋">閰嶇疆</span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> hadoop 0.2.0.2</span><span style="font-family: 瀹嬩綋">涔嬪悗闇€瑕佷慨鏀?/span>core-site.xml\hdfs-site.xml <span style="font-family: 瀹嬩綋">浠ュ強(qiáng)</span> mapred-site.xml</span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span style="font-family: 瀹嬩綋">閰嶇疆鏂囦歡濡備笅錛?/span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt">core-site.xml <span style="font-family: 瀹嬩綋">閰嶇疆鏍稿績鍐呭錛屽叾涓?/span>fs.default.name <span style="font-family: 瀹嬩綋">涓?/span>hdfs<span style="font-family: 瀹嬩綋">鍦板潃錛?/span>tmp<span style="font-family: 瀹嬩綋">涓?/span>hadoop.tnp.dir<span style="font-family: 瀹嬩綋">涓轟復(fù)鏃舵枃浠?/span></span></span></span></span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><configuration></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> <property></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> <name>fs.default.name</name></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> <value>hdfs://localhost:49000</value></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> </property></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><property></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><name>hadoop.tmp.dir</name></p> <p style="margin: 0cm 0cm 0pt 42.55pt"> <value>/home/hadooper/hadooptmp</value></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> </property></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"></configuration></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span style="font-family: 瀹嬩綋; color: red">娉ㄦ剰浜嬮」錛氫竴瀹氳鎸囧畾錛岀浉鍚岀殑鐢ㄦ埛鍚嶏紝騫朵笖</span><span style="color: red">tmp</span><span style="font-family: 瀹嬩綋; color: red">涓€瀹氳璁劇疆錛屽惁鍒欎細(xì)鍑虹幇鏉冮檺闂銆傚鑷?/span><span style="color: red">hadoop</span><span style="font-family: 瀹嬩綋; color: red">鍚姩澶辮觸銆備篃鍙互閫氳繃</span><span style="color: red">chmod </span><span style="font-family: 瀹嬩綋; color: red">鍛戒護(hù)鏉ユ敼鍙橀粯璁?/span><span style="color: red">tmp</span><span style="font-family: 瀹嬩綋; color: red">鐨勬潈闄愩€傞粯璁?/span><span style="color: red">tmp</span><span style="font-family: 瀹嬩綋; color: red">璺緞涓猴細(xì)</span><span style="color: red">/usr/tmp</span><span style="font-family: 瀹嬩綋; color: red">銆傛帹鑽愮涓€縐嶆柟寮忋€?/span></span></span></span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"> </p> <p style="margin: 0cm 0cm 0pt 42.55pt">hdfs-site.xml <span style="font-family: 瀹嬩綋">璁劇疆</span> hdfs <span style="font-family: 瀹嬩綋">鍙傛暟</span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><configuration></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> <property></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> <name>dfs.replication</name></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> <value>1</value></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> </property></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"></configuration></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span style="font-family: 瀹嬩綋">榪欓噷</span>dfs.replication<span style="font-family: 瀹嬩綋">鎸囧潡鐨勫壇鏈暟銆傚壇鏈暟鍏蜂綋絳栫暐鍙弬鍔犺</span>hadoop<span style="font-family: 瀹嬩綋">瀹樻柟鎸囧崡銆?/span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"> </p> <p style="margin: 0cm 0cm 0pt 42.55pt">mapred-site.xml <span style="font-family: 瀹嬩綋">鏂囦歡鐨勪慨鏀?/span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><configuration></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> <property></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> <name>mapred.job.tracker</name></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> <value>localhost:49001</value></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span> </property></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"></configuration></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span style="font-family: 瀹嬩綋">榪欎釜璁劇疆浜?/span>jobtracker<span style="font-family: 瀹嬩綋">鐨勭鍙ｃ€?/span></span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span style="font-family: 瀹嬩綋; color: red">娉ㄦ剰绔彛鐨勯€夋嫨涓€瀹氳鎭板綋錛屽挨鍏舵槸闆嗙兢鐨勯厤緗€傞粯璁ょ殑</span><span style="color: red">9000</span><span style="font-family: 瀹嬩綋; color: red">鍜?/span><span style="color: red">9001</span><span style="font-family: 瀹嬩綋; color: red">寰堝鏄撹</span><span style="color: red">ubuntu</span><span style="font-family: 瀹嬩綋; color: red">涓叾浠栬繘紼嬪崰鐢紝瀵艱嚧</span><span style="color: red">datanode</span><span style="font-family: 瀹嬩綋; color: red">澶辨晥錛屽洜姝ら€夋嫨娌℃湁鍗犵敤鐨?/span><span style="color: red">49000 </span><span style="font-family: 瀹嬩綋; color: red">鍜?/span><span style="color: red">49001</span><span style="font-family: 瀹嬩綋; color: red">銆傜瑪鑰咃紝鏇劇粡灝辨浘鍥版壈涓庢銆傞泦緹ら厤緗腑灝嗗啀嬈″己璋冦€?/span></span></span></span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"> </p> <p style="text-indent: -1cm; margin: 0cm 0cm 0pt 70.9pt"><span>1.2.2<span style="font: 7pt 'Times New Roman'"> </span></span>ssh<span style="font-family: 瀹嬩綋">璁劇疆</span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span style="font-family: 瀹嬩綋">鍥犱負(fù)</span>master<span style="font-family: 瀹嬩綋">闇€瑕佽闂?/span>datanode<span style="font-family: 瀹嬩綋">鍥犳闇€瑕佸厤瀵嗙爜</span>ssh</span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span style="font-family: 瀹嬩綋">璁劇疆鏂規(guī)硶錛?/span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt">ssh-keygen -t rsa<span style="font-family: 瀹嬩綋">鐒跺悗涓€鐩存寜鍥炶濺</span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span style="font-family: 瀹嬩綋">瀹屾垚鍚庯紝鍦?/span>home<span style="font-family: 瀹嬩綋">璺熺洰褰曚笅浼?xì)漶旂敓闅愯棌鏂囦欢澶?/span>.ssh</span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt">cd .ssh</p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span style="font-family: 瀹嬩綋">涔嬪悗</span>ls <span style="font-family: 瀹嬩綋">鏌ョ湅鏂囦歡</span></p> <p style="margin: 0cm 0cm 0pt 42.55pt">cp id_rsa.pub authorized_keys</p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span style="font-family: 瀹嬩綋">嫻嬭瘯錛?/span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt">ssh localhost<span style="font-family: 瀹嬩綋">鍙戠幇閾炬帴鎴愬姛錛屽茍涓旀棤闇€瀵嗙爜銆?/span></span></p> <p style="text-indent: -1cm; margin: 0cm 0cm 0pt 70.9pt"><span>1.2.3<span style="font: 7pt 'Times New Roman'"> </span></span>hadoop<span style="font-family: 瀹嬩綋">榪愯</span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span style="font-family: 瀹嬩綋">鍦?/span>hadoop<span style="font-family: 瀹嬩綋">瀹夎鐩綍涓嬶細(xì)</span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span style="font-family: 瀹嬩綋">棣栧厛</span> bin/hadoop namenode -format<span style="font-family: 瀹嬩綋">鏍煎紡鍖栨枃浠剁郴緇?/span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span style="font-family: 瀹嬩綋">鐒跺悗</span> bin/start-all.sh <span style="font-family: 瀹嬩綋">鏉ュ惎鍔ㄥ畧鎶よ繘紼嬨€?/span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"><span style="font-family: 瀹嬩綋">鍒╃敤</span>java <span style="font-family: 瀹嬩綋">鍛戒護(hù)</span> jps <span style="font-family: 瀹嬩綋">鏌ョ湅榪涚▼銆傛垨鑰呴€氳繃</span> <span style="font-family: 瀹嬩綋">緗戝潃錛?/span>localhost:50070 localhost:50030<span style="font-family: 瀹嬩綋">鏉ユ煡鐪嬫槸鍚︽垚鍔熴€?/span></span></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"> </p> <p style="text-indent: -1cm; margin: 0cm 0cm 0pt 49.6pt"><span>1.3<span style="font: 7pt 'Times New Roman'"> </span></span><span style="font-family: 瀹嬩綋">闆嗙兢鎼緩</span></p> <p style="margin: 0cm 0cm 0pt 21.25pt"><span style="font-family: 瀹嬩綋">濡備笂鎵€榪板畨瑁?/span>ubuntu <span style="font-family: 瀹嬩綋">騫朵笖鎷ユ湁鐩稿悓鐢ㄦ埛銆傚畨瑁?/span>jdk <span style="font-family: 瀹嬩綋">錛屽畨瑁?/span>hadoop<span style="font-family: 瀹嬩綋">銆傞厤緗?/span>jdk<span style="font-family: 瀹嬩綋">璺緞絳夈€?/span></span></span></span></span></span></p> <p style="text-indent: -1cm; margin: 0cm 0cm 0pt 70.9pt"><span>1.3.1<span style="font: 7pt 'Times New Roman'"> </span></span><span style="font-family: 瀹嬩綋">涓繪満淇℃伅錛?/span></span></p> <div align="center"> <table style="width: 305.25pt" border="0" cellspacing="0" cellpadding="0" width="407"> <tbody> <tr style="height: 34.5pt"> <td style="border-bottom: black 1pt solid; border-left: black 1.5pt solid; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 63pt; padding-right: 0cm; height: 34.5pt; border-top: black 1.5pt solid; border-right: black 1pt solid; padding-top: 0cm" valign="top" width="84"> <p style="margin: 0cm 0cm 0pt 21.25pt"><span style="font-family: 瀹嬩綋">鏈哄櫒鍚?/span></span></p></td> <td style="border-bottom: black 1pt solid; border-left: black 1pt solid; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 74.25pt; padding-right: 0cm; height: 34.5pt; border-top: black 1.5pt solid; border-right: black 1pt solid; padding-top: 0cm" valign="top" width="99"> <p style="margin: 0cm 0cm 0pt 21.25pt">IP<span style="font-family: 瀹嬩綋">鍦板潃</span></p></td> <td style="border-bottom: black 1pt solid; border-left: black 1pt solid; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 169.5pt; padding-right: 0cm; height: 34.5pt; border-top: black 1.5pt solid; border-right: black 1.5pt solid; padding-top: 0cm" valign="top" width="226"> <p style="margin: 0cm 0cm 0pt 21.25pt"><span style="font-family: 瀹嬩綋">浣滅敤</span></p></td></tr> <tr style="height: 33.75pt"> <td style="border-bottom: black 1pt solid; border-left: black 1.5pt solid; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 63pt; padding-right: 0cm; height: 33.75pt; border-top: black 1pt solid; border-right: black 1pt solid; padding-top: 0cm" valign="top" width="84"> <p style="margin: 0cm 0cm 0pt 21.25pt">Node1</p></td> <td style="border-bottom: black 1pt solid; border-left: black 1pt solid; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 74.25pt; padding-right: 0cm; height: 33.75pt; border-top: black 1pt solid; border-right: black 1pt solid; padding-top: 0cm" valign="top" width="99"> <p style="margin: 0cm 0cm 0pt 21.25pt">192.168.234.128</p></td> <td style="border-bottom: black 1pt solid; border-left: black 1pt solid; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 169.5pt; padding-right: 0cm; height: 33.75pt; border-top: black 1pt solid; border-right: black 1.5pt solid; padding-top: 0cm" valign="top" width="226"> <p style="margin: 0cm 0cm 0pt 21.25pt">NameNode<span style="font-family: 瀹嬩綋">銆?/span>JobTracker</span></p></td></tr> <tr style="height: 35.25pt"> <td style="border-bottom: black 1pt solid; border-left: black 1.5pt solid; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 63pt; padding-right: 0cm; height: 35.25pt; border-top: black 1pt solid; border-right: black 1pt solid; padding-top: 0cm" valign="top" width="84"> <p style="margin: 0cm 0cm 0pt 21.25pt">Node2</p></td> <td style="border-bottom: black 1pt solid; border-left: black 1pt solid; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 74.25pt; padding-right: 0cm; height: 35.25pt; border-top: black 1pt solid; border-right: black 1pt solid; padding-top: 0cm" valign="top" width="99"> <p style="margin: 0cm 0cm 0pt 21.25pt">192.168.234.129</p></td> <td style="border-bottom: black 1pt solid; border-left: black 1pt solid; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 169.5pt; padding-right: 0cm; height: 35.25pt; border-top: black 1pt solid; border-right: black 1.5pt solid; padding-top: 0cm" valign="top" width="226"> <p style="margin: 0cm 0cm 0pt 21.25pt">DataNode<span style="font-family: 瀹嬩綋">銆?/span>TaskTracker</span></p></td></tr> <tr style="height: 35.25pt"> <td style="border-bottom: black 1.5pt solid; border-left: black 1.5pt solid; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 63pt; padding-right: 0cm; height: 35.25pt; border-top: black 1pt solid; border-right: black 1pt solid; padding-top: 0cm" valign="top" width="84"> <p style="margin: 0cm 0cm 0pt 21.25pt">Node3</p></td> <td style="border-bottom: black 1.5pt solid; border-left: black 1pt solid; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 74.25pt; padding-right: 0cm; height: 35.25pt; border-top: black 1pt solid; border-right: black 1pt solid; padding-top: 0cm" valign="top" width="99"> <p style="margin: 0cm 0cm 0pt 21.25pt">192.168.234.130</p></td> <td style="border-bottom: black 1.5pt solid; border-left: black 1pt solid; padding-bottom: 0cm; background-color: transparent; padding-left: 0cm; width: 169.5pt; padding-right: 0cm; height: 35.25pt; border-top: black 1pt solid; border-right: black 1.5pt solid; padding-top: 0cm" valign="top" width="226"> <p style="margin: 0cm 0cm 0pt 21.25pt">DataNode<span style="font-family: 瀹嬩綋">銆?/span>TaskTracker</span></p></td></tr></tbody></table></div> <p style="margin: 0cm 0cm 0pt 21.25pt"><span style="font-family: 瀹嬩綋">淇敼姣忓彴鏈哄櫒涓婄殑</span>hosts</p> <p style="margin: 0cm 0cm 0pt 21.25pt">sudo vi /etc/hosts</p> <p style="margin: 0cm 0cm 0pt 21.25pt">192.168.1.31<span> node1</span></p> <p style="margin: 0cm 0cm 0pt 21.25pt">192.168.1.32 node2</p> <p style="margin: 0cm 0cm 0pt 21.25pt">192.168.1.33 <span> node3</span></p> <p style="text-indent: -1cm; margin: 0cm 0cm 0pt 70.9pt"><span>1.3.2<span style="font: 7pt 'Times New Roman'"> </span></span>ssh <span style="font-family: 瀹嬩綋">璁劇疆</span></p> <p style="text-indent: -18pt; margin: 0cm 0cm 0pt 36pt"><span style="font-family: 'Comic Sans MS'"> <span style="font: 7pt 'Times New Roman'"> </span></span> <span style="font-family: 瀹嬩綋">鎶?/span>NameNode <span style="font-family: 瀹嬩綋">涓婄殑</span>id_dsa.pub <span style="font-family: 瀹嬩綋">鏂囦歡榪藉姞鍒?/span>DataNode <span style="font-family: 瀹嬩綋">鐨?/span>authorized_keys <span style="font-family: 瀹嬩綋">鍐咃細(xì)</span></span></span></span></p> <p style="text-indent: -18pt; margin: 0cm 0cm 0pt 36pt"><span style="font-family: 'Comic Sans MS'"> <span style="font: 7pt 'Times New Roman'"> </span></span> a. <span style="font-family: 瀹嬩綋">鎷瘋礉</span>NameNode <span style="font-family: 瀹嬩綋">鐨?/span>id_dsa.pub <span style="font-family: 瀹嬩綋">鏂囦歡錛?/span></span></span></p> <p style="text-indent: -18pt; margin: 0cm 0cm 0pt 36pt"><span style="font-family: 'Comic Sans MS'"> <span style="font: 7pt 'Times New Roman'"> </span></span> $ scp id_dsa.pub hadooper@node2:/home/hadoop/</p> <p style="text-indent: -18pt; margin: 0cm 0cm 0pt 36pt"><span style="font-family: 'Comic Sans MS'"> <span style="font: 7pt 'Times New Roman'"> </span></span> b. <span style="font-family: 瀹嬩綋">鐧誨綍</span>node2<span style="font-family: 瀹嬩綋">錛屾墽琛?/span></span></p> <p style="text-indent: -18pt; margin: 0cm 0cm 0pt 36pt"><span style="font-family: 'Comic Sans MS'"> <span style="font: 7pt 'Times New Roman'"> </span></span><span> $ cat id_dsa.pub >> .ssh/authorized_keys</span></p> <p style="text-indent: -18pt; margin: 0cm 0cm 0pt 36pt"><span style="font-family: 'Comic Sans MS'"> <span style="font: 7pt 'Times New Roman'"> </span></span><span style="font-family: 瀹嬩綋">鍦ㄦ墍鏈?/span>datanode<span style="font-family: 瀹嬩綋">涓婃墽琛岀浉鍚岀殑鎿嶄綔銆?/span></span></span></p> <p style="text-indent: -18pt; margin: 0cm 0cm 0pt 36pt"><span style="font-family: 'Comic Sans MS'"> <span style="font: 7pt 'Times New Roman'"> </span></span><span style="font-family: 瀹嬩綋">楠岃瘉錛氫粠</span>node1 </p> <p style="text-indent: -18pt; margin: 0cm 0cm 0pt 36pt"><span style="font-family: 'Comic Sans MS'"> <span style="font: 7pt 'Times New Roman'"> </span></span>ssh node2</p> <p style="text-indent: -18pt; margin: 0cm 0cm 0pt 36pt"><span style="font-family: 'Comic Sans MS'"> <span style="font: 7pt 'Times New Roman'"> </span></span>exit</p> <p style="text-indent: -18pt; margin: 0cm 0cm 0pt 36pt"><span style="font-family: 'Comic Sans MS'"> <span style="font: 7pt 'Times New Roman'"> </span></span>ssh node3</p> <p style="text-indent: -18pt; margin: 0cm 0cm 0pt 36pt"><span style="font-family: 'Comic Sans MS'"> <span style="font: 7pt 'Times New Roman'"> </span></span>exit</p> <p style="text-indent: -18pt; margin: 0cm 0cm 0pt 36pt"><span style="font-family: 'Comic Sans MS'"> <span style="font: 7pt 'Times New Roman'"> </span></span><span style="font-family: 瀹嬩綋">濡傛灉鍏ㄩ儴鍏嶅瘑鐮佺櫥褰曞垯鎴愬姛</span></p> <p style="text-indent: -1cm; margin: 0cm 0cm 0pt 70.9pt"><span>1.3.3<span style="font: 7pt 'Times New Roman'"> </span></span><span style="font-family: 瀹嬩綋">閰嶇疆</span>hadoop</p> <p style="margin: 0cm 0cm 0pt 44.95pt"><span style="font-family: 瀹嬩綋">閰嶇疆</span>conf/masters <span style="font-family: 瀹嬩綋">鍜?/span>conf/slaves <span style="font-family: 瀹嬩綋">鏂囦歡</span></span></p> <p style="margin: 0cm 0cm 0pt 44.95pt">Masters</p> <p style="margin: 0cm 0cm 0pt 44.95pt">node1</p> <p style="margin: 0cm 0cm 0pt 44.95pt">Slaves</p> <p style="margin: 0cm 0cm 0pt 44.95pt">node2</p> <p style="margin: 0cm 0cm 0pt 44.95pt">node3</p> <p style="margin: 0cm 0cm 0pt 44.95pt"> </p> <p style="margin: 0cm 0cm 0pt 44.95pt">core-site mapred-site <span style="font-family: 瀹嬩綋">鍜?/span>hdfs-site <span style="font-family: 瀹嬩綋">鍜屼吉鍒嗗竷閰嶇疆鍩烘湰鐩稿悓</span>.<span style="font-family: 瀹嬩綋">鍙槸瀵瑰簲鍦板潃錛?/span>localhost<span style="font-family: 瀹嬩綋">鎹㈡垚浜?/span>namenode<span style="font-family: 瀹嬩綋">鐨勫悕縐幫紝</span>node1<span style="font-family: 瀹嬩綋">銆?/span></span></span></span></span></p> <p style="text-indent: -18pt; margin: 0cm 0cm 0pt 62.95pt"><span style="font-family: Wingdings">q<span style="font: 7pt 'Times New Roman'"> </span></span><span style="font-family: 瀹嬩綋">閰嶇疆</span>conf/core-site.xml</p> <p style="margin: 0cm 0cm 0pt 44.95pt"><configuration></p> <p style="margin: 0cm 0cm 0pt 44.95pt"> <property></p> <p style="margin: 0cm 0cm 0pt 44.95pt"><span> <name>fs.default.name</name></span></p> <p style="margin: 0cm 0cm 0pt 44.95pt"><span> <value>hdfs://<span style="color: red">node1</span>:49000</value></span></p> <p style="margin: 0cm 0cm 0pt 44.95pt"> </property></p> <p style="margin: 0cm 0cm 0pt 44.95pt"></configuration></p> <p style="margin: 0cm 0cm 0pt 44.95pt"><span style="font-family: 瀹嬩綋; color: red">浠嶇劧娉ㄦ剰绔彛錛屽湪榪愯鏃跺鏋?/span><span style="color: red">datanode</span><span style="font-family: 瀹嬩綋; color: red">榪炴帴涓嶄笂</span><span style="color: red">namenode</span><span style="font-family: 瀹嬩綋; color: red">錛屾湁鍙兘鏄敱浜庣鍙ｉ棶棰樸€傛崲涓€涓鍙?/span></span></span></p> <p style="text-indent: -1cm; margin: 0cm 0cm 0pt 70.9pt"><span>1.3.4<span style="font: 7pt 'Times New Roman'"> </span></span><span style="font-family: 瀹嬩綋">榪愯</span>hadoop</p> <p style="margin: 0cm 0cm 0pt 44.95pt"><span style="font-family: 瀹嬩綋">棣栧厛鏍煎紡鍖栨枃浠剁郴緇燂細(xì)</span>$ bin/hadoop namenode –format</p> <p style="margin: 0cm 0cm 0pt 44.95pt"><span style="font-family: 瀹嬩綋">鍚姩</span>Hadoop<span style="font-family: 瀹嬩綋">闆嗙兢錛?/span></span></p> <p style="margin: 0cm 0cm 0pt 44.95pt">$ bin/start-all.sh</p> <p style="margin: 0cm 0cm 0pt 44.95pt"><span style="font-family: 瀹嬩綋">鍋滄</span>Hadoop<span style="font-family: 瀹嬩綋">闆嗙兢錛?/span></span></p> <p style="margin: 0cm 0cm 0pt 44.95pt">$ bin/stop-all.sh</p> <p style="margin: 0cm 0cm 0pt 44.95pt"><span style="font-family: 瀹嬩綋">鏌ョ湅闆嗙兢鐘舵€侊細(xì)</span>$ bin/hadoop dfsadmin -report</p> <p style="margin: 0cm 0cm 0pt 44.95pt">Hadoop <span style="font-family: 瀹嬩綋">鐨?/span>web <span style="font-family: 瀹嬩綋">鏂瑰紡鏌ョ湅</span></span></p> <p style="margin: 0cm 0cm 0pt 44.95pt">JobTracker<span style="font-family: 瀹嬩綋">錛?/span><a href="http://cnode031:50030/" target="_parent">http://node1:50030</a></span></p> <p style="margin: 0cm 0cm 0pt 44.95pt">NameNode<span style="font-family: 瀹嬩綋">錛?/span><a href="http://cnode031:50070/" target="_parent">http://node1:50070</a></span></p> <p style="margin: 0cm 0cm 0pt 42.55pt"> </p> <p style="margin: 0cm 0cm 0pt 21.25pt"> </p> <p style="margin: 0cm 0cm 0pt 21.25pt"></p> <p style="text-indent: -18pt; margin: 0cm 0cm 0pt 36pt"><span style="font-family: 'Comic Sans MS'"> <span style="font: 7pt 'Times New Roman'"> </span></span> </p> <p style="margin: 0cm 0cm 0pt 21.25pt"> </p> <p style="text-indent: -1cm; margin: 0cm 0cm 0pt 49.6pt"><span>1.4<span style="font: 7pt 'Times New Roman'"> </span></span>eclipse <span style="font-family: 瀹嬩綋">鎻掍歡瀹夎</span></p> <p style="margin: 0cm 0cm 0pt 21.25pt"><span style="font-family: 瀹嬩綋">瀹夎</span>eclipse <span style="font-family: 瀹嬩綋">鍙渶瑕佹妸</span>hadoop/contrib/eclipse-plus <span style="font-family: 瀹嬩綋">涓嬬殑鍖呰€冨埌</span>eclipse<span style="font-family: 瀹嬩綋">鐨?/span>plus<span style="font-family: 瀹嬩綋">閲屽嵆鍙€?/span>(<span style="font-family: 瀹嬩綋">璇ユ柟娉曟湁闂錛屽洜涓鴻鎻掍歡鍙兘閮ㄥ垎鏀寔</span>eclipse3.6<span style="font-family: 瀹嬩綋">錛屽鏋滈渶瑕佸叏閮ㄦ敮鎸佸畨瑁?/span>eclipse3.4<span style="font-family: 瀹嬩綋">浠ヤ笅鐗堟湰錛屾垨淇敼璇ユ彃浠惰緝澶嶆潅</span>)<span style="font-family: 瀹嬩綋">銆傚鏋滄湁璋佷慨鏀逛簡閫傚悎</span>3.6<span style="font-family: 瀹嬩綋">浠ヤ笂鐨勬彃浠?/span>roymoro@gmail.com.<span style="font-family: 瀹嬩綋">甯垜鍙戜竴浠姐€?/span></span></span></span></span></span></p> <p style="margin: 0cm 0cm 0pt 21.25pt"></p> <p> </p> <br><br><div align="right"><a style="text-decoration:none;" href="http://www.aygfsteel.com/roymoro/" target="_blank">scorpio灝忚潕</a> 2012-01-02 17:41 <a href="http://www.aygfsteel.com/roymoro/archive/2012/01/02/367731.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]> </article> <article> <h1>Java 瀹炵幇紼嬪簭榪愯鐘舵€佺洃鎺?涔嬫垜鐨勬€濊礬錛堝畧鎶よ繘紼嬶級</h1> <p>scorpio灝忚潕 — Mon, 09 May 2011 05:42:00 GMT</p> 闃呰鍏ㄦ枃<br><br><div align="right"><a style="text-decoration:none;" href="http://www.aygfsteel.com/roymoro/" target="_blank">scorpio灝忚潕</a> 2011-05-09 13:42 <a href="http://www.aygfsteel.com/roymoro/archive/2011/05/09/349833.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]> </article> <article> <h1>JAVA 姝ｅ垯琛ㄨ揪寮忕殑婧㈠嚭闂 鍙?qiáng)涓嶅畬鍏ㄨВ鍐虫栆?guī)銆?錛堟劅璋ancelot 鍦ㄨ瘎璁轟腑緇欏嚭鐨勬柟娉曪級</h1> <p>scorpio灝忚潕 — Thu, 28 Apr 2011 02:55:00 GMT</p> <span style="text-align: left; line-height: 23px; font-family: monospace; white-space: pre; font-size: 12px" class="Apple-style-span"><span style="line-height: 18px; color: rgb(0,0,0)">Exception in thread </span><span style="line-height: 18px; color: rgb(0,0,0)">"</span><span style="line-height: 18px; color: rgb(0,0,0)">main</span><span style="line-height: 18px; color: rgb(0,0,0)">"</span><span style="line-height: 18px; color: rgb(0,0,0)"> java.lang.StackOverflowError <br> at java.lang.Character.codePointAt(Character.java:</span><span style="line-height: 18px; color: rgb(0,0,0)">2335</span><span style="line-height: 18px; color: rgb(0,0,0)">) <br> at java.util.regex.Pattern$CharProperty.match(Pattern.java:</span><span style="line-height: 18px; color: rgb(0,0,0)">3344</span><span style="line-height: 18px; color: rgb(0,0,0)">) <br> at java.util.regex.Pattern$Branch.match(Pattern.java:</span><span style="line-height: 18px; color: rgb(0,0,0)">4114</span><span style="line-height: 18px; color: rgb(0,0,0)">) <br> at java.util.regex.Pattern$GroupHead.match(Pattern.java:</span><span style="line-height: 18px; color: rgb(0,0,0)">4168</span><span style="line-height: 18px; color: rgb(0,0,0)">) <br> at java.util.regex.Pattern$LazyLoop.match(Pattern.java:</span><span style="line-height: 18px; color: rgb(0,0,0)">4357</span><span style="line-height: 18px; color: rgb(0,0,0)">) <br> at java.util.regex.Pattern$GroupTail.match(Pattern.java:</span><span style="line-height: 18px; color: rgb(0,0,0)">4227</span><span style="line-height: 18px; color: rgb(0,0,0)">)<br> at java.util.regex.Pattern$BranchConn.match(Pattern.java:</span><span style="line-height: 18px; color: rgb(0,0,0)">4078</span><span style="line-height: 18px; color: rgb(0,0,0)">)<br> 綾諱技浜庝互涓婂紓甯革紝婧愯嚜浜庢鍒欏尮閰嶉渶瑕佷笉鏂湴閫掑綊瀛楃涓層€傚綋瀛楃涓查€掑綊瓚呰繃800+錛屽叿浣撴暟瀛楀繕璁頒簡錛屽氨浼?xì)鍑虹幇鍫嗘爤婧㈠嚭銆?br /> 鎴戝湪瀹為檯搴旂敤鐨勫満鏅槸錛屽尮閰嶄竴涓綉欏靛姹傘€奷iv銆嬨€?div銆?涔嬮棿鐨勫唴瀹廣€傚綋div 涔嬮棿瀛楃杈懼埌浜?50鐨勬椂鍊欒繖鏃跺€欎駭鐢熶簡綾諱技浠ヤ笂鐨勯敊璇€?br /> 緇忚繃<font face="Courier New"><a>鍒嗘瀽錛屽拰緗戝弸</a>閬囧埌鐨勭被浼奸棶棰樿創(chuàng)<font face="Courier New">http://topic.csdn.net/u/20110303/10/6a7dce52-481b-430a-b442-98099e9a01c9.html</font><br> 寰楀嚭浠ヤ笅涓嶅畬鍏ㄦ紜殑瑙ｆ瀽鏂規(guī)<br> <br> 鍦ㄦ鍒欒〃杈懼紡鍖歸厤鏃跺瀛楃涓暟榪涜闄愬埗濡傦細(xì)<font face="Courier New">"<div>(.*?|\n*|\r*)*</div></font> 鍙樻垚浜?<font face="Courier New"><div>(.*?|\n*|\r*){0,700}</div></font> 榪欐牱杈懼埌浜嗛檺鍒跺瓧絎︾殑浣滅敤銆?br /> 浣嗘槸褰撹В鏋愬埌姝ゆ潯鐩椂閫熷害浠嶇劧闈炲父鎱€€?br /> <br> 濡傛灉鎮(zhèn)ㄦ湁鏇村ソ鐨勮В鍐蟲柟妗堣鎮(zhèn)ㄨ仈緋繪垜銆?br /> <br> 嬈㈣繋杞笘銆傝漿甯栬鏍囨敞鍑哄錛屼互鏇村ソ鐨勫拰澶у鎺㈣瑙ｅ喅闂銆?/font></font></span></span><font face="Courier New"> <br> 鈥斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€斺€?br /> Lancelot 鎻愬嚭鐨勬鍒?lt;div[^>]*>([\s\S]*?)</div> 鎴?lt;div>([\s\S]*?)</div> <br> 鐢變簬娌℃湁鍒嗘敮鏉′歡錛屽洜姝ゅぇ澶у噺灝戜簡姝ｅ垯鍖歸厤榪囩▼鐨勫洖婧繁搴︺€傚洜姝ゆ垚鍔熻В鍐充簡榪欎竴闂銆?br /> 鐩墠鑳藉拰澶у鍒嗕韓鐨勬槸錛屽鏋滈亣鍒扮被浼奸棶棰樿繕闇€綆€鍖栨鍒欙紝鍑忓皯鍒嗘敮鏉′歡絳夈€?br /> 濡傛灉鎮(zhèn)ㄦ湁鏇村ソ鐨勬柟妗堟榪庢?zhèn)ㄦ彁鍑哄疂璐电殑寰忚銆? <br><br><div align="right"><a style="text-decoration:none;" href="http://www.aygfsteel.com/roymoro/" target="_blank">scorpio灝忚潕</a> 2011-04-28 10:55 <a href="http://www.aygfsteel.com/roymoro/archive/2011/04/28/349163.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></font> </article> <article> <h1>java 鏋氫婦瀛︿範(fàn)--浠庡皬紼嬪簭涓涔?/title><link>http://www.aygfsteel.com/roymoro/archive/2011/03/02/345523.html</link><dc:creator>scorpio灝忚潕</dc:creator><author>scorpio灝忚潕</author><pubDate>Wed, 02 Mar 2011 12:32:00 GMT</pubDate><guid>http://www.aygfsteel.com/roymoro/archive/2011/03/02/345523.html</guid><wfw:comment>http://www.aygfsteel.com/roymoro/comments/345523.html</wfw:comment><comments>http://www.aygfsteel.com/roymoro/archive/2011/03/02/345523.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/roymoro/comments/commentRss/345523.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/roymoro/services/trackbacks/345523.html</trackback:ping><description><![CDATA[ <p>Java <span style="font-family: 瀹嬩綋">鏋氫婦綾誨瀷</span> <span style="font-family: 瀹嬩綋">瑙ｆ瀽</span></p> <p><span style="font-family: 瀹嬩綋">綆€浠嬶細(xì)</span>java<span style="font-family: 瀹嬩綋">涓灇涓炬槸涓€涓被</span></p> <p><span style="font-family: 瀹嬩綋">鐢ㄤ箣鍓嶆垜瑙夊緱榪樻槸瑕佺煡閬撳簲璇ヤ綍鏃朵嬌鐢細(xì)</span></p> <p><span style="font-family: 瀹嬩綋">涓€鏉℃櫘閬嶇殑瑙勫緥鏄紝浠諱綍浣跨敤甯擱噺鐨勫湴鏂癸紝渚嬪鐩墠浣跨敤鐨?/span>switch <span style="font-family: 瀹嬩綋">浠ｇ爜鍒囨崲鐨勫湴鏂廣€?/span> <span style="font-family: 瀹嬩綋">濡傛灉鍙槸鍗曠嫭涓€涓€鹼紙渚嬪錛?/span> max <span style="font-family: 瀹嬩綋">鍜?/span>min<span style="font-family: 瀹嬩綋">錛夎繖綾誨彧瑕佹妸浠誨姟鐣欑粰甯擱噺灝辮銆備絾鏄鏋滃畾涔変簡涓€緇勫€鹼紝鑰岃繖浜涘€間腑鐨勪換浣曚竴涓兘鍙互鐢ㄤ簬鐗瑰畾鐨勬暟鎹被鍨嬶紝閭ｄ箞灝嗘灇涓劇敤鍦ㄨ繖涓湴鏂規(guī)渶閫傚悎涓嶈繃銆?/span></p> <p>Java <span style="font-family: 瀹嬩綋">浠ｇ爜</span></p> <ol type="1"> <li style="text-align: left; tab-stops: list 36.0pt" class="MsoNormal"><span style="font-family: 瀹嬩綋; font-size: 12pt">public enum Color{ </span></li> <li style="text-align: left; tab-stops: list 36.0pt" class="MsoNormal"><span style="font-family: 瀹嬩綋; font-size: 12pt"> RED,BLUE,BLACK,YELLOW,GREEN </span></li> <li style="text-align: left; tab-stops: list 36.0pt" class="MsoNormal"><span style="font-family: 瀹嬩綋; font-size: 12pt">} </span></li> </ol> <p><span style="font-family: 瀹嬩綋">浠庤繖閲岀湅鍒?/span>Enum <span style="font-family: 瀹嬩綋">鏄竴涓被銆?/span> <span style="font-family: 瀹嬩綋">鑰岃繖浜涚被閮芥槸綾誨簱涓?/span>enum<span style="font-family: 瀹嬩綋">鐨勫瓙綾匯€?/span></p> <p>Java<span style="font-family: 瀹嬩綋">涓凡鏈夌殑</span>enum <span style="font-family: 瀹嬩綋">鏄?/span>Color <span style="font-family: 瀹嬩綋">鏋氫婦綾匯€?/span>Color c=Color.RED;<span style="font-family: 瀹嬩綋">榪欎簺閮芥槸</span>public static final <span style="font-family: 瀹嬩綋">鐨?/span></p> <p><span style="font-family: 瀹嬩綋">鏃㈢劧鏋氫婦綾繪槸</span>class<span style="font-family: 瀹嬩綋">錛屽綋鐒跺湪鏋氫婦綾諱腑鏈夋瀯閫犲櫒錛屾柟娉曞拰鏁版嵁鍩熴€備絾鏄畠鏄壒孌婄殑鏋勯€犲嚱鏁般€傦紙涓嶆繁鍏ョ爺絀訛紝鍙簲鐢級</span></p> <p><span style="font-family: 瀹嬩綋; color: red">鏋氫婦涓父瑙佺殑鏂規(guī)硶</span><span style="font-family: 瀹嬩綋; color: red">錛?/span></p> <p style="text-align: left" class="MsoNormal" align="left">Ordinal<span style="font-family: 瀹嬩綋">錛堬級錛?/span><span style="font-family: 瀹嬩綋; font-size: 12pt">榪斿洖鏋氫婦鍊煎湪鏋氫婦綾葷鐨勯『搴忋€傝繖涓『搴忔牴鎹灇涓懼€煎０鏄庣殑欏哄簭鑰屽畾銆?br /> Color.RED.ordinal(); //榪斿洖緇撴灉錛?<br /> Color.BLUE.ordinal(); //榪斿洖緇撴灉錛?<br /> compareTo()鏂規(guī)硶: Enum瀹炵幇浜唈ava.lang.Comparable鎺ュ彛錛屽洜姝ゅ彲浠ユ瘮杈冭薄涓庢寚瀹氬璞＄殑欏哄簭銆侲num涓殑compareTo榪斿洖鐨勬槸涓や釜鏋氫婦鍊肩殑欏哄簭涔嬪樊銆傚綋鐒訛紝鍓嶆彁鏄袱涓灇涓懼€煎繀欏誨睘浜庡悓涓€涓灇涓劇被錛屽惁鍒欎細(xì)鎶涘嚭ClassCastException()寮傚父銆?鍏蜂綋鍙婧愪唬鐮?<br /> Color.RED.compareTo(Color.BLUE); //榪斿洖緇撴灉 -1<br /> values()鏂規(guī)硶錛?闈欐€佹柟娉曪紝榪斿洖涓€涓寘鍚叏閮ㄦ灇涓懼€肩殑鏁扮粍銆?br /> Color[] colors=Color.values();<br /> for(Color c:colors){<br /> System.out.print(c+","); <br /> }//榪斿洖緇撴灉錛歊ED,BLUE,BLACK YELLOW,GREEN,<br /> toString()鏂規(guī)硶錛?榪斿洖鏋氫婦甯擱噺鐨勫悕縐般€?br /> Color c=Color.RED;<br /> System.out.println(c);//榪斿洖緇撴灉: RED<br /> valueOf()鏂規(guī)硶錛?榪欎釜鏂規(guī)硶鍜宼oString鏂規(guī)硶鏄浉瀵瑰簲鐨勶紝榪斿洖甯︽寚瀹氬悕縐扮殑鎸囧畾鏋氫婦綾誨瀷鐨勬灇涓懼父閲忋€?br /> Color.valueOf("BLUE"); //榪斿洖緇撴灉: Color.BLUE<br /> equals()鏂規(guī)硶錛?姣旇緝涓や釜鏋氫婦綾誨璞＄殑寮曠敤銆?/span></p> <p><span style="font-family: 瀹嬩綋; color: red">鏋氫婦綾葷殑鍏蜂綋搴旂敤</span></p> <p><span style="font-family: 瀹嬩綋; font-size: 12pt">鏋氫婦綾誨彲浠ュ湪switch璇彞涓嬌鐢?/span></p> <ol type="1"> <li style="text-align: left; tab-stops: list 36.0pt" class="MsoNormal"><span style="font-family: 瀹嬩綋; font-size: 12pt">Color color=Color.RED; </span></li> <li style="text-align: left; tab-stops: list 36.0pt" class="MsoNormal"><span style="font-family: 瀹嬩綋; font-size: 12pt">switch(color){ </span></li> <li style="text-align: left; tab-stops: list 36.0pt" class="MsoNormal"><span style="font-family: 瀹嬩綋; font-size: 12pt"> case RED: System.out.println("it's red");break; </span></li> <li style="text-align: left; tab-stops: list 36.0pt" class="MsoNormal"><span style="font-family: 瀹嬩綋; font-size: 12pt"> case BLUE: System.out.println("it's blue");break; </span></li> <li style="text-align: left; tab-stops: list 36.0pt" class="MsoNormal"><span style="font-family: 瀹嬩綋; font-size: 12pt"> case BLACK: System.out.println("it's blue");break; </span></li> <li style="text-align: left; tab-stops: list 36.0pt" class="MsoNormal"><span style="font-family: 瀹嬩綋; font-size: 12pt">} </span></li> </ol> <p>-----------------------java<span style="font-family: 瀹嬩綋">鏋氫婦瀛︿範(fàn)蹇冨緱浠庡皬紼嬪簭鍑哄彂</span> ---------------------------</p> <p><span style="font-family: 瀹嬩綋">鍩烘湰鐨?/span>enum<span style="font-family: 瀹嬩綋">鐗規(guī)€?/span></p> <p style="text-align: left" class="MsoNormal" align="left"><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">public</span></strong><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">class</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> Test {</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><span style="font-family: 'Courier New'; color: #3f5fbf; font-size: 10pt">/**</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: #3f5fbf; font-size: 10pt"> * </span><strong><span style="font-family: 'Courier New'; color: #7f9fbf; font-size: 10pt">@param</span></strong><span style="font-family: 'Courier New'; color: #3f5fbf; font-size: 10pt"> args</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: #3f5fbf; font-size: 10pt"> */</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">enum</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> Shrubbery {</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">GROUND</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">, </span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">GRAWLING</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">, </span><em><span style="font-family: 'Courier New'; background: silver; color: #0000c0; font-size: 10pt">HANGING</span></em></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> }</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: #3f5fbf; font-size: 10pt">/**</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: #3f5fbf; font-size: 10pt"> * </span><span style="font-family: 瀹嬩綋; color: #3f5fbf; font-size: 10pt">鏋氫婦綾葷殑鍩虹鐭ヨ瘑</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: #3f5fbf; font-size: 10pt"> */</span></p> <p style="text-align: left" class="MsoNormal" align="left"><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">public</span></strong><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">static</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">void</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> bKOfEmun(){</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">for</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> (Shrubbery s : Shrubbery.<em>values</em>()) {</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">// ordinal() </span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">榪斿洖鏋氫婦涓殑浣嶇疆</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">濡?/span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">GROUND </span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鍦?/span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">0 </span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">浣嶇疆</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> System.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">out</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.println(s + </span><span style="font-family: 'Courier New'; color: #2a00ff; font-size: 10pt">"ordinal"</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> + s.ordinal());</span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">// </span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鍚嶇О</span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">+</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">浣嶇疆淇℃伅</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">// <u>compareto</u></span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">姣旇緝</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鏋氫婦綾誨瀷鎸夌収</span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt"> ordinal</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鐨勫€兼瘮杈?/span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">-1 0 1</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> System.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">out</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.print(s.compareTo(Shrubbery.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">GRAWLING</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">) + </span><span style="font-family: 'Courier New'; color: #2a00ff; font-size: 10pt">" "</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">);</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">// equals </span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鍜?/span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">== </span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鐪嬫灇涓懼€兼槸鍚︾浉鍚?/span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> System.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">out</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.print(s.equals(Shrubbery.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">GRAWLING</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">) + </span><span style="font-family: 'Courier New'; color: #2a00ff; font-size: 10pt">" "</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">);</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> System.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">out</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.println(s == Shrubbery.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">GRAWLING</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">);</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">// </span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">榪斿洖鏋氫婦鎵€鍦ㄧ殑</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">綾葷殑鍚嶇О銆?/span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> System.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">out</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.println(s.getDeclaringClass());</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">// name()</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鐩稿綋浜?/span><u><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">tostring</span></u><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">()</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">榪斿洖鏋氫婦鐨勫€?/span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> System.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">out</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.println(s.name());</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> System.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">out</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.println(</span><span style="font-family: 'Courier New'; color: #2a00ff; font-size: 10pt">"-----------------------"</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">);</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> }</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">for</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> (String s : </span><span style="font-family: 'Courier New'; color: #2a00ff; font-size: 10pt">"HANGING GRAWLING GROUND"</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.split(</span><span style="font-family: 'Courier New'; color: #2a00ff; font-size: 10pt">" "</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">)) {</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">// <u>valueof</u> </span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">榪斿洖鏋氫婦綾諱腑鍚嶇О涓?/span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt"> s</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鐨?/span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鏋氫婦瀵硅薄</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> Shrubbery shrub = Enum.<em>valueOf</em>(Shrubbery.</span><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">class</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt">, s);</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> System.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">out</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.println(shrub);</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> }</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">for</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> (Shrubbery s : Shrubbery.<em>values</em>()) {</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">// ordinal() </span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">榪斿洖鏋氫婦涓殑浣嶇疆</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">濡?/span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">GROUND </span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鍦?/span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">0 </span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">浣嶇疆</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> System.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">out</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.println(s + </span><span style="font-family: 'Courier New'; color: #2a00ff; font-size: 10pt">"ordinal"</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> + s.ordinal());</span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">// </span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鍚嶇О</span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">+</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">浣嶇疆淇℃伅</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">// <u>compareto</u></span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">姣旇緝</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鏋氫婦綾誨瀷鎸夌収</span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt"> ordinal</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鐨勫€兼瘮杈?/span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">-1 0 1</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> System.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">out</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.print(s.compareTo(Shrubbery.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">GRAWLING</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">) + </span><span style="font-family: 'Courier New'; color: #2a00ff; font-size: 10pt">" "</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">);</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">// equals </span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鍜?/span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">== </span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鐪嬫灇涓懼€兼槸鍚︾浉鍚?/span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> System.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">out</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.print(s.equals(Shrubbery.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">GRAWLING</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">) + </span><span style="font-family: 'Courier New'; color: #2a00ff; font-size: 10pt">" "</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">);</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> System.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">out</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.println(s == Shrubbery.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">GRAWLING</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">);</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">// </span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">榪斿洖鏋氫婦鎵€鍦ㄧ殑</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">綾葷殑鍚嶇О銆?/span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> System.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">out</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.println(s.getDeclaringClass());</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">// name()</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鐩稿綋浜?/span><u><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">tostring</span></u><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">()</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">榪斿洖鏋氫婦鐨勫€?/span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> System.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">out</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.println(s.name());</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> System.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">out</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.println(</span><span style="font-family: 'Courier New'; color: #2a00ff; font-size: 10pt">"-----------------------"</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">);</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> }</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">for</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> (String s : </span><span style="font-family: 'Courier New'; color: #2a00ff; font-size: 10pt">"HANGING GRAWLING GROUND"</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.split(</span><span style="font-family: 'Courier New'; color: #2a00ff; font-size: 10pt">" "</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">)) {</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">// <u>valueof</u> </span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">榪斿洖鏋氫婦綾諱腑鍚嶇О涓?/span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt"> s</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鐨?/span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鏋氫婦瀵硅薄</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> Shrubbery shrub = Enum.<em>valueOf</em>(Shrubbery.</span><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">class</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt">, s);</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> System.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">out</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.println(shrub);</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> }</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt">}</span></p> <p style="text-align: left" class="MsoNormal" align="left"><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">public</span></strong><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">static</span></strong><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">void</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> main(String[] args) {</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">// </span><strong><span style="font-family: 'Courier New'; color: #7f9fbf; font-size: 10pt">TODO</span></strong><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt"> Auto-generated method stub</span></p> <p style="text-align: left" class="MsoNormal" align="left"><em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">bKOfEmun</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">();</span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">//</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鏋氫婦綾葷殑</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鍩虹鐭ヨ瘑</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt">}</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt">}</span></p> <p><strong> </strong></p> <p><span style="font-family: 瀹嬩綋">鏋氫婦涓～鍏ユ柟娉?/span></p> <p><span style="font-family: 瀹嬩綋">涓€鑸鏉ユ垜浠笇鏈涙瘡涓灇涓懼疄渚嬭兘澶熻繑鍥炲鑷韓鐨勬弿榪幫紝鑰屼笉浠呬粎鏄粯璁?/span>toString()<span style="font-family: 瀹嬩綋">瀹炵幇錛岃繖鍙兘榪斿洖鏋氫婦瀹炰緥鐨勫悕瀛椼€備負(fù)姝ゆ垜浠彲浠ユ彁渚涗竴涓瀯閫犲櫒錛屼笓闂ㄨ礋璐ｅ鐞嗚繖涓澶栫殑淇℃伅錛岀劧鍚庢坊鍔犱竴涓柟娉曪紝榪斿洖榪欎釜鎻忚堪淇℃伅銆?/span></p> <p><span style="font-family: 瀹嬩綋">鏋勯€犺繃紼嬪涓?/span> <span style="font-family: 瀹嬩綋">錛?/span></p> <p><span style="font-family: 瀹嬩綋">棣栧厛</span> <span style="font-family: 瀹嬩綋">寤虹珛鏋氫婦</span></p> <p style="text-align: left" class="MsoNormal" align="left"><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">public</span></strong><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">enum</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> OzWitch {</span></p> <p style="text-align: left" class="MsoNormal" align="left"><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">WEST</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">,</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">NORTH</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">,</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">EAST</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">,</span><em><span style="font-family: 'Courier New'; background: silver; color: #0000c0; font-size: 10pt">SOUTH</span></em></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt">}</span></p> <p><span style="font-family: 瀹嬩綋">鐒跺悗鍒涘緩鎻忚堪淇℃伅</span></p> <p style="text-align: left" class="MsoNormal" align="left"><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">public</span></strong><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">enum</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> OzWitch {</span></p> <p style="text-align: left" class="MsoNormal" align="left"><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">WEST</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">,</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">NORTH</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">,</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">EAST</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">,</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">SOUTH</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">;</span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">//</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">娉ㄦ剰鍒嗗彿</span></p> <p style="text-align: left" class="MsoNormal" align="left"><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">private</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> String </span><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">description</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">;</span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">//</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鎻忚堪淇℃伅</span></p> <p style="text-align: left" class="MsoNormal" align="left"><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">public</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> String getDescription() {</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">return</span></strong><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">description</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">;</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt">}</span></p> <p style="text-align: left" class="MsoNormal" align="left"><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">public</span></strong><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">static</span></strong><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">void</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> main(String[] args) {</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt">}</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt">}</span></p> <p><span style="font-family: 瀹嬩綋">鍒涘緩鏋勯€犲櫒</span></p> <p style="text-align: left" class="MsoNormal" align="left"><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">public</span></strong><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">enum</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> OzWitch {</span></p> <p style="text-align: left" class="MsoNormal" align="left"><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">WEST</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">(</span><span style="font-family: 'Courier New'; color: #2a00ff; font-size: 10pt">"1111"</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">),</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">NORTH</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">(</span><span style="font-family: 'Courier New'; color: #2a00ff; font-size: 10pt">"2222"</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">),</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">EAST</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">(</span><span style="font-family: 'Courier New'; color: #2a00ff; font-size: 10pt">"3333"</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">),</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">SOUTH</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">(</span><span style="font-family: 'Courier New'; color: #2a00ff; font-size: 10pt">"4444"</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">);</span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">//</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">娉ㄦ剰鍒嗗彿</span></p> <p style="text-align: left" class="MsoNormal" align="left"><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">private</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> String </span><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">description</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">;</span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">//</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">鎻忚堪淇℃伅</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt">OzWitch(String description) {</span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">//</span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">娉ㄦ剰鍙兘涓?/span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt"> private </span><span style="font-family: 瀹嬩綋; color: #3f7f5f; font-size: 10pt">榪欓噷涓庢甯哥被鐨勬瀯閫犲嚱鏁版湁鍖哄埆</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">this</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.</span><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">description</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">=description;</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt">}</span></p> <p style="text-align: left" class="MsoNormal" align="left"><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">public</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> String getDescription() {</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">return</span></strong><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">description</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">;</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt">}</span></p> <p style="text-align: left" class="MsoNormal" align="left"><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">public</span></strong><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">static</span></strong><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">void</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> main(String[] args) {</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">for</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt">(OzWitch <span style="background: yellow">o</span>:OzWitch.<em>values</em>()){</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> System.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">out</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.println(<span style="background: silver">o</span>.name()+</span><span style="font-family: 'Courier New'; color: #2a00ff; font-size: 10pt">":"</span><span style="font-family: 'Courier New'; color: black; font-size: 10pt">+<span style="background: silver">o</span>.getDescription());</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> }</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt">}</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt">}</span></p> <p><span style="font-family: 瀹嬩綋">瑕嗙洊</span>enum<span style="font-family: 瀹嬩綋">鏂規(guī)硶錛氭紼嬪簭鐩殑鍦ㄤ簬鎶婃灇涓懼璞＄殑棣栧瓧姣嶄繚鐣欏ぇ鍐欙紝鍏朵綑灝忓啓</span></p> <p style="text-align: left" class="MsoNormal" align="left"><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">public</span></strong><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">enum</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> SpaceShip {</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">SCOUT</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">,</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">CARGO</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">,</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">TRANSPORT</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">,</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">CRUISER</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">,</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">BATTLESHIP</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">,</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">MOTHERSHIP</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">;</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><span style="font-family: 'Courier New'; color: #646464; font-size: 10pt">@Override</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">public</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> String toString() {</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt">// </span><strong><span style="font-family: 'Courier New'; color: #7f9fbf; font-size: 10pt">TODO</span></strong><span style="font-family: 'Courier New'; color: #3f7f5f; font-size: 10pt"> Auto-generated method stub</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> String id=name();</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> String lower=name().substring(1).toLowerCase();</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">return</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> id.charAt(0)+lower;</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> }</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">public</span></strong><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">static</span></strong><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">void</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> main(String[] args) {</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span><strong><span style="font-family: 'Courier New'; color: #7f0055; font-size: 10pt">for</span></strong><span style="font-family: 'Courier New'; color: black; font-size: 10pt">(SpaceShip s:SpaceShip.<em>values</em>()){</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> </span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> System.</span><em><span style="font-family: 'Courier New'; color: #0000c0; font-size: 10pt">out</span></em><span style="font-family: 'Courier New'; color: black; font-size: 10pt">.println(s);</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> }</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; color: black; font-size: 10pt"> }</span></p> <p style="text-align: left" class="MsoNormal" align="left"><span style="font-family: 'Courier New'; 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