ï»??xml version="1.0" encoding="utf-8" standalone="yes"?>成年在线电影,国产视色精品亚洲一区二区,欧美精三区欧美精三区http://www.aygfsteel.com/xiaofei-suman/category/50872.htmlzh-cnFri, 24 Feb 2012 19:10:35 GMTFri, 24 Feb 2012 19:10:35 GMT60数据库_oracle面试é¢?/title><link>http://www.aygfsteel.com/xiaofei-suman/articles/370212.html</link><dc:creator>齐纳ž®”多</dc:creator><author>齐纳ž®”多</author><pubDate>Fri, 17 Feb 2012 12:07:00 GMT</pubDate><guid>http://www.aygfsteel.com/xiaofei-suman/articles/370212.html</guid><description><![CDATA[ <img src ="http://www.aygfsteel.com/xiaofei-suman/aggbug/370212.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/xiaofei-suman/" target="_blank">齐纳ž®”多</a> 2012-02-17 20:07 <a href="http://www.aygfsteel.com/xiaofei-suman/articles/370212.html#Feedback" target="_blank" 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GMT</pubDate><guid>http://www.aygfsteel.com/xiaofei-suman/articles/370211.html</guid><wfw:comment>http://www.aygfsteel.com/xiaofei-suman/comments/370211.html</wfw:comment><comments>http://www.aygfsteel.com/xiaofei-suman/articles/370211.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/xiaofei-suman/comments/commentRss/370211.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/xiaofei-suman/services/trackbacks/370211.html</trackback:ping><description><![CDATA[<div>22222</div> <img src ="http://www.aygfsteel.com/xiaofei-suman/aggbug/370211.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/xiaofei-suman/" target="_blank">齐纳ž®”多</a> 2012-02-17 20:06 <a href="http://www.aygfsteel.com/xiaofei-suman/articles/370211.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>struts2面试é¢?/title><link>http://www.aygfsteel.com/xiaofei-suman/articles/370208.html</link><dc:creator>齐纳ž®”多</dc:creator><author>齐纳ž®”多</author><pubDate>Fri, 17 Feb 2012 12:05:00 GMT</pubDate><guid>http://www.aygfsteel.com/xiaofei-suman/articles/370208.html</guid><wfw:comment>http://www.aygfsteel.com/xiaofei-suman/comments/370208.html</wfw:comment><comments>http://www.aygfsteel.com/xiaofei-suman/articles/370208.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/xiaofei-suman/comments/commentRss/370208.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/xiaofei-suman/services/trackbacks/370208.html</trackback:ping><description><![CDATA[ <img src ="http://www.aygfsteel.com/xiaofei-suman/aggbug/370208.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.aygfsteel.com/xiaofei-suman/" target="_blank">齐纳ž®”多</a> 2012-02-17 20:05 <a href="http://www.aygfsteel.com/xiaofei-suman/articles/370208.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>coreJava面试é¢?/title><link>http://www.aygfsteel.com/xiaofei-suman/articles/370096.html</link><dc:creator>齐纳ž®”多</dc:creator><author>齐纳ž®”多</author><pubDate>Thu, 16 Feb 2012 06:10:00 GMT</pubDate><guid>http://www.aygfsteel.com/xiaofei-suman/articles/370096.html</guid><wfw:comment>http://www.aygfsteel.com/xiaofei-suman/comments/370096.html</wfw:comment><comments>http://www.aygfsteel.com/xiaofei-suman/articles/370096.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/xiaofei-suman/comments/commentRss/370096.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/xiaofei-suman/services/trackbacks/370096.html</trackback:ping><description><![CDATA[<div>1.异常处理机制的简单原理和应用<br />2.垃圾回收的优点和原理,òq¶è€ƒè™‘2¿Uå›žæ”¶æœºåˆ?br />3.¾U¿ç¨‹åŒæ­¥çš„æ–¹æ³?br />4.Error与Exception有什么区åˆ?br />5.javaä¸­ä¸€ä¸ªç±»è¢«å£°æ˜ŽäØ“final¾cÕdž‹.<br />6.heapå’Œstack有什么区åˆ?br />7.¾pȝ»Ÿè¦ä‹É用超大整敎ͼˆ­‘…过long长度范围åQ‰ï¼Œè¯·ä½ è®¾è®¡ä¸€ä¸ªæ•°æ®ç»“构来存储˜q™ç§­‘…大型数字以及设计一¿Uç®—法来实现­‘…大整数加法˜qç®—<br />8.设计一个图形系¾lŸï¼Œè¯·ä½ è®¾è®¡åŸºæœ¬çš„图形元ä»?Point,Line,Rectangle,Triangle)的简单实çŽ?br />9.final, finally, finalize的区åˆ?br />10.Anonymous Inner Class (匿名内部¾c? 是否可以extends(¾l§æ‰¿)其它¾c»ï¼Œæ˜¯å¦å¯ä»¥implements(实现)interface(接口)<br />11.Static Nested Class å’?Inner Class的不å?br />12.&å’?amp;&区别<br />13.HashMapå’ŒHashtable的区åˆ?br />14.Collection å’?Collections的区åˆ?br />15.GC是什ä¹? ä¸ÞZ»€ä¹ˆè¦æœ‰GC<br />16.String s = new String("xyz");创徏了几个String Object<br />17.sleep() å’?wait() 有什么区åˆ?br />18.short s1 = 1; s1 = s1 + 1;有什么错? short s1 = 1; s1 += 1;有什么错?<br />19.Java有没有goto?<br />20.Set里的元素是不能重复的åQŒé‚£ä¹ˆç”¨ä»€ä¹ˆæ–¹æ³•来区分重复与否å‘? 是用==˜q˜æ˜¯equals()? 它们有何区别?<br />21.最常见到的runtime exception<br />22.abstract classå’Œinterface有什么区åˆ?<br />23.abstractçš„method是否可同时是static,是否可同时是nativeåQŒæ˜¯å¦å¯åŒæ—¶æ˜¯synchronized<br />24.接口是否可ç‘ô承接å? 抽象¾cÀL˜¯å¦å¯å®žçް(implements)接口? 抽象¾cÀL˜¯å¦å¯¾l§æ‰¿å®žä½“¾c?concrete class)? <br />25.构造器Constructor是否可被override<br />26.当一个线½E‹è¿›å…¥ä¸€ä¸ªå¯¹è±¡çš„一个synchronizedæ–ÒŽ³•后,其它¾U¿ç¨‹æ˜¯å¦å¯è¿›å…¥æ­¤å¯¹è±¡çš„其它方æ³?br />27.用最有效率的æ–ÒŽ³•½Ž—出2乘以8½{‰æ–¼å‡?br />28.两个对象值相å?x.equals(y) == true)åQŒä½†å´å¯æœ‰ä¸åŒçš„hash codeåQŒè¿™å¥è¯å¯¹ä¸å¯?<br />29.当一个对象被当作参数传递到一个方法后åQŒæ­¤æ–ÒŽ³•可改变这个对象的属性,òq¶å¯˜q”回变化后的¾l“æžœåQŒé‚£ä¹ˆè¿™é‡Œåˆ°åº•是å€ég¼ é€’还是引用传é€?br />30.swtich是否能作用在byte上,是否能作用在long上,是否能作用在Stringä¸?int、short、char、byte)<br />31.Singleton<br />32.Hashtableå’ŒHashMap区别<br />33.JVM加蝲classæ–‡äšg的原理机åˆ?br /> <div id="wmqeeuq" class="content"><pre id="best-answer-content" class="reply-text mb10">    åœ¨Java中,¾c»è£…载器把一个类装入Java虚拟æœÞZ¸­åQŒè¦¾lè¿‡ä¸‰ä¸ªæ­¥éª¤æ¥å®Œæˆï¼šè£…蝲、链接和初始化,其中链接又可以分成校验、准备、解æž?     è£…蝲åQšæŸ¥æ‰‘Ö’Œå¯¼å…¥¾cÀLˆ–接口的二˜q›åˆ¶æ•°æ®åQ?     é“¾æŽ¥åQšæ‰§è¡Œä¸‹é¢çš„æ ¡éªŒã€å‡†å¤‡å’Œè§£æžæ­¥éª¤åQŒå…¶ä¸­è§£æžæ­¥éª¤æ˜¯å¯ä»¥é€‰æ‹©çš„ï¼›          校验åQšæ£€æŸ¥å¯¼å…¥ç±»æˆ–æŽ¥å£çš„äºŒè¿›åˆ¶æ•°æ®çš„æ­£ç¡®æ€§ï¼›     å‡†å¤‡åQšç»™¾cȝš„é™æ€å˜é‡åˆ†é…åÆˆåˆå§‹åŒ–å­˜å‚¨ç©ºé—ß_¼›     è§£æžåQšå°†½W¦å·å¼•用转成直接引用åQ?         åˆå§‹åŒ–:‹È€‹zȝ±»çš„静态变é‡?初始化Java代码和静态Java代码å?br /></pre></div> <div id="wmqeeuq" class="content"><pre class="reply-text mb10">34.举例说明一个典型的垃圾回收½Ž—法</pre><pre class="reply-text mb10"> 1) <span style="color: #ff00ff">引用计数</span>åQ?</pre><pre class="reply-text mb10"> 要求堆中的每个对象实例都有一个称为引用计数的字段åQŒå½“分配时计æ•?1、超出或销毁时-1åQŒå½“引用计数ä¸?æ—¶å…¶½Iºé—´å¯å›žæ”¶ã€?br />          引用计数优点åQšå›žæ”‰™€Ÿåº¦å¿«ï¼›</pre><pre class="reply-text mb10"> ¾~ºç‚¹åQšå¼•赯‚¿è¡Œæ—¶¾pȝ»Ÿæ€§èƒ½ä¸‹é™ã€?br />          2) <span style="color: #ff00ff">标记òq¶æ¸…é™?/span><span style="color: #000000">åQ?/span></pre><pre><span style="color: #ff00ff">          </span>要求每个对象都包含一个位字段åQŒç§°ä¸ºæ ‡è®îC½åQŒæˆ–在算法运行时建立一个外部数¾l„以存放标记位。该½Ž—法从遍历堆中所有已分配的内存块开始,重新讄¡½®å—的标记位,‹‚€æŸ¥æ‰€æœ‰æŒ‡å‘堆中对象的字段和变量,ž®†è¢«å¼•用对象的标è®îC½è®„¡½®ä¸ºçœŸåQŒç„¶åŽæ‰¾å‡ºæ‰€æœ‰æœªæ ‡è®°å¯¹è±¡åQŒå°†å…¶æ”¾åˆ°è‡ªç”±å—列表中来回收½Iºé—´ã€?br />          标记òq¶æ¸…除优点:存储开销较低且不会媄响运行时的执行性能åQ?/pre><pre>          ¾~ºç‚¹åQšå½“内存垃圾攉™›†å™¨è¿è¡Œæ—¶å¯èƒ½ä¼šå ç”¨å¾ˆé•¿æ—¶é—´ã€?/pre><pre class="reply-text mb10"><br />35.è¯ïL”¨java写二叉树½Ž—法åQŒå®žçŽ°æ·»åŠ æ•°æ®åŞ成二叉树功能åQŒåƈ以先序的方式打印出来</pre><pre class="reply-text mb10">36.写一个java½E‹åºå®žçް¾U¿ç¨‹˜qžæŽ¥æ± åŠŸèƒ?/pre><pre class="reply-text mb10">‹¹ç¨‹å¦‚下åQšå…ˆå¯åŠ¨è‹¥å¹²ä¸ªçº¿½E‹ï¼Œòq¶è®©˜q™äº›¾U¿ç¨‹å¤„于睡眠状态,当有客户è¯äh±‚æ—Óž¼Œž®×ƒ¼šå”¤é†’池中的一个睡眠线½E‹ï¼Œæ¥å¤„理用戯‚¯·æ±‚。处理完成以后,¾U¿ç¨‹åˆå¤„于睡眠状态ã€?/pre><pre class="reply-text mb10">37.数据库连接池原理</pre><pre class="reply-text mb10">数据库连接是关键的有限的昂贵的资源,每个数据库连接对象都对应一个物理数据库˜qžæŽ¥åQŒæ¯‹Æ¡æ‰“开一个物理连接ä‹É用后都得关闭˜q™ä¸ª˜qžæŽ¥åQŒè¿™ž®±é€ æˆäº†æ€§èƒ½åº•下</pre><pre class="reply-text mb10">解决æ–ÒŽ¡ˆåQšåœ¨åº”用½E‹åºå¯åЍæ—Óž¼Œå»ºç«‹­‘›_¤Ÿå¤šçš„æ•°æ®åº“连接,òq¶å°†˜q™äº›˜qžæŽ¥¾l„成一个连接池åQŒç”±åº”用½E‹åºå¯Òޱ ä¸­çš„˜qžæŽ¥åŠ¨æ€çš„ç”Œ™¯·ã€åˆ†é…ã€é‡Šæ”¾ã€?/pre><pre class="reply-text mb10">对于多于池中˜qžæŽ¥æ•°çš„òq¶å‘è¯äh±‚、应该在è¯äh±‚队列中排队等待,òq¶ä¸”应用½E‹åºå¯ä»¥æ ÒŽ®æ± ä¸­˜qžæŽ¥çš„ä‹É用率åQŒåŠ¨æ€åœ°å¢žåŠ æˆ–è€…å‡ž®‘池中的˜qžæŽ¥æ•?/pre><pre class="reply-text mb10">åQˆæœ€å¤§è¿žæŽ¥æ•°ã€æœ€ž®è¿žæŽ¥æ•°åQ?/pre><pre class="reply-text mb10">38.¾l™å®šä¸€ä¸ªC语言函数åQŒè¦æ±‚实现在java¾cÖM¸­˜q›è¡Œè°ƒç”¨</pre><pre class="reply-text mb10">39.¾~–一ŒDµä»£ç ï¼Œå®žçŽ°åœ¨æŽ§åˆ¶å°è¾“å…¥ä¸€¾l„数字后åQŒæŽ’序后在控制台输出</pre><pre class="reply-text mb10">40.列出某文件夹下的所有文ä»?/pre><pre class="reply-text mb10">41.调用¾pȝ»Ÿå‘½ä×o实现删除文äšg的操ä½?/pre><pre class="reply-text mb10">42.实现从文件中一‹Æ¡è¯»å‡ÞZ¸€ä¸ªå­—½W¦çš„æ“ä½œ</pre><pre class="reply-text mb10">43.列出一些控制流½E‹çš„æ–ÒŽ³•</pre><pre class="reply-text mb10">44.多线½E‹æœ‰å“ªäº›çжæ€?/pre><pre class="reply-text mb10">45.¾~–写了一个服务器端的½E‹åºå®žçŽ°åœ¨å®¢æˆïL«¯è¾“入字符然后在控制台上显½Cºï¼Œç›´åˆ°è¾“å…¥"END"为止åQŒè®©ä½ å†™å‡ºå®¢æˆïL«¯çš„程åº?/pre><pre class="reply-text mb10">46.作用域public,private,protected,以及不写时的区别 </pre><pre class="reply-text mb10">47.ArrayListå’ŒVector的区åˆ?HashMapå’ŒHashtable的区åˆ?</pre><pre class="reply-text mb10">48.char型变量中能不能存贮一个中文汉å­?ä¸ÞZ»€ä¹?</pre><pre class="reply-text mb10">49.多线½E‹æœ‰å‡ ç§å®žçްæ–ÒŽ³•,都是什ä¹?同步有几¿Uå®žçŽ°æ–¹æ³?都是什ä¹? </pre><pre class="reply-text mb10">50.垃圾回收机制,如何优化½E‹åº</pre><pre class="reply-text mb10">51.floatåž‹float f=3.4是否正确</pre><pre class="reply-text mb10">52.介绍JAVA中的Collection FrameWork(包括如何写自å·Þqš„æ•°æ®¾l“æž„)? </pre><pre class="reply-text mb10">53.Java中异常处理机åˆÓž¼Œäº‹äšg机制</pre><pre class="reply-text mb10">54.JAVA中的多态与¾l§æ‰¿</pre><pre class="reply-text mb10">55.现在输入n个数字,以逗号,选择升序、降序排列ã€?/pre><pre class="reply-text mb10">56.Java 的通信¾~–程åQŒç¼–½E‹é¢˜(或问½{?åQŒç”¨JAVA SOCKET¾~–程åQŒè¯»æœåŠ¡å™¨å‡ ä¸ªå­—½W¦ï¼Œå†å†™å…¥æœ¬åœ°æ˜¾½C?/pre><pre class="reply-text mb10">57.在COLLECTION框架中,实现比较要实çŽîC»€ä¹ˆæ ·çš„æŽ¥å?/pre><pre class="reply-text mb10">58.JAVA多线½E‹ç¼–½E‹ã€?用JAVA写一个多¾U¿ç¨‹½E‹åºåQŒå¦‚写四个线½E‹ï¼ŒäºŒä¸ªåŠ?åQŒäºŒä¸ªå¯¹ä¸€ä¸ªå˜é‡å‡ä¸€åQŒè¾“出ã€?/pre><pre class="reply-text mb10">59.STRING与STRINGBUFFER的区åˆ?/pre><pre class="reply-text mb10"><strong>60.hashmap的内部实现机åˆÓž¼Œhash是怎样实现的,什么时候rehash <br /><br />62.java的内存管ç?<br />63.分布式缓存的内存½Ž¡ç†åQŒå¦‚何管理和释放不断膨胀的sessionåQŒmemcache是否熟悉 <br />64.oralce的底层管ç?怎样让查询快åQŒæ’入慢) <br />65.java底层是怎样å¯ÒŽ–‡ä»¶æ“ä½œçš„ <br /><br />66.研究了哪些框架的源码 <br />67.òq¶å‘问题åQŒé”åQŒæ€Žä¹ˆå¤„理死锁åQŒè„æ•°æ®å¤„理 <br />68.性能问题 <br /><br />69.equalså’Œhashcode˜q™äº›æ–ÒŽ³•怎么使用çš?<br />70.javaçš„NIO </strong><br /><br /><br /></pre><pre class="reply-text mb10"><br /><br /><br /><br /><br /><br /><br /><br /><br /> </pre></div></div> <img src ="http://www.aygfsteel.com/xiaofei-suman/aggbug/370096.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" 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