(1)下載jdk
jdk-1_5_0_09-linux-i586.bin
(2)安裝jdk
shell> ./jdk-1_5_0_09-linux-i586.bin
shell> ln -s jdk-1_5_0_09 ?java
(3)設置環境變量shell> vi /etc/profile
添加以下內容：
JAVA_HOME=/usr/local/java
JRE=$JAVA_HOME/jre?
PATH=$JAVA_HOME/bin:$JRE/bin:$PATH?
CLASSPATH=.:$JAVA_HOME/bin/tools.jar:$JAVA_HOME/lib/dt.jar?
export?JAVA_HOME?JRE?CLASSPATH?PATH?