安裝sun-java6(http://wiki.ubuntu.org.cn/Sun-java6)
添加partner源 sudo add-apt-repository "deb http://archive.canonical.com/ubuntu maverick partner"
(註: 如果系統提示沒有add-apt-repository命令,則需要先安裝python-software-properties,命令sudo apt-get install python-software-properties。另外,有些版本的ubuntu即使安裝了python-software-properties也無add-apt-repository命令,此時需要手動添加此行"deb http://archive.canonical.com/ubuntu maverick partner"到/etc/apt/sources.list檔案中。)
更新系統: sudo apt-get update
安裝jre: sudo apt-get install sun-java6-jre sun-java6-plugin
安裝jdk: sudo apt-get install sun-java6-jdk sun-java6-plugin
查看版本資訊: java -version
設為預設Java: sudo update-alternatives --config java
配 置
(1) 開啟etc/environment:sudo gedit /etc/environment
加入:JAVA_HOME=/usr/lib/jvm/java6
CLASSPATH=/usr/lib/jvm/java6/lib
(2) 開啟etc/profile:sudo gedit /etc/profile
加入:export CLASSPATH=.:$JAVA_HOME/lib
export PATH=$JAVA_HOME/bin:$PATH
OK~!