在 Ubuntu 9.10 Server 上安装 JDK 1.5

divine@ubuntu:~$sudo update-alternatives --install /usr/bin/java java /usr/java/jdk1.5.0_22/bin/java 300 divine@ubuntu:~$sudo update-alternatives --install /usr/bin/javac javac /usr/java/jdk1.5.0_22/bin/javac 300