Ubuntu下手工安装JDK
发文时间：update-alternatives --config java
?最后java -version一把，或写个java例子试一下~
?
?
?
所有用到的命令
sudochmod u+x ./jdk-6u24-linux-i586.bin
sudo./jdk-6u24-linux-i586.bin
sudoln -s ./jdk1.6.0_24/ ./jdk1.6
sudo gedit /etc/profile
?
sudoupdate-alternatives --install /usr/bin/java java/home/lcy/opt/jdk1.6/bin/java 300
sudo update-alternatives--install /usr/bin/javac javac /home/lcy/opt/jdk1.6/bin/javac 300
update-alternatives--config java
?
java-version
?
参考：https://help.ubuntu.com/community/Java
