Linux安装jdk

1. download jdk-8u101-linux-x64.rpm

2. upload to /usr/local

3. intall by rpm command:
   rpm -ivh jdk-8u101-linux-x64.rpm
   (jdk has installed to /usr/java)

4. config java_home and path by following command
   cd ~
   vi .bashrc
   add new line “export JAVA_HOME=/usr/java/latest”
   add new line “export PATH=PATH:JAVA_HOME/bin”

5. take effert
   source .bashrc

6. test
   java -version

how to uninstall jdk:
1. check what jdk is installed
rpm -qa | grep jdk
(for example, the output is jdk-1.6.0_22-fcs)

1. uninstall jdk
   rpm -e –nodeps jdk-1.6.0_22-fcs