Uninstall JDK and its environment variables under Ubuntu

Reference text: Install and delete JDK6 under Ubuntu10.04

I really experienced one, removed the jdk1.8.0_25, installed the java_ee_sdk-7u1.zip, found no JDK, and then I installed the jdk1.8 once.

1, delete the JDK directory

sudo rm-rf/usr/local/javadevelopment/jdk1.8.0_25

2. Delete environment variables

Open the configuration environment variable file,/etc under the profile or BASH.BASHRC, I choose BASH.BASHRC here

sudo vim/etc/bash.bashrc

Delete the following command entered, enter "I" to insert mode, switch to edit mode after removing the command, enter ": Wq" Save exit

#set Java Environment
export java_home=/usr/local/javadevelopment/jdk1.8.0_25
export jre_home= $JAVA _home/ Jdk1.8.0_25/jre
export classpath=.: $JAVA _home/lib: $JRE _home/lib
Export path=/usr/local/java/jdk1.8.0_25/ Bin: $PATH