Debian – How to remove Java in Debian

Follow the instructions:

1. You have to download required jdk version from the site: http://java.sun.com/javase/downloads/index.jsp

Put the downloaded jdk into your required folder,

Here, I am creating a new folder as a java inside the /etc folder and placing my jdk inside the /etc/java folder. It will look like /etc/java/jdk-6u21-linux-i586.bin

Now change the permission of your file through chmod to accessing installer.txt file while extracting it. Change the permission by typing the following command on your terminal. sudo chmod +x jdk-6u21-linux-i586.bin

Now execute the file by typing this command on your terminal like sudo ./jdk-6u21-linux-i586.bin

It will create a folder inside the /etc/java/ and it will looks like /etc/java/jdk1.6.0_21

And our java is install now we our going to setting the class path of our java for this what we have to do is. Just type this command on your terminal sudo gedit ~/.bashrc and it will open a editor, and now we have to put export JAVA_HOME=/etc/java/jdk1.6.0_21 at the last line of our editor and after it we have to do is export PATH=$PATH:$JAVA_HOME/bin

It will looks like : export JAVA_HOME=/etc/java/jdk1.6.0_21export PATH=$PATH:$JAVA_HOME/bin

Now save it and close it. And restart your system or type it in your terminal source ~/.bashrc

Finally, our java is ready just type java -version on your terminal and it will return java version "1.6.0_21" Java(TM) SE Runtime Environment (build 1.6.0_21-b06) Java HotSpot(TM) Server VM (build 17.0-b16, mixed mode)

Manually clear you Java applet cache.

Normally you would open the control panel applet to find that path, but since you can't, you'll have to do a little hunting.

On Windows Vista+ it's usually in

C:\Users\<your user name>\AppData\LocalLow\Sun\Java\Deployment\cache

If that doesn't work, completely uninstall Java via Add/Remove programs, ensure the C:\Users\<your user name>\AppData\LocalLow\Sun folder is deleted (if not, then delete it), and then reinstall Java.