When I run which java command in my Ubuntu, it tells /usr/bin/java.
I initially installed java using sudo apt-get install ... command. Using this command where does it install all java components?
In my system in /usr/lib/jvm i see the following listings:
java-1.5.0-gcj-4.8-amd64 java-1.7.0-openjdk-amd64 java-7-openjdk-amd64
I want to completely remove Java, I tried Googling, but the instructions used in didn't work. Can anyone help me do this?
/usr/bin/java is a link to the current alternative of /usr/bin/java, you can reconfigure the default java version(including javac and whatnot) by using update-java-alternatives. If you want to reconfigure alternatives for a different debian package you can use update-alternatives --config {package} instead.
You probably don't want to remove Java, but maybe you want to remove some of the older versions.
If you do want to remove Java 6 you can run
sudo apt-get remove openjdk-6*
Or to remove Java, but i don't recommend doing this.
sudo apt-get remove openjdk*
