How to Set JAVA_HOME Environment Path in Ubuntu

Today’s tutorial will look at how to set the Java environment path in Ubuntu. Ubuntu installs openjdk6 to /usr/lib/jvm/java-6-openjdk path.

Therefore, the bin will be in your system’s directory /usr/lib/jvm/java-6-openjdk/bin. In most cases, the java and other associated executables have their classpath automatically configured.

Set JAVA_HOME Environment Path in Ubuntu

If you are starting, we suggest you use Bash rather than other shells. To open Bash, all you have to do is type in bash.

1. First, open the file named .bash_profile by logging into your account.

   $ vi ~/.bash_profile
   

2. Use the following syntax to set the JAVA_HOME environment variable: export JAVA_HOME=path-to-java>. You need to change your path to the following if it is now set to /usr/java/jdk1.5.0 07/bin/java.

   export JAVA_HOME=/usr/java/jdk1.5.0_07/bin/java
   

3. Add the following to set Path.

   export PATH=$PATH:/usr/java/jdk1.5.0_07/bin
   

   Simply entering export will confirm that the paths are correct.

4. Make sure you save your changes and then close the file. Log out of your account and then log in to view the updated information.

5. Alternately, you can activate the updated path settings immediately by typing the command that is shown below.

   $ . ~/.bash_profile
   

6. Use the following to validate your updated configuration.

   $ echo $JAVA_HOME
   $ echo $PATH