Java Path on Ubuntu 20.04 - Shell/Bash

Java is a popular programming language and is widely used for building applications. If you are working on Ubuntu 20.04 and want to develop Java applications, you need to have the correct Java path. In this guide, we will show you how to set up the Java path on Ubuntu 20.04 using Shell/Bash.

Step 1: Check Java Installation

Before setting up the Java path on Ubuntu, ensure that Java is already installed on your system. You can do this using the following command:

java -version

If Java is installed on your system, you will see the Java version and other details displayed in the terminal.

Step 2: Get Java Path

Now that Java is installed, you need to check its path on your system. This can be done using the which command.

which java

This command will display the location of the Java executable file.

Step 3: Set Java Path

To set the Java path on your system, you need to edit the .bashrc file located in your home directory.

nano ~/.bashrc

Add the following lines at the end of the .bashrc file:

JAVA_HOME=/usr/lib/jvm/java-11-openjdk-amd64/bin
export PATH=$PATH:$JAVA_HOME

The JAVA_HOME variable should point to the Java installation directory on your system, while the PATH variable should include the JAVA_HOME location.

Step 4: Apply Changes and Verify

Once you have edited the .bashrc file, save the changes and close the editor. Apply the changes by running the following command:

source ~/.bashrc

Finally, verify that the Java path is correctly set by running the java command again.

java -version

This should again display the Java version and other details on your terminal.

That's it! You have successfully set up the Java path on Ubuntu 20.04 using Shell/Bash. Happy coding!