Step-by-Step Guide to Installing the Full Version of JDK on Linux with Non-Headless Support

How to Install JDK on Linux Full Version Not Headless

Installing the Java Development Kit (JDK) on Linux is a crucial step for any developer looking to work with Java applications. This article will guide you through the process of installing the full version of JDK on a Linux system, ensuring that you have all the necessary components for Java development without any headless limitations. Whether you are a beginner or an experienced developer, following these steps will help you get up and running with Java development on your Linux machine.

1. Check System Requirements

Before installing the JDK, it is essential to ensure that your Linux system meets the minimum requirements. These include a compatible Linux distribution, a sufficient amount of disk space, and a compatible processor. You can check your system’s compatibility by visiting the official Oracle website or the website of the JDK distribution you plan to install.

2. Update System Packages

To ensure that your system has all the necessary dependencies for the JDK installation, it is recommended to update your system packages. Open your terminal and run the following command:

“`
sudo apt update
sudo apt upgrade
“`

3. Install Java Package Manager

The Java Package Manager (JDK) is a tool that helps you manage Java packages on your system. To install it, run the following command:

“`
sudo apt install openjdk-11-jdk
“`

Replace `11` with the version of JDK you wish to install. If you prefer to install OpenJDK, you can use the following command:

“`
sudo apt install openjdk-11-jdk-headless
“`

4. Verify JDK Installation

After the installation process is complete, you can verify that the JDK has been installed correctly by running the following command:

“`
java -version
“`

This command will display the version of the JDK installed on your system. If the command is successful, you should see the version number and other details about the installed JDK.

5. Set Java Environment Variables

To ensure that your system recognizes the JDK and uses it for Java applications, you need to set the Java environment variables. Open your terminal and edit the `~/.bashrc` file using a text editor like `nano`:

“`
sudo nano ~/.bashrc
“`

Add the following lines to the end of the file:

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

Replace `/usr/lib/jvm/java-11-openjdk-amd64` with the path to your JDK installation. Save and close the file.

6. Source the BashRC File

To apply the changes to your current session, source the `~/.bashrc` file:

“`
source ~/.bashrc
“`

7. Test Java Environment

To confirm that the Java environment variables have been set correctly, run the following command:

“`
echo $JAVA_HOME
echo $PATH
“`

These commands should display the paths to your JDK installation and the updated PATH variable, respectively.

8. Install Java Development Tools (Optional)

If you plan to develop Java applications, you may want to install additional tools like the Java Development Kit (JDK) and the Java Runtime Environment (JRE). You can do this by running the following command:

“`
sudo apt install openjdk-11-jdk openjdk-11-jre
“`

9. Conclusion

By following these steps, you have successfully installed the full version of JDK on your Linux system without any headless limitations. Now you can start developing Java applications and take advantage of the powerful features offered by the Java programming language. Remember to keep your JDK updated and regularly check for security patches to ensure the stability and security of your Java applications.