How to Install Oracle Java JDK on Ubuntu Linux

2023-08-06T20:33

Java is a widely used programming language known for its platform independence and robustness. As a developer or system administrator, you might require the Oracle Java JDK (Java Development Kit) to build and run Java applications. This article will guide you through the installation process of Oracle Java JDK on an Ubuntu Linux system. 1. Before we begin, open a terminal on your Ubuntu system. You can do this by pressing `Ctrl + Alt + T` or searching for "Terminal" in the applications menu. 2. First, ensure that your system is up to date by running the following command in the terminal: ``` sudo apt update sudo apt upgrade ``` 3. Now, let's add the Oracle Java JDK repository to your system. Execute the following command to add the repository: ``` sudo add-apt-repository ppa:webupd8team/java ``` 4. After adding the repository, update the package list again: ``` sudo apt update ``` 5. It's time to install the Oracle Java JDK. Use the following command to initiate the installation: ``` sudo apt install oracle-java11-installer ``` 6. During the installation, you will be prompted to accept the Oracle Technology Network License Agreement. Use the Tab key to navigate to "Yes" and hit Enter to proceed. 7. Once the installation completes, verify the Java version using the following command: ``` java -version ``` 8. To ensure that Java is set as the default version, run the following command and follow the on-screen instructions: ``` sudo update-alternatives --config java ``` 9. Next, you may want to set up the environment variables to point to the Java installation. Open the `/etc/environment` file in a text editor using the following command: ``` sudo nano /etc/environment ``` 10. Add the following lines to the file, replacing `/path/to/java` with the path of your Java installation (usually `/usr/lib/jvm/java-11-oracle`): ``` JAVA_HOME="/path/to/java" export JAVA_HOME ``` 11. Save the changes and exit the text editor (`Ctrl + X`, then `Y` followed by `Enter`). 12. To make the changes take effect, reload the environment variables: ``` source /etc/environment ``` 13. Congratulations! You have successfully installed Oracle Java JDK on your Ubuntu Linux system. 14. Keep in mind that Oracle Java may receive updates in the future. To update your Java installation, simply run the following commands: ``` sudo apt update sudo apt upgrade ``` 15. Additionally, if you need to install a different version of Oracle Java JDK, you can do so by modifying the installation command accordingly. 16. It's essential to manage multiple Java versions on your system, especially if you work on multiple projects with specific Java requirements. For this purpose, you can use the `update-java-alternatives` command to switch between different Java versions easily. <div id='bottom_banner_dyno'></div> 17. Remember that Oracle Java JDK is just one option for running Java applications on Ubuntu Linux. OpenJDK, an open-source implementation of the Java Platform, is also available and can be installed using the Ubuntu package manager. 18. It is crucial to ensure that your Java environment is secure, especially if your system is exposed to the internet. Always keep your Java installation up to date to benefit from the latest security patches and improvements. 19. Before you begin your Java development journey, make sure you have an Integrated Development Environment (IDE) installed. Popular choices for Java development include Eclipse, IntelliJ IDEA, and NetBeans. 20. If you encounter any issues during the installation or have questions regarding Java development on Ubuntu Linux, refer to the Oracle Java documentation or seek assistance from the active developer community online. 21. Now that you have Oracle Java JDK installed on your Ubuntu Linux system, you are ready to create, compile, and run Java applications efficiently. 22. Embrace the versatility and power of Java as you embark on your programming endeavors. Happy coding! <a href='https://go.coinmama.com/visit/?bta=60983&brand=coinmamaaffiliates'>Earn money with Coinmama Affiliates! Start instantly!</a>

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How to Install Oracle Java JDK on Ubuntu Linux