Installing Java 17 on Ubuntu: A Step-by-Step Guide
Prerequisites
Before we begin, make sure you have the following prerequisites:
- Ubuntu 20.04 or later: Java 17 is only available on Ubuntu 20.04 or later. If you’re using an earlier version of Ubuntu, you won’t be able to install Java 17.
- Java Development Kit (JDK): You’ll need to install the JDK along with Java 17. You can download the JDK from the official Oracle website.
- Java Runtime Environment (JRE): You’ll need to install the JRE along with Java 17. You can download the JRE from the official Oracle website.
Step 1: Update the Package Index
Before installing Java 17, you need to update the package index to ensure you have the latest packages.
- Open a terminal and run the following command to update the package index:
sudo apt update
Step 2: Install the JDK
Once the package index is updated, you can install the JDK.
- Open a terminal and run the following command to install the JDK:
sudo apt install default-jdk
Step 3: Install the JRE
After installing the JDK, you need to install the JRE.
- Open a terminal and run the following command to install the JRE:
sudo apt install default-jre
Step 4: Install Java 17
Now that you have the JDK and JRE installed, you can install Java 17.
- Open a terminal and run the following command to install Java 17:
sudo apt install oracle-java17-installer
Step 5: Configure Java 17
After installing Java 17, you need to configure it to use the JDK.
- Open a terminal and run the following command to configure Java 17:
sudo update-alternatives --install /usr/lib/jvm/default-java java /usr/lib/jvm/default-java 80
Step 6: Set the Default Java Version
You can set the default Java version by running the following command:
- Open a terminal and run the following command to set the default Java version:
sudo update-alternatives --set java /usr/lib/jvm/default-java
Step 7: Verify Java 17 Installation
To verify that Java 17 is installed correctly, you can run the following command:
- Open a terminal and run the following command to verify Java 17 installation:
java -version
Step 8: Update Java 17
After verifying Java 17 installation, you can update it to the latest version.
-
Open a terminal and run the following command to update Java 17:
sudo apt update - Open a terminal and run the following command to update Java 17:
sudo apt install oracle-java17-updates
Step 9: Verify Java 17 Update
To verify that Java 17 is updated correctly, you can run the following command:
- Open a terminal and run the following command to verify Java 17 update:
java -version
Troubleshooting
If you encounter any issues during the installation process, you can try the following troubleshooting steps:
- Check the package index for any errors.
- Check the JDK and JRE installation for any errors.
- Check the Java 17 installation for any errors.
- Check the update-alternatives configuration for any errors.
Conclusion
Installing Java 17 on Ubuntu is a straightforward process that requires some basic steps. By following this guide, you should be able to install Java 17 on your Ubuntu system and use it for a variety of purposes, such as developing Java applications, running Java-based web applications, and more.