How to Install OpenJDK 23 on Pop_OS! – Step-by-step

How to Install

2. 2. Enabling OpenJDK 23 PPA

   Add OpenJDK 23 PPA for Pop_OS! GNU/Linux

   Here Enabling OpenJDK 23 Repo for Pop_OS!

   Link to Add OpenJDK 23 Repo for Pop_OS! GNU/Linux

3. 3. Installing OpenJDK 23

   Then to Install OpenJDK 23
   First, to look up all the available flavors play:

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   apt search openjdk-23

   So next for OpenJDK JDK 23 issue:

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   sudo apt install openjdk-23-jdk

   Where for the Java Runtime instead:

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   sudo apt install openjdk-23-jre

   Authenticate with the User Admin Pass.
   If Got “User is Not in Sudoers file” then see: How to Enable sudo
   Now to Check the current Java:

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   java -version

   And in output you find it:

   

   Finally, to check for available Java releases:

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   apt search openjdk | grep jdk

4. 4. Managing Java Versions

   So now to Manage Multiple Java on System
   Use the update-alternatives as:

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   sudo update-alternatives --config java

   If more than one then choose the wanted Release from list:

   

   And in case of a JDK Setup you may also switch the Java Compiler with:

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   sudo update-alternatives --config javac

Java IDEs Installation on Linux

Eclipse IDE: Installing Eclipse IDE for Java on Linux.

Netbeans IDE: Installing NetBeans IDE for Java on Linux.

IntelliJ IDEA: Installing IntelliJ IDEA for Java on Linux.

So Now I’m truly Happy if My Guide could Help You to Quick-Start with OpenJDK 23 on Pop_OS!!