Steps to Install Java 21 (LTS JDK) on Windows 11

1. Go to the official Oracle OpenJDK Download page for Java 21 - https://jdk.java.net/java-se-ri/21
2. Download the setup: Windows 11 x64 Java Development Kit. This will download a zip file - openjdk-21_windows-x64_bin.zip

   

3. Now create a Java-21 folder under C:\Program Files and extract the jdk-21 zip file in it.
4. Now we add the path of the Java 21 bin folder - "C:\Program Files\Java-21\jdk-21\bin" to the PATH variable in environment settings.

   

5. Open Command Prompt and try out the java --version command.

   java --version
   
   openjdk212023-69-19
   OpenJDK Runtime Environment (build 21+35-2513)
   OpenJDK 64-Bit Server VM (build 21+35-2513, mixed mode, sharing)

   

Thats all!

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Note: If you have multiple Java JDKs installed on your PC, you may want to also set JAVA_HOME