Download Java 21 Windows zip from https://jdk.java.net/archive/
Unzip and place it in any directory you like:
Set JAVA_HOME environment variable
Click on environment variables
Add JAVA_HOME/bin to PATH variable
Select PATH and click Edit:
Then Click New
Enter “%JAVA_HOME%\bin” and click “Ok”
Verify Java 21 is installed:
Open Command Line:
Type “java -version” and press Enter:
YAYYYYY!!!!!!!!!!!!!!!! Java 21 setup is done!
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