The Java JDK is necessary for developing and running Java applications. It includes the most commonly used version of Java SE (Standard Edition) Development Kit.

If you want to download and install Java JDK 18 on Windows 11/10 computer, you will also have to set up a Path in Environment Variable.

Click on the major version you want to download from the "Java SE" list. For example, choose "Java SE 6" if you want to download any version number ranging from Java 6.0 to Java 6.43.