How do you run a JAR file on Windows, Mac or Linux? Double click the JAR? Run the JAR at the command line? Several approaches will work if you have Java or the JDK installed.

Using the Windows Subsystem for Linux (WSL), you can launch Linux applications directly in a Windows 10 command prompt or PowerShell prompt.

But there are other features of this Java command-line tool that can be helpful as well. Along with the ability to create a compressed zip file, the jar utility can be used to specify the entry point ...