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.

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 ...

How to Run APK Files on an Android SDK. An Android APK file contains all the open-source Java files used to set up and run the Google Android app.

The simplest way to do this is to employ the Java Runtime object which allows you to access the Windows command line, known as the MS-DOS command prompt, and execute commands line-by-line.