How to run a Java program using Command Prompt First things first, you will have to write the code that you want to run and save that as a Java executable file.

Is a JAR file just a ZIP file? A Java JAR file is really just a ZIP file. Java applications can be made up of hundreds or even thousands of classes, property files and other artifacts. When a Java ...

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.