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 ...

Before demonstrating how to run an individual Test Class from the command-line line, I’ll first look at how to do it through the IDE. For the IDE and command-line examples, I will be using two ...