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Java command line arguments are arguments that are passed to your program via a terminal or shell command. They make your Java program more configurable by giving users or scripts running your software a way to specify input parameters at run time. Command line programs are useful if you use SSH to run commands on a remote system or if your program is intended to be run via automation scripts that don’t need a graphical user interface. In this detailed tutorial, you’ll learn how to create and execute a simple command line application.