Command Line Arguments

Overview

This tutorial will teach you how to handle command-line arguments in a Java program. The command line argument is the argument/data passed to the program when we run it.

The arguments are stored in a String array called args that are passed to the Java main() method.

public static void main(String[] args)

Java Program Example

The command line arguments that are passed from the console are stored in a String array and can be retrieved in the Java program.

Let’s write a simple Java program to understand the concept. The following program will print the command line arguments each in a separate line.

/*
 * Command line arguments demo
 * Java Tutorials - www.TestingDocs.com
 */

public class JavaApplication {

 public static void main(String[] args) {
 for (int i = 0; i < args.length; i++) {
 System.out.println(args[i]);
 }
 }
}

Command Line Arguments Java