Command Line Arguments in Java Program

Java application can accept any number of arguments directly from the command line. The user can enter command-line arguments when invoking the application. When running the java program from java command, the arguments are provided after the name of the class separated by space. For example, suppose a program named CmndLineArguments that accept command line arguments as a string array and echo them on standard output device.

java CmndLineArguments Mahendra zero one two three

CmndLineArguments.java

/**    * How to use command line arguments in java program.    */    class CmndLineArguments {   public static void main(String[] args) {     int length = args.length;     if (length <= 0) {     System.out.println("You need to enter some arguments.");     }    for (int i = 0; i < length; i++) {     System.out.println(args[i]);    }    }    }

Output of the program:

Run program with some command line arguments like: java CmndLineArguments Mahendra zero one two three OUTPUT Command line arguments were passed : Mahendra zero one two three