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What is command line argument in Java
3 Answer(s)      a year and 7 months ago
Posted in : Java Beginners


What is command line argument in Java and how one can use it to create a program in Java? Can you post any example of command line argument program in Java?? It will be really helpful for the beginners like me.


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December 15, 2012 at 5:11 PM


Command line arguments allow the user to affect the operation of an application. A Java application can accept any number of arguments from the command line. Arguments are passed as a string array to the main method of a class.

Here is an example:

public class CommandLineArguments{
      public static void main(String[] args){
         System.out.println("These are the command line arguments:");
          for (int i=0; i < args.length; i++){
             System.out.println("arg[" + i + "]: " + args[i]);
          }
    }
}

Now while executing this example, you need to give the arguments along with class name as below:

java CommandLineArguments A B C D



December 15, 2012 at 5:32 PM




December 15, 2012 at 5:33 PM




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