Check out example codes for "command line arguments in java". It will help you in understanding the concepts better.

Code Example 1

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

Code Example 2

class CommandLineExample{  
public static void main(String args[]){  
System.out.println("Your first argument is: "+args[0]);  
}  
}

//Now follow these steps
compile by > javac CommandLineExample.java  
run by > java CommandLineExample sonoo

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