Command-Line Arguments

• Sometimes we need to pass arguments with main () function
• We can do so by using command-line arguments
• Command-line argument is the information that is passed with program name while running the program
• All the arguments, passed to the program are stored inside the String array args[] of the main ()
• Each arguments is stored at the specific index of the array args[]
• For example the first argument is stored at args[0], second at args[1], and so on
• We can accesses specific arguments in the program by its index
• The following program accepts two arguments for summation

Class commandLineDemo
{
    Public static void main(String args[]) 
    {
         int x,y;
         System.out.println(“No. of Arguments are:” + args.length);
      if( args.length==2)
      {
          x=integer.parseInt(args[0]);
          y=integer.parseInt(args[1]);
          System.out.println(“Sum is:” + (x+y));
      }
     else
         System.out.println(“No. of Arguments are Invalid);
  }
}