unable to take command line inputs

[akila sekaran]

public class Arguments{
   public static void main(String args[]){

	if(args.length < 3){
		System.out.println("Too few arguments.");
		System.out.println("Enter the first name,");
		System.out.println("Then the last name,");
		System.out.println("Then the age.");
		System.exit(1);
	}

	//correct input so preform the operations:

	String name = args[0] + " " + args[1];
	int age = Integer.parseInt(args[2]);

	System.out.println("Hello " + name + ".  You are "
		+ age + " years old!");

   } //main
}

This program is supposed to take in inputs but this ones printing just the default print statements..

[Campbell Ritchie]

java Arguments Campbell Ritchie 99

Hello Campbell Ritchie. You are 99 years old!

Worked perfectly
What are you writing at the command-line?

[Campbell Ritchie]

And welcome to the Ranch

[Nicola Garofalo]

How do you run it? From a shell window or from an IDE?

[Gaurangkumar Khalasi]

java Arguments gaurang 21 21

Output: Hello gaurang 21. You are 21 years old!

It works perfectly...

[akila sekaran]

Campbell Ritchie wrote:

java Arguments Campbell Ritchie 99

Hello Campbell Ritchie. You are 99 years old!

Worked perfectly
What are you writing at the command-line?

i had to use the InputStreamReader to get in the values which worked fine now.. but this code posted works but jus prints without gettin any input from user..

[Junilu Lacar]

The program is expecting the "input" to be specified on the command line, just as Campbell has shown.

If you're on Windows, you would run it this way:

C:> java Arguments Akila Sekaran 18

And it should work perfectly by giving the output:

Hello Akila Sekaran. You are 18 years old!

Please try to read the replies more carefully next time so you don't have to have multiple people telling you the same thing. Thanks.

[Campbell Ritchie]

akila sekaran wrote: . . . i had to use the InputStreamReader to get in the values . . .

That is not how the args array works. As Junilu Lacar told you, and several other people, you need to enter those data at the command line. Not a reader of any sort.

[Stanley Mungai]

Akila, If I was you I would Do:

BufferedReader br  = new BufferedReader(new InputStreamReader(System.in));

[Campbell Ritchie]

Not if you want command-line arguments. A BufferedReader reading from System.in might be a better way to take input generally, but the original post was specifically written to use command-line arguments.