names Dialog

package lessons;
import javax.swing.JOptionPane;
public class NamesDialog
{
//program that asks first. millde. and last name then displays greeting, use input boxes
	public static void main(String[] args)
	{
		//declare string variables
		String first, middle, last;

		//Initialize variables and ask user for input
		 first = JOptionPane.showInputDialog("whats your first name?");
		 middle = JOptionPane.showInputDialog("whats your middle name?");
		 last = JOptionPane.showInputDialog("whats your last name?");

		 //display the result
		 JOptionPane.showMessageDialog(null, "greetings "+first+" "+middle+" "+last+"!");

		 //close system down+
		 System.exit(0);
	}

}