Simple Password Checker Into JOptionPane?

i have this source code...

import java.util.Scanner;
//I had to use scanner in this program because I had to create objects that were in the Scanner class, such as in row 16.
* This program confirms a password typed into a *
* console window *
*/
 public class Homework1 {
public static void main(String[] args) {
//Needs to add a scanner to the program to continue on
Scanner keyboard = new Scanner(System.in);

[code]....

Now I need to create a second version of this program that uses JOptionPane to get the inputs from the user and show the output!