    01: import javax.swing.JOptionPane;
    02:
    03: public class InputTest
    04: {
    05:    public static void main(String[] args)
    06:    {
    07:       String input = JOptionPane.showInputDialog("How old are you?");
    08:       if (input != null)
    09:       {
    10:          int age = Integer.parseInt(input);
    11:          age++;
    12:          System.out.println("Next year, you'll be " + age);
    13:       }
    14:       System.exit(0);
    15:    }
    16: }