Programming Activity 3.17 Java Programming 2017

import javax.swing.*;

public class dialogbox
{
    public static void main(String [] args)
    {
        String name = JOptionPane.showInputDialog(null,
                      "Please enter your name");
        JOptionPane.showMessageDialog(null, "Hello, " + name);

        String year = JOptionPane.showInputDialog(null, "In what year were you born? ");
        int age = 2017 - Integer.parseInt( year );
        JOptionPane.showMessageDialog(null, "This year, you will be " + age);
        double lived =  age/80.0 * 100.0;
        JOptionPane.showMessageDialog(null, "You have lived " + lived + "% of your life.");
    }
}