JAVA newby needs help

Question

I am trying to learn JAVA on my own and am stuck on using random numbers. My grandson is having problems in math (he is 7) and I want to create a math quiz that will generate two numbers between 0 and 10 and ask him for the correct answer. I understand the JOptionPane and how to display what I wan it to say (easy) but I do not know how to make the result of the sum of the two randoms be the required user (my grandson) input.
Here is what I have (don't laugh it's a mess):
/* ROMAD, January 21, 2007
* Trying to write a Java program for
* my grandson so he can practice and
* learn how to multiply using two integer numbers*/
package mathTest;
import javax.swing.JOptionPane;
import java.util.*;
public class MathTest_1 {
    public static void main(String[] args) {
        Random randomNumbers = new Random();
        // pick random number values between 0 and 10
        int number1 = 1 + randomNumbers.nextInt(10); // first random number
        int number2 = 1 + randomNumbers.nextInt(10); // second random number
        String response;
        response = JOptionPane.showInputDialog("Enter the maximum number");
     // place random number values here and ask for correct number
        System.out.printf("How much is %d times %d\n", number1, number2);
        // ask player what is the answer
        response = JOptionPane.showInputDialog(null,"How much is %d * %d");
        if (response == null)
            JOptionPane.showMessageDialog(null,
                                          "You must enter a value first");
        else if (response.equals(""))
            JOptionPane.showMessageDialog(null, "Please try again");
            JOptionPane.showMessageDialog(null,
                                          "Great! Would you like to play again?");
        System.exit(0);
}

Answer 1

> Done! I goofed it up but sent out another formatted correctly
It's typically considered good form to continue in the same thread rather than starting a new one. At the very least, you'll want to provide a link to the new thread (as in reply #3), so people aren't answering your question in two different threads.
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