Mathtutor 4-23

Post date: Mar 5, 2014 5:37:49 PM

package mathtutor;

import java.util.Scanner; // Needed for the Scanner class

import java.util.Random; // Needed tor the Random class

/*

This program demonstrates the Random class.

 */

public class MathTutor {

    public static void main(String[] args) 

    {

        int number1;    // A number

        int number2;    // Another number

        int sum;        // The sum of the numbers

        int userAnswer; // The user's answer

       // Create a Scanner object tor keyboard input.

       Scanner keyboard = new Scanner(System.in);

       // Create a Random class object.

       Random randomNumbers = new Random();

       // Get two random numbers.

       number1 =randomNumbers.nextInt(100);

       number2 = randomNumbers.nextInt(100);

       // Display an addition problem.

       System.out.println("What is the answer to the"+

                          "following problem?");

       System.out.print(number2 + " + " +

       number2 + " =? " ) ;

       // Calculate the answer,

       sum = number1 + number2;

       // Get the user's answer.

       userAnswer = keyboard.nextInt();

       // Display the user's results,

       if (userAnswer == sum)

       System.out.println("Correct!");

       else

       {

          System.out.println("Sorry, wrong answer. "+

                             "The correct answer i s "+

                             sum);

       }

    }

}