Question

Write a program that will help a student learn multiplication. Use SecureRandom object to produce two positive integers between 1 and 20. The program should then prompt the user with a question (use a sentinel-controlled loop), such as: How much is 10 times 11? The student then inputs the answer. If the answer is correct display the message “very good” and ask another question. If the answer is wrong to display the message “no, please try again” and let the student try the same question until the student finally gets it right. 5 You must create two java files: Multiplication.java and MultiplicationTest.java. In Multiplication add two methods: CreateQuestion and CheckResponse. In MultiplicationTest.java, test your methods. UPLOAD Multiplication.java and MultiplicationTest.java

sample output example:

How much is 15 times 13?

enter your answer (-1 to exit): 425

no, please try again.

enter your answer (-1 to exit): 195 very good!

How much is 7 times 5?

enter your answer (-1 to exit): 35

very good!

How much is 6 times 16?

enter your answer (-1 to exit): -1

Answer 1

Thanks for the question. Below is the code you will be needing. Let me know if you have any doubts or if you need anything to change. 

If you are satisfied with the solution, please rate the answer. Let me know for any help with any other questions.

Thank You !
===========================================================================

import java.security.SecureRandom;

public class Multiplication {

    private static SecureRandom random = new SecureRandom ();
    private int numberOne;
    private int numberTwo;


    public void generateQuestion() {
        numberOne = random.nextInt(20) + 1;
        numberTwo = random.nextInt(20) + 1;
    }

    public void displayQuestion() {

        System.out.println("How much is " + getNumberOne() + " times " + getNumberTwo() + "?");

    }

    public boolean isCorrect(int userInput) {
        return userInput == (numberOne * numberTwo);
    }

    public int getNumberOne() {
        return numberOne;
    }

    public int getNumberTwo() {
        return numberTwo;
    }

    public int getAnswer() {
        return getNumberOne() * getNumberTwo();
    }
}

=============================================================

import java.util.Scanner;

public class MultiplicationTest {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        int answer = 0;
        Multiplication multiplication = new Multiplication();
        do {
            multiplication.generateQuestion();
            multiplication.displayQuestion();
            while (true) {
                System.out.print("Enter your answer (-1 to exit): ");
                answer = scanner.nextInt();
                if (answer == -1) break;
                if (multiplication.isCorrect(answer)) {
                    System.out.println("Very Good!");
                    break;
                } else {
                    System.out.println("No, please try again.");
                }
            }


        } while (answer != -1);
    }
}

=============================================================