Java:

The following program is designed to implement a simple multiplication quiz. The program generates random numbers in a specified range and prompts the user to enter the product of those numbers. Read the program to become familiar with it and also compile and run it.

import java.util.Scanner; public class MultiplicationQuiz { public static void main( String [] args ) { // Generate 2 random numbers that will be multiplied int number1 = (int) ( Math.random() * 10 ); int number2 = (int) ( Math.random() * 10 );

// Prompt user to input answer System.out.print( "What is " + number1 + " * " + number2 + "? " ); Scanner input = new Scanner( System.in ); int answer = input.nextInt();

// Grade the answer if ( ( number1 * number2 ) == answer ) System.out.println( "Congratulations...you are correct!" ); } }

Modify the program so that it also performs the following:

It should prompt the user to enter how many multiplication problems to generate

If the user enters a wrong answer, the program shall display what the correct answer is

It should display the users score as a percentage of problems the user answered correctly

It should display the total amount of time, in seconds, that the user took to complete the quiz