Thread: Java program to generate random questions

Hello java. Welcome to the forums

I have wrote this example for you to look at.
There is no error handling to check what the user inputs but the functionality is there.

import java.util.Scanner;   public class JavaQuestions {   /** * JavaProgrammingForums.com */   // Global variables static String[] rangeArray = null; static int startRange, endRange;   public void userInput(){   // Scanner class to take user input Scanner sc = new Scanner(System.in); System.out.println("Enter a range between 1 and 20. eg 5-10: "); String firstRange = sc.nextLine();   // Split the input String rangeArray = firstRange.split("-");   // Assign range values startRange = Integer.parseInt(rangeArray[0]); endRange = Integer.parseInt(rangeArray[1]);   // doMaths method doMaths(); }   public void doMaths(){   System.out.println("Questions:");   // Loop 5 times and print for(int i = 0; i < 5; i++){   // Generate random number between startRange and endRange int randomPt1 = (int)(Math.random() * (endRange - startRange + 1) ) + startRange;   // Generate random number between 1 and 10 int randomPt2 = (int)(Math.random() * (10 - 1 + 1) ) + 1;   // Print math questions System.out.println(randomPt1 + " * " + randomPt2 + " = ?"); } }     public static void main(String[] args) {   JavaQuestions j = new JavaQuestions(); j.userInput();   } }

Example output:

Enter a range between 1 and 20. eg 5-10:
1-20
Questions:
11 * 5 = ?
13 * 5 = ?
8 * 5 = ?
11 * 8 = ?
20 * 1 = ?