title: Printing 10 random questions in JAVA
body: <p>I am tasked with creating a quizz program in Java which asks the user to find the answer to 10 addition / subtraction problems form ( a + b ) or ( a - b) = c, where "a" and "b" are random numbers.
  I was able to do the first part where "a" and "b" get randomly generated and the user is told whether or not their answer is correct. I am stuck on how to generate this question 10 times and how to randomly chose whether the operator is "+" or  "-". Below is the code I have so far:</p>
  
  <pre><code>import java.util.Scanner;
  import java.util.Random;
  
  public class LetsSee{
    public static void main(String [] args){
      Scanner keyboard = new Scanner(System.in);
      int sum = 0;   
      int userAnswer ;
      int check ;
  
      // Random number generating
  
      Random generator = new Random();
  
        int N1 = generator.nextInt(100);
        int N2 = generator.nextInt(N1);      
  
        System.out.println(" What is the answer to " + N1 + " + " + N2 + " = " );
        userAnswer = new Scanner(System.in).nextInt();  
  
        // Display if its correct or not
        check = N1 + N2;
        if(userAnswer == check){
          System.out.println("You are correct!");
        }
        else{
        System.out.println(" Sorry, the correct answer is : " + check);
        }
  
  
      }
    }
  </code></pre>
  
  <p>Help would be GREATLY appreciated. Thanks ! </p>