Issues with program not stopping

Question

I am working on this program and I cant get it to stop when I ask a question. It generates a random number and I am trying to ask the user if they want to play again, but it wont stop....no matter where I put the question. I also need help with when I get it to stop, how do I bring the program back to the beginning of the loop to start again if they want to play again? Please help....
import java.util.*;
import java.io.*;
//Name of program
public class HIGH_LOW
     //Allowing input to be made
     static Scanner console = new Scanner(System.in);
     //Main method
     public static void main(String[] args)
          //Generating a random number
          int rNum = (int)(Math.random() * 101);
          //Introduction to user
          System.out.println("WELCOME ALL to 'Guess a number between 1 and 100', enter 0 to quit.");
          //Initializing variables
          int guess = -1;
          int count = 0;
          int answer;
          //Initializing loop
          while (guess != rNum)
               //Prompting user
               System.out.print("\nGuess: ");     
               //Reassigning variable
               guess = console.nextInt();
               count++;
               //Conditional statements
               //If the guess is correct
               if (guess == rNum)
                    //Output for correct guess
                    System.out.println("CORRECT!!!, the number is: " + rNum + ", and it took " + count +
                                                   " guesses.");
                    //If guess too low
                    else if (guess < rNum)
                         //Output if guess is too low
                         System.out.println("Too low");
                    //If guess too high
                    else
                         //Output if guess is too high
                         System.out.println("Too high");
               //Sentinel to exit
               if (guess == 0)
                    //Action to be performed if user chooses
                    System.exit(0);          
          //System.out.println("Would you like to play again?"); I can put it here.....
          //System.out.println("Would you like to play again?"); Or here... and it won't stop.
}

Answer 1

I got it, this is what works for me... And I am learning how to write my own methods... You are correct, they are very useful!!!
if (guess == rNum)
                    //Output for correct guess
                    System.out.println("CORRECT!!!, the number is: " + rNum + ", and it took " + count +
                                                   " guesses.");
                    System.out.println("Would you like to play again? Y/N");
                         //Assgining variable
                         playAgain = console.next().charAt(0);
                    //If they don't want to play again
                    if (playAgain == 'n' || playAgain == 'N')
                              //Action performed
                              System.exit(0);
                    //Reassign rNum
                    rNum = (int)(Math.random() * 101);
                    }