GameRock.java

import java.util.Scanner;

public class GameRock{
  public static void main(String[] args){
	int number = (int)(Math.random()* 3);

    Scanner input = new Scanner(System.in);

         int game = 0;
	while(game < 3){
       		 System.out.print("Enter your choice (0 = Rock, 1 = Paper, 2 = Scissors, 9 = Quit): ");
	 	game = input.nextInt();

        if(game == 5){
            System.out.println("Game Over");
            break;
        }

       else if(game < 0 || game > 2){
            System.out.println("Please enter a valid number.");
           
        }

        System.out.printf("Computer chose: %d%n",number );

        if(game == number){
            System.out.println("It is a draw");
        } 

      else if((game == 0 && number == 2) || (game == 1 && number == 0) || (game == 2 && number == 1)){
            System.out.println("You win!");
        } 

   else {
            System.out.println("Computer wins!");
        }

    }

     }
  
}