Pool.java

import java.util.Scanner;

public class Pool{
   public static void main(String[] args){
      //declare and initialize variables
      int p1Score = 0, p2Score = 0;
      Scanner kb = new Scanner(System.in);

      //Get first ball score
      System.out.print("Enter a ball: ");
      int ball = kb.nextInt();

      //while loop - keep going while neither player has 70 or more
      while( p1Score <= 70 && p2Score <= 70 ){

         //Player 1's turn while ball is not 0
         while( ball != 0 ){
            p1Score += ball;
            //Output new score
            System.out.println("Player1\t" + p1Score + "\tPlayer2\t" + p2Score);
            //Get next ball
            System.out.print("Enter a ball: ");
            ball = kb.nextInt();
         }

         //Get first ball of player 2's turn
         System.out.print("Enter a ball: ");
         ball = kb.nextInt();

         //Player 2's turn while ball is not 0
         while( ball != 0 ){
            p2Score += ball;
            //Output new score
            System.out.println("Player1\t" + p1Score + "\tPlayer2\t" + p2Score);
            //Get next ball
            System.out.print("Enter a ball: ");
            ball = kb.nextInt();
         }
      }

      //End of game if code reaches here
      if( p1Score > p2Score ) System.out.print("Player1 wins " + p1Score + " to " + p2Score);
      else if( p2Score > p1Score ) System.out.print("Player 2 wins " + p2Score + " to " + p1Score);
      else System.out.print("It's a tie " + p1Score + " to " + p2Score);
   }
}