Craps.java

import java.util.*;

public class Craps {

   static int numPlays = 0;
   static int firstRoll, nextRoll;
   static String playAgain;
   
   //This method will prompt the user if wants to play a game of craps
   //and stores the input into playAgain
   public static void wannaPlay(Scanner console) {
   
      // Enter code here
      System.out.print("Wanna play CRAPS? (Yes or No): ");
      playAgain = console.next().toLowerCase();
   }
   
   //This method simulates the roll of two dice using random numbers
   //between 1 & 6, prints what was rolled, and returns the sum
   public static int diceSum() {
      
      // Enter code here
      int roll1 = (int)(Math.random() * 6) + 1;
      int roll2 = (int)(Math.random() * 6) + 1;
      return roll1 + roll2;
   }
   
   //This method keeps rolling and incrementing numPlays until a 7
   //or the first roll is rolled. It returns the last roll.
   public static int keepRolling() {
      // Enter code here
       nextRoll = diceSum();
       while(nextRoll != 7 && nextRoll != firstRoll) {
           numPlays += 1;
           nextRoll = diceSum(); //re-roll the dice
       }
       return nextRoll;
  }
   
   //This method will prompt the user if wants to play again
   //and stores the input into playAgain
   public static String playAgain (Scanner console) {
      System.out.print("Wanna play CRAPS AGAIN? (Yes or No): ");
      return console.next().toLowerCase();
   }
      
   


   public static void main (String [] args) {
      
      Scanner console = new Scanner(System.in);

      wannaPlay(console);

      if(!playAgain.equals("yes")) {
          System.out.println("Okay then, bye!");
          return;
      }
      
      while (true) {
 
         firstRoll = diceSum();
         numPlays = 1;
         System.out.println ("First roll was a " + firstRoll);
         System.out.println ();
         
         if (firstRoll == 7 || firstRoll == 12) {
           System.out.println ("Winner Winner Chicken Dinner");
        } 
         else if (firstRoll == 2 || firstRoll == 3 || firstRoll == 12) {
            System.out.println ("Bummer, you lost on the first roll.");
        } 
         else {
            int finalRoll = keepRolling();
            
            if (finalRoll == 7) {
               System.out.println ("Bummer, you lost on roll number " + numPlays);
            }
            if (finalRoll == firstRoll) {
               System.out.println ("Yippee, you won on roll number " + numPlays);
            }
         }
         
         System.out.println();
         System.out.println("======================================");
         System.out.println();

         if(!playAgain(console).equals("yes")) {
             System.out.println("ok bye");
             break;
         }
      }
   }
}