Problem : In the game of a pass line bet proceeds as follows. Two six-sided die

Question

Problem: In the game of a pass line bet proceeds as follows. Two six-sided die are rolled: the first roll of the dice in a round is called the “come out roll.” A come out roll of 7 or 11 automatically wins, and a come out roll of 2, 3, or 12 automatically loses. If 4, 5, 6, 8, 9, or 10 is rolled on the come out roll that number becomes “the point.” The player keeps rolling the dice until either 7 or the point is rolled. If the point is rolled first, then the player wins the bet. If a 7 is rolled first, then the player loses.

Write a program that simulates a game of using these rules without human input. Instead of asking for a wage, the program should calculate whether the player would win or lose. The program should simulate rolling two dice and calculate the sum. Add a loop so that the program plays 10,000 games. Add counters that count how many times the player wins and how many times the player loses. At the end of the 10,000 games, compute the probability of winning (wins/ (wins + losses)) and output this value.

Note: to simulate the dice rolling use the Random class to generate numbers between 1 and 6 inclusive.

Here is an example series:

The shooter throws the dice on a come out roll, which starts a new series, and a 5 is rolled. (Recall that rolling a 7 or 11 would have been winners and 2, 3, or 12 would have been losers.)

The shooter has established a point of 5.

The shooter throws the dice again and rolls an 8.

Nothing happens and player rolls the dice again.

The shooter throws the dice again and rolls a 3. (Note that rolling a 2, 3, 11, or 12 after a point is established means nothing)

The shooter throws the dice again and rolls a 5.

This is the shooter's point so this is a win and the series ends.

Your program should:

Declare the variables numOfWins and numOfLoss to keep track of the number of times player wins or loses.

Add a loop to your program so that the game is played 10,000 times.

Add another loop so the player can start a new set of games.

Declare a constant for the number of games being played. (10,000)

Simulate rolling the two dice and calculate the sum. This first roll will establish the comeOutRoll. (use the Random class to generate random numbers for the dice)

Pass this first comeOutRoll to a method called winOrLose. This method will return a string. If it returns:

“seven” means a loss. therefore the variable numOfLoss must be incremented in the main method

“the point” means a win. Therefore, the variable numOfWin must be incremented in the main method.

“win”: means a win. Then the variable numOfWins must be incremented in the main method.

“loss”: means a loss then the variable numOfLoss must be incremented in the main method.

“The Point”: means a point has been established. Therefore set the variable thePoint to the comeOutRoll. Then the method keepRolling must be called to roll the dice until a 7 or “the point” is rolled. This method will return a string:

At the end of the 10,000 games, call the method winProbability to compute the probability of winning (wins/wins + losses)

Output the value returned

Ask the user if she/he wants to start a new game.

Output a good by message if the user does not want to play again.

List of the methods for the Cras game  

1. main method: Has only one line of code which is a call to the method play

2. play method

winOrLoss method: in this method you can only have one return statement.

description method: outputs the description of the game

    

keepRolling method : you must only use one return statement.

winProability method :

Sample Output

Explanation / Answer

Please have the program. please use System outs and print where necessary. package nice; import java.util.Random; import java.util.Scanner; public class Game { static String win = "win"; static String loss = "Loss"; static String thePoint = "the point"; public static String winOrLoss(int comeOutRoll) { String returnVal = ""; if (comeOutRoll == 7 || comeOutRoll == 11) { returnVal = win; } else if (comeOutRoll == 2 || comeOutRoll == 3 || comeOutRoll == 12) { returnVal = loss; } else { returnVal = thePoint; } // if comeOutroll is 7 or 11 return “win” //if comeOutRoll is 2, 3, or 12 return the string “Loss” //if comeOutRoll is 4, 5, 6,8, 9, or 10 return the string”the point” return returnVal; } public static void play() { // Declare your variables numOfwin, numOfLoss, thePoint, comeOutRoll, numOfPlays and set them to zero int numOfwin = 0, numOfLoss = 0, thePoint = 0, comeOutRoll = 0, numOfPlays = 0; boolean playagain = true; while (playagain) { for (int i = 0; i < 10000; i++) { int quess1 = getAbsNonZeroVal(7); int quess2 = getAbsNonZeroVal(7); comeOutRoll = quess1 + quess2; if (winOrLoss(comeOutRoll).equals(win)) { numOfwin++; } else if (winOrLoss(comeOutRoll).equals(loss)) { numOfLoss++; } else { thePoint = comeOutRoll; if (keepRolling(thePoint).equals("seven")) { numOfLoss++; } else { numOfwin++; } } // 1) Since you roll the dice two times you need to generate two random numbers // between 1 and 6 inclusive and then add them up. This will be the value for the variable comeOutRoll // 2) Call the method winOrLoss // based on the returned value from this method: // increment the variable numOfWins // or increment the variable numOfLoss // or set the variable thePoint to comeOutRoll and then call // the method Based on the value returned from this method adjust the value of numOfLoss and NumOfWin } System.out.println("Probability of winning "+winProability(numOfwin,numOfLoss)); // call the method winProbability // output the return value from the method winProability numOfwin = 0; numOfLoss = 0; thePoint = 0; comeOutRoll = 0; // reset all the variables // ask the user if he/she wants to start another set of games System.out.println("Would you like to play another game yes/no?"); Scanner in = new Scanner(System.in); String userInput = in.nextLine(); } } public static double winProability(int wins, int losses) { return wins/(wins+losses); //calculate the proability //return the value } public static String keepRolling(int thepoint) { int sum = thepoint; do { int quess1 = getAbsNonZeroVal(7); int quess2 = getAbsNonZeroVal(7); sum = quess1 + quess2; if (sum == thepoint) { return thePoint; } else if (sum == 7) { return "seven"; } } while (true); //keep rolling the dice until you get thePoint or your get seven. //return the string “seven” if you get a seven //return the string “thePoint” if you get the point } /** * @param exclusiveUpperBound * @return non zero value under 7 and above 0 */ private static int getAbsNonZeroVal(int exclusiveUpperBound) { int returnVal; do { returnVal = Math.abs(new Random().nextInt(exclusiveUpperBound)); } while (returnVal == 0); return returnVal; } }

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.