Question

12. Coin Toss Simulator Write a class named Coin. The Coin class should have the following field .A String named sideUp. The sideUp field will hold either "heads" or "tails" indicating the side of the coin that is facing up The Coin class should have the following methods .A no-arg constructor that randomly determines the side of the coin that is facing up (heads" or "tails") and initializes the aideUp field accordingly .A void method named toss that simulates the tossing of the coin. When the toss method is called, it randomly determines the side of the coin that is facing up ("heads" or "tails") and sets the sideUp field accordingly. A method named getSideUp that returns the value of the sideUp field Write a program that demonstrates the Coin class. The instance of the class and display the side that is initially facing up. Then. use a loop to toss the coin 20 times. Each time the coin is tossed, display the side that is facing up The program should keep count of the number of times heads is facing up and the number of times tails is facing up, and display those values after the loop finishes program should create an 13. Tossing Coins for a Dollar For this assignment you will create a game program using the Coin class from Programming Challenge 12. The program should have three instances of the Coin class: one representing a quarter, one representing a dime, and one representing a nickel When the game begins, your starting balance is $0. During each round of the game, the program will toss the simulated coins. When a coin is tossed, the value of the coin is CISC-185 Prof. M. Kadri added to your balance if it lands heads-up. For example, if the quarter lands heads-up 25 cents is added to your balance. Nothing is added to your balance for coins that land tails-up. The game is over when your balance reaches one dollar or more. If your balance is exactly one dollar, you win the game. You lose if your balance exceeds one dollar 14. Fishing Came Simulation For this assignment! you will write a program that simulates a fishing game. In this game, a six-sided die is rolled to determine what the user has caught. Each possible item is worth a certain number of fishing points. The points will remain hidden until the user is finished fishing, and then a message is displaced congratulating the user depending on the number of fishing points gained Here are some suggestions for the games design Each round of the game is performed as an iteration of a loop that repeats as long as the player wants to fish for more items. At the beginning of each round, the program will ask the user whether or not he or she wants to continue fishing The program simulates the rolling of a six-sided die (use the Die class that was shown in Code listing 6-14). Each item that can be caught is represented by a number generated from the die; for example, 1 for "a huge fish", 2 for "an old shoe", 3 for "a little fish", and so on Each item the user catches is worth a different amount of points The loop keeps a running total of the user's fishing points. After the loop has finished, the total number of fishing points is displayed, along with a message that varies depending on the number of points earned

Answer 1

12.

CODE:

package packages_example;

import java.util.Random;
// creating class coin
public class Coin {
    private String sideUp;
    // constructor
    public Coin(){
        // generating a random number between 0 and 1
        // and assigning side up using it
        Random rand = new Random();
        rand.setSeed(System.currentTimeMillis());
        int choice = rand.nextInt(2);
        if (choice == 0) sideUp = "heads";
        else sideUp = "tails";
    }
    public void toss() {
        // generating a random number between 0 and 1
        // and assigning side up using it
        Random rand = new Random();
        int choice = rand.nextInt(2);
        if (choice == 0) sideUp = "heads";
        else sideUp = "tails";
    }
    // return side up as string
    public String getSideUp(){
        return sideUp;
    }
    // main function
    public static void main(String[] args) {
        Coin c = new Coin();
        System.out.println("Coin created with " + c.getSideUp() + " as side up.");
        for (int i = 1; i <= 20; i++) {
            c.toss();
            System.out.printf("Toss #%d, Side up : %s.\n",i,c.getSideUp());
        }
    }
}

OUTPUT:

"C:\Program Files\Java\jdk-11.0.1lbin\java.exe" Coin created with tails as side up. Toss #1, Side up heads. Toss #2, Side up heads. Toss #3, Side up heads. Toss #4, side up : heads. Toss #5, Side up tails. Toss #6, Side up heads. Toss #7, Side up heads. Toss #8, Side up : tails. Toss #9, side up : tails. Toss #10, Side up heads. Toss #11, side up : tails. Toss #12, side up heads. Toss #13, Side up : tails. Toss #14, side up : heads. Toss #15, side up : tails. Toss #16, side up heads. Toss #17, Side up : heads Toss #18, Side up : tails. Toss #19, Side up : tails. Toss #20, Side up : tails. Process finished with exit code O

13.

CODE:

package packages_example;

public class CoinTossGame {
    public static void main(String[] args) {
        // Coin variables
        Coin quarter = new Coin();
        Coin dime = new Coin();
        Coin nickel = new Coin();
        float balance = 0;
        int counter = 0;
        while (true) {
            System.out.println("Round #" + ++counter + ":");
            // if balance is lese than 1 then toss the coins
            if (balance < 1) {
                quarter.toss();
                dime.toss();
                nickel.toss();
                // check if the coins are heads up, then add value to balance
                if (quarter.getSideUp().equals("heads"))
                    balance += 0.25;
                if (dime.getSideUp().equals("heads"))
                    balance += 0.10;
                if (nickel.getSideUp().equals("heads"))
                    balance += 0.05;
                System.out.println("Quarter : \t\t" + quarter.getSideUp());
                System.out.println("Dime : \t\t\t" + dime.getSideUp());
                System.out.println("Nickel : \t\t" + nickel.getSideUp());
                System.out.println("Balance : \t\t" + balance);
                System.out.println();
            }
            // if balance is 1 then you've won the game
            else if (balance == 1) {
                System.out.println("You win the game");
                System.exit(1);
            }
            // if balance has exceeded 1 then you've lost the game
            else {
                System.out.println("You have lost the game, your balance has exceeded $1.00.");
                System.exit(1);
            }
        }
    }
}

OUTPUT:

"C:\Program Files Java\jdk-11.0.1binljava.exe"-j Round #1: Quarter: Dime : Nickel: Balance: heads tails heads 0.3 Round #2: Quarter: Dime : Nickel: Balance: heads heads tails 0.65000004 Round #3: Quarter: Dime : Nickel: Balance: tails heads tails 0.75000006 Round #4: Quarter: Dime : Nickel: Balance: heads tails tails Round #5: You win the game Process finished with exit code 1