Tossing Coins for a Dollar Java Program?!?!

**Judy_Ven** · January 29th, 2014, 06:02 PM

I've seem to have hit a roadblock. I'm stuck!

The question is we have to 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 sideUp 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.

Now we have to create a game program using the Coin class. 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 program 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 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 you balance reaches on dollar or more. If your balance is exactly one dollar, you win the game. You lose if your balance exceeds one dollar.

I think I've completed the Coin class but the game program is giving me problems. I got it to add the balances when they land on heads but it only does it one time. I'm trying to figure out how to input a loop but I haven't had any luck. Can I get some ideas?

CoinClass1.JPG CoinClass2.JPG GameProgram1.JPG GameProgram2.JPG GameProgram3.JPG

**GregBrannon** · January 29th, 2014, 06:13 PM

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**Judy_Ven** · January 29th, 2014, 06:43 PM

import java.text.DecimalFormat;
/**
 *
 * @author Yuridia
 */
public class a1main 
{
    public static void main(String[] args)
    {
        double balance = 0.00;
        final double winnings1 = .25;
        final double winnings2 = .10;
        final double winnings3 = .05;
 
        Coin coin = new Coin();
        Coin coin2 = new Coin();
        Coin coin3 = new Coin();
 
            coin.toss();
            coin2.toss();
            coin3.toss();
 
        System.out.printf("The quarter landed on " + coin.getSideUp() + ".\n");
        System.out.printf("The dime landed on " + coin2.getSideUp() + ".\n");
        System.out.printf("The nickel landed on " + coin3.getSideUp() + ".\n");
 
        {
         if ("heads".equals(coin.getSideUp()))
         {
            coin.addWinnings(winnings1);
            System.out.printf("Awarding " + winnings1 + " cents to balance.\n");
 
            System.out.printf("Your current balance is now " + coin.getBalance() + ".\n");
 
            if ("heads".equals(coin2.getSideUp()))
            {
                coin.addWinnings(winnings2);
                System.out.printf("Awarding " + winnings2 + " cents to balance.\n");
 
                System.out.printf("Your current balance is now " + coin.getBalance() + ".\n");
 
                if ("heads".equals(coin3.getSideUp()))
                {
                    coin.addWinnings(winnings3);
                    System.out.printf("Awarding " + winnings3 + " cents to balance.\n");
 
                    System.out.printf("Your current balance is now " + coin.getBalance() + ".\n");
 
                }
            }
 
         }}
 
        {
         if (balance > 1.00)
         {
         System.out.printf("Your ending balance is " + balance + " . You lose");
         }
 
         if (balance == 1.00)
         {
         System.out.printf("Your ending balance is $1.00. YOU WIN!!");
         }
         }}}

--- Update ---

lol! I don't think did that right!

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