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POHow would I add enumerated type values in an array
 

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  1. POHow would I add enumerated type values in an array
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    <p>Heres the method where I try to add everything. What im trying to do is add up a series of coins, which are named penny,dime...etc. And i gave all of them a value within the enum. But how do I access each of the coins within the array, then add up their values?</p> <pre><code>public double totalValue(Coin[] coins) { double sum = 0; //computes and returns the monetary value of all the coins in the jar for(int i = 0; i &lt; coins.length; i++) { double coinValue = coins[i].CoinName.getCoinValue(); sum = sum + coins[i]; System.out.println(sum); } return sum; //change this! } </code></pre> <p>and here is where the values for the enum are defined. </p> <pre><code>public enum CoinName { PENNY(.01), NICKEL(.05), DIME(.10), QUARTER(.25), FIFTY_CENT(.50), DOLLAR(1.0); private double value; private double coinValue; private CoinName(double value) { this.coinValue = value; } public double getCoinValue() { return coinValue; } </code></pre> <p>}</p> <p>///// I have just added my coin class. </p> <pre><code>import java.util.Random; public class Coin { public static long SEED = System.currentTimeMillis(); public static Random RANDOM = new Random(SEED); //private instance variables denomination, year, and sideUp: year is an int, denomination is of type CoinName and sideUp is of type CoinSide private CoinName denomination; private CoinSide sideUp; private int year; public Coin(CoinName denomination,int year) { this.denomination = denomination; this.year = year; int side = Coin.RANDOM.nextInt(2); if (side == 0) { sideUp = CoinSide.HEADS; } else sideUp = CoinSide.TAILS; } //Accessors for denomination, year and sideUp public CoinName setDenomination() { int i = 0; i = Coin.RANDOM.nextInt(6); if (i == 0) { denomination = CoinName.PENNY; } if (i == 1) { denomination = CoinName.NICKEL; } if (i == 2) { denomination = CoinName.DIME; } if (i == 3) { denomination = CoinName.QUARTER; } if (i == 4) { denomination = CoinName.FIFTY_CENT; } if (i == 5) { denomination = CoinName.DOLLAR; } return denomination; } public CoinName getDenomination() { return denomination; } public void setSideUp(CoinSide sideUp) { sideUp = sideUp; } public CoinSide getSideUp() { return sideUp; } public void setYear(int year) { year = RANDOM.nextInt(2013-1873) + 1873; } public int getYear() { return year; } //the standard toString method that prints out a coin in the format “PENNY/1990/HEADS” public String toString() { return denomination + "/" + year + "/" + sideUp; } //the standard equals method that checks if two Coin objects are equal – they are equal if the denominations are identical public boolean equals(Object obj) { if (obj instanceof Coin){ Coin d = (Coin)obj; if (this.getDenomination()==d.getDenomination()) return true; else return false; } return false; } public void toss() { //flip the coin //Use the object RANDOM to generate random numbers int side = Coin.RANDOM.nextInt(2); if (side == 0) { sideUp = CoinSide.HEADS; } else sideUp = CoinSide.TAILS; } </code></pre> <p>}</p>
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    1. PO
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    1. USMarcus Scaffidi
    1. USMarcus Scaffidi
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      1. POHow would I add enumerated type values in an array
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    2. VO
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      1. POHow would I add enumerated type values in an array
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    1. COWhat is the problem/error? Expected/Example input/output? Also what is a `Coin`?
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      1. POHow would I add enumerated type values in an array
      1. USJava Devil
    2. COWhat's wrong with your current code? What happens when you try to run it?
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      1. POHow would I add enumerated type values in an array
      1. USLouis Wasserman
    3. COWhat does your class `Coin` look like? `sum = sum + coins[i];` isn't going to work, because `sum` is an `int` and `coins[i]` is a `Coin` object. You can't add a `Coin` object to an `int`.
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      1. POHow would I add enumerated type values in an array
      1. USJesper
 

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