Çàäà÷à . 37381

Question is based on the Coin and Purse classes given below:

/* A simple coin class */
public class Coin
{
    private double value;
    private String name;

    //constructor
    public Coin(double coinValue, String coinName)
    {
       value = coinValue;
       name = coinName;
    }
   
    /** @return the value of this coin */
    public double getValue()
    { return value; }
    
    /** @return the name of this coin */
    public String getName()
    { return name; }

    /** @param obj a Coin object
    * @return true if this coin equals obj; otherwise false
    */
    public boolean equals(Object obj)
    { return name.equals(((Coin) obj).name); }
    
    //Other methods are not shown.
}

/* A purse holds a collection of coins */
public class Purse
{
    private List<Coin> coins;
    
    /** Creates an empty purse. */
    public Purse()
    { coins = new ArrayList<Coin>(); }

    /** Adds aCoin to the purse.
    * @param aCoin the coin to be added to the purse
    */
    public void add(Coin aCoin)
    { coins.add(aCoin); }

    /** @return the total value of coins in purse */
    public double getTotal()
    { /* implementation not shown */}
}

Here is the getTotal method from the Purse class:

/** @return the total value of coins in purse */
public double getTotal()
{
    double total = 0;
    /* more code */
    return total;
}

Which of the following is a correct replacement for /* more code */?
(A)

 for (Coin c : coins)
{
   c = coins.get(i);
   total += c.getValue();
}

(B)

for (Coin c : coins)
{
   Coin value = c.getValue();
   total += value;
}

(C)

for (Coin c : coins)
{
   Coin c = coins.get(i);
   total += c.getValue();
}

(D)

 for (Coin c : coins)
{
   total += coins.getValue();
}

(E)

for (Coin c : coins)
{
   total += c.getValue();
}