CoinPurse.java

import java.io.*;
import java.util.*;

public class CoinPurse {
    private double amount;
    
    public CoinPurse() {
	amount = 0.00;

    }

    public void addTo (Coin c) {
	amount = amount + c.getValue();

    }

    public void removeFrom (Coin c) {
	amount = amount - c.getValue();

    }

    public double getAmount() {
	return amount;

    }			

}