CoinPurse.java

public class CoinPurse{
    private int amount;
    public CoinPurse(){
	amount = 0;
    }
    public CoinPurse(int moneyOnHand){
	amount = moneyOnHand;
    }
    public void addTo(Coin c){
	amount = amount + c.getValue();
    }
    public void removeFrom(Coin c){
	amount = amount + c.getValue();
    }
    public int getAmount(){
	return amount;
    }
	
}