Miscellany

/* Only Showing Changed Code */    private int numItems;private double payment;private double purchase;    public CashRegister() {        purchase = 0;        payment = 0;        numItems = 0;    }    public void recordPurchase(double amount) {        purchase = purchase + amount;        numItems++;    }    public int getItemCount() {        return numItems;    }    public double giveChange() {        double change = payment - purchase;        purchase = 0;        payment = 0;        numItems = 0;        return change;    }