Java Reference
In-Depth Information
143
ch04/cashregister/CashRegister.java
1 /**
2
A cash register totals up sales and computes change due.
3 */
4
public class
CashRegister
5 {
6 /**
7
Constructs a cash register with no money in it.
8 */
9
public
CashRegister()
10 {
11 purchase =
0
;
12 payment =
0
;
13 }
14
15 /**
16
Records the purchase price of an item.
17 @param amount
the price of the
purchased item
18 */
19
public void
recordPurchase(
double
amount)
20 {
21 purchase = purchase + amount;
22 }
23
24 /**
25
Enters the payment received from the customer.
26 @param dollars
the number of dollars in the payment
27 @param quarters
the number of quarters in the
payment
28 @param dimes
the number of dimes in the payment
29 @param nickels
the number of nickels in the payment
30 @param pennies
the number of pennies in the
payment
31 */
32
public void
enterPayment(
int
dollars,
int
quarters,
33
int
dimes,
int
nickels,
int
pennies)
34 {
