Bank Account Class

1 /**

2 A bank account has a balance that can be changed by

3 deposits and withdrawals.

4 */

5 public class BankAccount

6 {

7 private double balance;

8

9 /**

10 Constructs a bank account with a zero balance.

11 */

12 public BankAccount()

13 {

14 balance = 0;

15 }

16

17 /**

18 Constructs a bank account with a given balance.

19 @param initialBalance the initial balance

20 */

21 public BankAccount(double initialBalance)

22 {

23 balance = initialBalance;

24 }

25

26 /**

27 Deposits money into the bank account.

28 @param amount the amount to deposit

29 */

30 public void deposit(double amount)

31 {

32 balance = balance + amount;

33 }

34

35 /**

36 Withdraws money from the bank account.

37 @param amount the amount to withdraw

38 */

39 public void withdraw(double amount)

40 {

41 balance = balance - amount;

42 }

43

44 /**

45 Gets the current balance of the bank account.

46 @return the current balance

47 */

48 public double getBalance()

49 {

50 return balance;

51 }

52 }

3. Enhance the BankAccount class of Chapter 3 by: .Rejecting negative parameter amounts in the deposit and withdraw methods. (If they are negative, you should print a statement that says "invalid input" and not perform the operation.) Reject withdrawals that would result in a negative balance. (If the result is negative, you should print a statement that says "overdrawn" and not perform the operation. (You need to provide me with both the tester class and the new BankAccount class.)