Java Reference
In-Depth Information
Here is a class to run methods of the
BankAccount
class. The
main
method
constructs an object of type
BankAccount
, invokes the
deposit
and
withdraw
methods, and then displays the remaining balance on the console.
We also print the value that we expect to see. In our sample program, we deposit
$2,000 and withdraw $500. We therefore expect a balance of $1500.
ch03/account/BankAccountTester.java
1 /**
2
A class to test the BankAccount class.
3 */
4
public class
BankAccountTester
5 {
6 /**
7
Tests the methods of the BankAccount
class.
8 @param args
not used
9 */
10
public static void
main(String[] args)
11 {
12 BankAccount harrysChecking =
new
BankAccount();
13 harrysChecking.deposit(
2000
);
14 harrysChecking.withdraw(
500
);
15 System.out.println(harrysChecking.getBalance
16 System.out.println(
"Expected: 1500"
);
17 }
18 }
Output
1500
Expected: 1500
To produce a program, you need to combine the
BankAccount
and the
BankAccountTester
classes. The details for building the program depend on
your compiler and development environment. In most environments, you need to
carry out these steps:
1. Make a new subfolder for your program.
