Delving Further into Object-Oriented Concepts - Beginning Java Programming: The Object-Oriented Approach - page 235

public class Account {
}

3.

Add two instance variables to the Account class:

String name;
BigDecimal amount;

4.

Add a constructor method to set up new Account objects. Your constructor should accept two
String parameters, one for the name and another for the starting amount of the account. Since the
amount variable is a BigDecimal and represents currency, set the scale to two decimal points and
ROUND_HALF_UP for the rounding mode. Your constructor should look like this:

public Account(String acctName, String startAmount) {
this.name = acctName;
this.amount = new BigDecimal(startAmount);
this.amount.setScale(2, BigDecimal.ROUND_HALF_UP);
}

5.

Add another new class called AccountManager . This time, check the box that creates the main
method for you (you can also write the main method yourself after creating the class). Click Finish
to create the class. Your AccountManager class should look something like this:

public class AccountManager {
public static void main(String[] args) {
// TODO Auto-generated method stub
}
}

6.

Remove the // TODO comment, and add a statement inside the main method that creates a new
account with the name FirstAccount and amount 10.00 .

7.

Add print statements to your main method so the user is given information about the account that
you created. Your main method should look like this:

public static void main(String[] args) {
Account myAccount = new Account("FirstAccount","10.00");
System.out.println("Account Created: " + myAccount.name);
System.out.println("Balance: " + myAccount.amount);
}

8.

Now add another statement to change the amount in myAccount to -15.00 . Print this new balance
to the console. Your main method should look similar to this:

public static void main(String[] args) {
Account myAccount = new Account("FirstAccount","10.00");
System.out.println("Account Created: " + myAccount.name);
System.out.println("Balance: " + myAccount.amount);