Decision Making and Repetition with Reusable Objects - Java Programming: Comprehensive Concepts and Techniques - page 260

2. Enter lines 106 through 113 as shown in Figure 4-30 on the previous
page.
TextPad displays the output() method in the coding window (Figure 4-32).

defines pattern
for formatting
numeric output

output()
method

twoDigits.format()
method applies
pattern to sales
and commission
values

FIGURE 4-32

The DecimalFormat class contains many useful methods to change numeric
formatting symbols. For example, instead of formatting a number in the form:
4,200,923.25
Some European countries use different numeric conventions, such as using a
comma instead of a period to separate decimal values and a period instead of a
comma as the grouping or thousands separator, in the form:
4.200.923,25
The DecimalFormat class offers a great deal of flexibility in the formatting of
numbers.

The finish() Method

Finally, the main() method must call the finish() method to exit the system
when the program is completed successfully. The complete main() method dis-
plays in Figure 4-33, including a call to the finish() method in line 26.

15 public static void main ( String [] args )

16 {

17 //declare class variables

18 double dollars, answer;

19 int empCode;

20
21 //call methods

22 dollars = getSales () ;

23 empCode = getCode () ;

24 answer = getComm ( dollars,empCode ) ;

25 output ( answer, dollars ) ;

26 finish () ;

27 }

28

FIGURE 4-33