Manipulating Data Using Methods - Java Programming: Comprehensive Concepts and Techniques - page 199

BodyMass.java 10/20/2007

1 /*
2 Chapter 3: The Body Mass Index Calculator

3 Programmer: J. Starks

4 Date: October 20, 2007

2

5 Filename: BodyMass.java

6 Purpose: This project calculates the body mass index based

7 on a person's height and weight.

8 */
9
10 import java.io.*;
11
12 public class BodyMass
13 {
14

3

public static void main ( String [] args ) throws IOException

15 {

4

16 // declare and construct variables

17 String height, weight;

18 int inches, pounds;

1

19 double kilograms, meters, index;

5

20 BufferedReader dataIn= new BufferedReader ( new

InputStreamReader ( System .in )) ;

21
22 // print prompts and get input

23 System .out.println ( "\tTHE SUN FITNESS CENTER BODY MASS INDEX CALCULATOR" ) ;

24 System .out.println () ;

25 System .out.print ( "\t\tEnter you r height t o the nearest inch: " ) ;

6

26 height = dataIn.readLine () ;

27 inches = Integer .parseInt ( height ) ;

28 System .out.print ( "\t\tEnter your weight to the nearest pound: " ) ;

29 weight = dataIn.readLine () ;

7

30 pounds = Integer .parseInt ( weight ) ;

31
32 // calculations

8

33 meters = inches / 39.36;

34 kilograms = pounds / 2.2;

35 index = kilograms / Math .pow ( meters,2 ) ;

36
37 // output

38 System .out.println () ;

39 System .out.println ( "\tYOUR BODY MASS INDEX IS " + Math .round ( index ) +

"." ) ;

10

40 System .out.println () ;

41 }

42 }

9

FIGURE 3-52

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