Conditional Execution - Building Java Programs: A Back to Basics Approach - page 282

10 Scanner console = new Scanner(System.in);

11 double bmi1 = getBMI(console);

12 double bmi2 = getBMI(console);

13 reportResults(bmi1, bmi2);

14 }

15
16

// introduces the program to the user

17 public static void giveIntro() {

18 System.out.println("This program reads data for two");

19 System.out.println("people and computes their body");

20 System.out.println("mass index and weight status.");

21 System.out.println();

22 }

23
24

// prompts for one person's statistics, returning the BMI

25 public static double getBMI(Scanner console) {

26 System.out.println("Enter next person's information:");

27 System.out.print("height (in inches)? ");

28 double height = console.nextDouble();

29 System.out.print("weight (in pounds)? ");

30 double weight = console.nextDouble();

31 double bmi = BMIFor(height, weight);

32 System.out.println();

33 return bmi;

34 }

35
36

// this method contains the body mass index formula for

37 // converting the given height (in inches) and weight

38 // (in pounds) into a BMI

39 public static double BMIFor( double height, double weight) {

40 return weight / (height * height) * 703;

41 }

42
43 // reports the overall bmi values and weight status

44 public static void reportResults( double bmi1, double bmi2) {

45 System.out.printf("Person #1 body mass index = %5.2f\n", bmi1);

46 reportStatus(bmi1);

47 System.out.printf("Person #2 body mass index = %5.2f\n",bmi2);

48 reportStatus(bmi2);

49 }

50
51 // reports the weight status for the given BMI value

52 public static void reportStatus( double bmi) {

53 if (bmi < 18.5) {