Question

In Java

The following equations estimate the calories burned when exercising (source):

Women: Calories = ( (Age x 0.074) — (Weight x 0.05741) + (Heart Rate x 0.4472) — 20.4022 ) x Time / 4.184

Men: Calories = ( (Age x 0.2017) + (Weight x 0.09036) + (Heart Rate x 0.6309) — 55.0969 ) x Time / 4.184

Write a program using inputs age (years), weight (pounds), heart rate (beats per minute), and time (minutes), respectively. Output calories burned for women and men.

Output each floating-point value with two digits after the decimal point, which can be achieved as follows:
System.out.printf("%.2f", yourValue);

Ex: If the input is:

49 155 148 60

the output is:

Women: 580.94 calories
Men: 891.47 calories

Answer 1

import java.util.Scanner;

public class LabProgram {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        double age = in.nextDouble();
        double weight = in.nextDouble();
        double rate = in.nextDouble();
        double time = in.nextDouble();
        double women = (age * 0.074 - weight * 0.05741 + rate * 0.4472 - 20.4022) * time / 4.184;
        double men = (age * 0.2017 + weight * 0.09036 + rate * 0.6309 - 55.0969) * time / 4.184;
        System.out.printf("Women: %.2f calories\n", women);
        System.out.printf("Men: %.2f calories\n", men);
    }
}