Exercise 3.6 — Health Application: BMI | Computer Science Programming Tutorials

Java program ComputeAndInterpretBMI.java, to let the user enter weight, feet, and inches and calculate and interpret the user BMI whether underweight, normal, overweight or obese.


/**<br /> *<br /> * @Author: Aghatise Osazuwa<br /> * Website: www.cscprogrammingtutorials.com<br /> */<br /><br />import java.util.Scanner;<br /><br />public class ComputeAndInterpretBMI {<br />    public static void main (String [] args) {<br />        Scanner input = new Scanner(System.in);<br />        //Prompt the user to enter weight in pounds<br />        System.out.print("Enter weight in pounds: ");<br />        double weight = input.nextDouble();<br />        //Prompt the user to enter height in feet and inches<br />        System.out.print("Enter feet: ");<br />        double feet = input.nextDouble();<br />        System.out.print("Enter inches: ");<br />        double inches = input.nextDouble();<br />        double height = (feet * 12) + inches;<br />        final double KILOGRAMS_PER_POUND = 0.45359237; // Constant<br />        final double METERS_PER_INCH = 0.0254; // Constant<br />        //Compute BMI<br />        double weightInKilograms = weight * KILOGRAMS_PER_POUND;<br />        double heightInMeters = height * METERS_PER_INCH;<br />        double bmi = weightInKilograms / (heightInMeters * heightInMeters);<br />        // Display result<br />        System.out.println("BMI is " + bmi);<br />        if (bmi &lt; 18.5) {<br />            System.out.println("Underweight");<br />        } else if (bmi &lt; 25) {<br />            System.out.println("Normal");<br />        } else if (bmi &lt; 30) {<br />            System.out.println("Overweight");<br />        } else {<br />            System.out.println("Obese");<br />        }<br />    }<br />}<br />

/** * * @Author: Aghatise Osazuwa * Website: www.cscprogrammingtutorials.com */ import java.util.Scanner; public class ComputeAndInterpretBMI { public static void main (String [] args) { Scanner input = new Scanner(System.in); //Prompt the user to enter weight in pounds System.out.print("Enter weight in pounds: "); double weight = input.nextDouble(); //Prompt the user to enter height in feet and inches System.out.print("Enter feet: "); double feet = input.nextDouble(); System.out.print("Enter inches: "); double inches = input.nextDouble(); double height = (feet * 12) + inches; final double KILOGRAMS_PER_POUND = 0.45359237; // Constant final double METERS_PER_INCH = 0.0254; // Constant //Compute BMI double weightInKilograms = weight * KILOGRAMS_PER_POUND; double heightInMeters = height * METERS_PER_INCH; double bmi = weightInKilograms / (heightInMeters * heightInMeters); // Display result System.out.println("BMI is " + bmi); if (bmi < 18.5) { System.out.println("Underweight"); } else if (bmi < 25) { System.out.println("Normal"); } else if (bmi < 30) { System.out.println("Overweight"); } else { System.out.println("Obese"); } } }