Question

The Body Mass Index (BMI) is a calculation used to categorize whether a person’s weight is at a healthy weight for a given height. The formula is as follows:

                bmi = kilograms / (meters²)

                where kilograms = person’s weight in kilograms, meters = person’s height in meters

BMI is then categorized as follows:

Classification	BMI Range
Underweight	Less than 18.5
Normal	18.5 or more, but less than 25.0
Overweight	25.0 or more, but less than 30.0
Obese	30.0 or more

To convert inches to meters:

                meters = inches / 39.37

To convert pounds (lbs) to kilograms:

                kilograms = lbs / 2.2046

Assignment

Ask the user for their weight in pounds and height in inches. Compute their BMI and BMI classification and output the results.

The program must implement and use the following methods:

convertToKilograms – convert pounds to kilograms

convertToMeters – convert inches to meters

calcBMI – take weight in kilograms and height in meters and return the BMI

bmiClassification – take the value for the BMI and return a String with the BMI classification

Use the following code as a starting point for your assignment:

import java.util.Scanner;

// TODO Student name, date, purpose
public class Main {

    private static Scanner input = new Scanner(System.in);

    public static void main(String[] args) {
        double lbs, inches, meters, kgs, bmi;
        String classification;

       // TODO add code here
    }

   // TODO add your methods here (make them static)
}

As always use the package name edu.cscc and include a comment with your name, the date, and the purpose of the program.

Example Output

Calculate BMI

Enter weight (lbs): 200

Enter height (inches): 72

Your BMI is 27.124767811523153

Your BMI classification is Overweight

Answer 1

• Following is the code in JAVA.
• Comments have been added in order to make it understood.

import java.util.Scanner;

// TODO Student name, date, purpose
public class Main {

private static Scanner input = new Scanner(System.in);

public static void main(String[] args) {
double lbs, inches, meters, kgs, bmi;
String classification;
  
// TODO add code here
// Taking input
System.out.print("Enter weight (lbs): ");
lbs = input.nextDouble();
System.out.print("Enter height (inches): ");
meters = input.nextDouble() * 0.0254;  
// Converting pounds to kgs
kgs = lbs/2.2;
// Calculation of BMI
bmi = calculateBMI(kgs, meters);
// Classification of bmi
classification = classify(bmi);
  
System.out.println("Your BMI is " + bmi);
System.out.println("Your BMI classification is " + classification);
}

// TODO add your methods here (make them static)
public static double calculateBMI(double weight, double height) {
   return weight/ (height*height);
}
// Classify the BMI to string
public static String classify(double bmi) {
   if(bmi < 18.5) {
       return "Underweight";
   }else if(bmi < 25.0) {
       return "Normal";
   }else if(bmi < 30.0) {
       return "Overweight";
   }else {
       return "Obese";
   }
}
}

Following is the snippet of the same.

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