Java Arithmetic Operator Body Mass Index Calculator(BMI)

Question

We would like to calculate Body Mass Index Calculator(BMI)

The formulas for calculating BMI are 

for imperial/*from ww w  .  j  a va 2 s . com*/
         weightInPounds times  703 
BMI = ------------------------------------
      heightInInches times heightInInches 


for metric

               weight In Kilograms 
BMI = ------------------------------------
      heightInMeters times heightInMeters 



import java.util.Scanner;

public class Main {

  public static void main(String[] args) {

    Scanner input = new Scanner(System.in);
    int weight;
    int height;
    int bmi;
    
    System.out.print("Enter your weight in kilograms: ");
    weight = input.nextInt();
    System.out.print("Enter your height in meters: ");
    height = input.nextInt();
    
    bmi = weight / (height * height);
    
    System.out.printf("Your BMI = %d%n", bmi);
    System.out.println("BMI VALUES");
    System.out.println("Underweight: less then 18.5");
    System.out.println("Normal:      between 18.5 and 24.9");
    System.out.println("Overweight:  between 25 and 29.9");
    System.out.println("Obese:       30 or greater");
    
    input.close();
  }

}

Note

To support two systems:imperial and metric 


import java.util.Scanner;

public class Main{
    public static void main(String[] args){
        Scanner input = new Scanner(System.in);

        double weight, height, bmi;
        int choice;

        System.out.print("BMI calculator: 1 for imperial, 2 for metric: ");
        choice = input.nextInt();/*www.j  ava2  s  .co m*/

        System.out.printf("Input weight in %s: ",
                (choice == 1) ? "pounds" : "kilograms");
        weight = input.nextDouble();

        System.out.printf("Input height in %s: ",
                (choice == 1) ? "inches(ft * 12 * in)" : "metres");
        height = input.nextDouble();

        bmi = (choice == 1) ? calculateImperial(weight, height) : calculateMetric(weight, height);

        System.out.printf("Your BMI : %.1f\n", bmi);
        printBmiTable();
    }

    // calculate using imperial measures
    private static double calculateImperial(double weight, double height){
        return ((weight * 703) / (height * height));
    }
    // calculate using metric measures
    private static double calculateMetric(double weight, double height){
        return weight / (height * height);
    }
    // print BMI information from Department of Health and Human Services /
    // National Institutes of Health.
    private static void printBmiTable(){
        System.out.printf("BMI VALUES:");
        System.out.println("Underweight: less than 18.5");
        System.out.println("Normal:      between 18.5 and 24.9");
        System.out.println("Overweight:  between 25 and 29.9");
        System.out.println("Obese:       30 or greater");
    }
}



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