/**
 * A simple Body Mass Index (BMI) calculator program that uses
 * if-else statements to determine the BMI status of an individual.
 *
 * @author Tyler Wargo
 * @version 1.0
 */

import java.util.Scanner;
public class BMI
{
    public static void main(String[] args)
    {
        //Declare & Initialize Variables/Objects
        String category;
        Scanner in = new Scanner(System.in);

        //Display BMI Calculator heading
        System.out.println("==========================");
        System.out.println("Body Mass Index Calculator");
        System.out.println("==========================\n");

        //Get inputs for BMI results
        System.out.print("Please enter your first and last name (e.g. John Williams): ");
        String name = in.nextLine();
        System.out.print("Please enter your weight in pounds (e.g. 128): ");
        double lb_weight = in.nextDouble();
        System.out.print("Please enter your height in feet and inches (e.g. 5 11): ");
        String feet = in.next();
        String inches = in.next();

        //Calculate variables for BMI
        double m_height = ((Double.parseDouble(feet) * 12) + Double.parseDouble(inches)) * 0.0254; //Convert feet to inches, parse strings, and convert them to a height in meters using a factor
        double kg_weight = lb_weight * 0.4535; //Convert weight in pounds to weight in kilograms
        double bmi = kg_weight / (m_height * m_height); //Calculate BMI (Also squares the heights)

        //Check if BMI if within a certain range and placing it within a category
        if(bmi >= 29.9)
        {
            category = "Obese";
        }
        else if(bmi >= 25.0)
        {
            category = "Overweight";
        }
        else if(bmi >= 18.5)
        {
            category = "Normal or Healthy Weight";
        }
        else
        {
            category = "Underweight";
        }

        //Display BMI Results heading
        System.out.println("\n=======================");
        System.out.println("Body Mass Index Results");
        System.out.println("=======================\n");

        //Display/Output BMI results and information
        System.out.println("Name: " + name);
        System.out.println("Height (m): " + m_height);
        System.out.println("Weight (kg): " + kg_weight);
        System.out.println("BMI: " + bmi);
        System.out.print("Category: " + category);
    }
}