Assignemnt #44 Two More Questions

Code

     ///Name: JJ Deng
    ///Period: 6
    ///Program name: BMI Categories
    ///File name: BMICategories.java
    ///Date finished: 11/28/15
    
    import java.util.Scanner;
    
    public class BMICategories
    {
        public static void main(String[] args)
        {
            Scanner keyboard = new Scanner(System.in);
            
            double m, kg, bmi;
            String res="";
            
            System.out.print("Your height in meters: ");
            m = keyboard.nextDouble();
            System.out.print("Your weight in kilograms: ");
            kg = keyboard.nextDouble();
            System.out.println("");
            
            bmi = kg/(m*m);
            
            if (bmi < 15.0)
            {
                res = "very severely underweight";
            }
            
            if (bmi >= 15.0 && bmi <= 16.0)
            {
                res = "severely underweight";
            }
            
            if (bmi >= 16.1 && bmi <= 18.4)
            {
                res = "underweight";
            }
            
            else if (bmi >= 18.5 && bmi <= 24.9)
            {
                res = "normal weight";
            }
            
            if (bmi >= 25.0 && bmi <= 29.9)
            {
                res = "overweight";
            }
            
            if (bmi >= 30.0 && bmi <= 34.9)
            {
                res = "moderately obese";
            }
            
            if (bmi >= 35.0 && bmi <= 39.9)
            {
                res = "severely obese";
            }
            
            if (bmi >= 40.0 )
            {
                res = "very severly obese";
            }
            
            System.out.println("Your BMI: " + bmi );
            System.out.println("BMI Category: " + res );
        }
    }
    
     

Picture of the output