// InteractiveBMI.java
// CS 101 class example
// calculates the BMI based on height and weight entered by the user

public class InteractiveBMI {
  
  public static void main(String[] args) {
    if (args.length != 2 ) {
      System.out.println("Usage: java InteractiveBMI <height> <weight>");
    } else {
      
      double height = Double.parseDouble(args[0]);  // in inches
      double weight = Double.parseDouble(args[1]);  // in pounds
      
      // compute BMI
      double bmi = weight / (height * height) * 703;
      
      // print results
      p("Height: " + height);
      p("Weight: " + weight);
      p("BMI: " + bmi);
      commentOnBmi(bmi);
    }
  }
  
  
  
  public static void commentOnBmi (double currentBMI) {
    if (currentBMI < 18.5) {
      p("You seem to be underweight.");
    } else if (currentBMI > 24.9) {
      p("You seem to be overweight.");
    } else {
      p("You seem to be just right. :)");
    }
  }
  
  public static void p (String s) {
    System.out.println(s);
  }
  
}