try catch bmi weight

  package edu.cscc;

import java.util.Scanner;

// Nicholas Rigsby, 09/22/2020, This program will output a bmi and classification based on entered values
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;

        System.out.println ("Calculate BMI");
        lbs = inputWeight();
        inches = inputHeight();
        kgs = convertToKilograms (lbs);
        meters = convertToMeters (inches);
        bmi = calcBMI (meters, kgs);
        classification = bmiClassification (bmi);
        System.out.print ("Your BMI is: " +bmi+ "\n");
        System.out.print ("Your BMI classification is: " +classification);
    }


    //Checks for valid weight input
    public static double inputWeight() {
        boolean weightError = true;

        do {
            System.out.print("Enter weight (lbs): ");
            String strLbs = input.nextLine();


            try {
                double lbs = Double.parseDouble(strLbs);
                weightError = false;
                return lbs;

            } catch (NumberFormatException e) {
                System.out.print("invalid input");
            }
        } while (weightError);

        return lbs;
    }

    //Checks for valid height input
    public static double inputHeight(){
        boolean heightError = true;

        do{
            System.out.print("Enter height (in): ");
            String strIn = input.nextLine();

            try {
                double inches = Double.parseDouble(strIn);
                heightError = false;
                return inches;

            }catch (NumberFormatException e){
                System.out.print("invalid input");

            }
        }while(heightError);

        return inches;
    }



    // Converts weight from pounds to kilograms
    public static double convertToKilograms (double lbs) {
        double kgs;
        kgs = lbs / 2.2046;
        return kgs;
    }
    //Converts height from inches to meters
    public static double convertToMeters (double inches) {
        double meters;
        meters = inches / 39.37;
        return meters;
    }
    //Calculates BMI based on weight and height conversions
    public static double calcBMI (double meters, double kgs){
        double bmi;
        bmi = kgs/Math.pow(meters,2);
        return bmi;
    }
    //Calculates BMI classification
    public static String bmiClassification(double bmi) {
        String classification;
        if (bmi<18.5)
            classification = "Underweight";
        else if (bmi<25.0)
            classification = "Normal";
        else if (bmi<30.0)
            classification = "Overweight";
        else
            classification = "Obese";
        return classification;
    }

    }