Pilot Example

main.java

package com.company;

public class Main {

    public static void main(String[] args) {
        // write your code here

        String badNumber = "ABC123";
        String goodNumber = "423-867-5309";

        /** This will NOT be generated because the number fails! */
        if(isValidNumber(badNumber)) {
            System.out.println("You will never see me!");
            Pilot badPilot = new Pilot(badNumber);
        }

        if(isValidNumber(goodNumber)){
            System.out.println("Good Pilot created!");
            Pilot goodPilot = new Pilot(goodNumber);
            System.out.println("\t" + goodPilot);
        }

    }

    private static boolean isValidNumber(String number) {
        String pattern = "(\\d{3}-)?\\d{3}-\\d{4}";
        if (number.matches(pattern))
            return true;

        return false;
    }


    public static class Pilot {

        public Pilot(String phoneNumber) {
            System.out.println("I am a Pilot class!");
            System.out.println("Pilot class received number " + phoneNumber);
        }
    }
}