Oct4, Week5, Assignment No 1

/*
string studentName = "Alim Momin";
string studentNumber = "C0744374";
int AssignmentNumber = 1;
 */


using System;

namespace Assignment
{
    class Program
    {
        static void Main(string[] args)
        {
            Hello hello = new Hello();
            hello.Launch();
            Console.ReadLine();
        }
    }
    class Hello
    {
        public string myName = "C#";
        int num1, num2;

        private void SayHello()
        {
            Console.WriteLine("Hello, my name is "+ myName);
        }

        public void Launch()
        {
            this.SayHello();
            this.GetUserInput();
            if (this.ValidateInput())
            {
                Console.WriteLine("The sum is "+this.CalculateNumber());
            }
            else
            {
               // this.GetUserInput();
                while (!ValidateInput())
                {
                    this.GetUserInput();
                }
                Console.WriteLine("The sum is "+this.CalculateNumber());
            }
        }        

        private int CalculateNumber()
        {
            int intermediateValue = num1;
            int sum = 0;

            while(intermediateValue > num2)
            {
                sum += intermediateValue;
                intermediateValue -= 3;
            }
            return sum;
        }

        private void GetUserInput()
        {
            //ask for 2 numbers and tell them first should be greater than second
            Console.WriteLine("Give me 2 numbers: The first should be bigger than second");
            Console.WriteLine("Enter the first Number: ");
            num1 = int.Parse(Console.ReadLine());
            Console.WriteLine("Enter the second Number: ");
            num2 = int.Parse(Console.ReadLine());
            //show the entered values
            Console.WriteLine("Your first number is {0} and second number is {1}", num1, num2);
        }

        private bool ValidateInput()
        {
            if(num1 > num2)
            {
                return true;
            }else
                return false;
        }   
    }
}