TestProject

using System;
using System.Timers;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TestingProject
{
    class Program
    {
        public static string ID, Password, Answer;
        public static int Error = 3;
        static void Main()
        {
            Console.WriteLine("_______________________________________________________________________________________________");
            Console.WriteLine("|                                                                                             |");
            Console.WriteLine("|Available Programs: All, BinaryConversion, LoginAttempt, NumberTriangle, NameandSum, Counter.|");
            Console.WriteLine("|_____________________________________________________________________________________________|");
            Console.Write("Choose a program: ");
            Answer = Console.ReadLine();
            if (Answer == "All")
            {
                GetIDandPass();
                Console.WriteLine();
                BinaryConversion();
                Console.WriteLine();
                NumberTriangle();
                Console.WriteLine();
                NameandSum();
                Console.WriteLine();
                Reset();
            }
            if (Answer == "BinaryConversion")
            {
                BinaryConversion();
                Console.WriteLine();
                Reset();
            }
            if (Answer == "LoginAttempt")
            {
                GetIDandPass();
                Console.WriteLine();
                Reset();
            }
            if (Answer == "NumberTriangle")
            {
                NumberTriangle();
                Console.WriteLine();
                Reset();
            }
            if (Answer == "NameandSum")
            {
                NameandSum();
                Console.WriteLine();
                Reset();
            }
            if (Answer == "Counter")
            {
                Counter();
                Console.WriteLine();
                Reset();
            }
        }

        static void LoginAttempt()
        {
            Console.Write("Please login with the format <username> <password>: ");
            string Login = Console.ReadLine();
            if (Login != ID + " " + Password)
            {
                if (Error >= 1)
                {
                    Console.Clear();
                    Console.WriteLine("Please try again. You have " + (Error - 1) + " tries left.");
                    Error -= 1;
                }
                if (Error < 1)
                {
                    Console.WriteLine("Terminating Command Window.");
                    Environment.Exit(0);
                }
                LoginAttempt();
            }
            if (Login == ID + " " + Password)
            {
                Console.WriteLine("Welcome, " + ID);
            }
        }
        static void NumberTriangle()
        {
            Console.Write("Enter a number that is less than 15: ");
            int PastaNum = Convert.ToInt32(Console.ReadLine());
            Console.Write("Enter the width that is less than 15: ");
            int width = Convert.ToInt32(Console.ReadLine());
            if (PastaNum < 15 && width < 15)
            {
                int height = width;
                for (int row = 0; row < height; row++)
                {
                    for (int column = 0; column < width; column++)
                    {
                        Console.Write(PastaNum);
                    }
                    Console.WriteLine();
                    for (int spacer = 0; spacer < width; spacer++)
                    {
                        Console.Write("~");
                    }
                    Console.WriteLine();
                    width--;
                }
            } else
            {
                Console.WriteLine("Please use smaller numbers.");
                NumberTriangle();
            }
        }
        static void NameandSum()
        {
            Console.Write("Please enter your first name: ");
            string FirstName = Console.ReadLine();
            Console.Write("Please enter your last name: ");
            string LastName = Console.ReadLine();
            Console.Write("Enter a number: ");
            string NumOne = Console.ReadLine();
            long NumOne64Bit = Convert.ToInt64(NumOne);
            Console.Write("Enter another number: ");
            string NumTwo = Console.ReadLine();
            long NumTwo64Bit = Convert.ToInt64(NumTwo);
            long Sum64 = NumOne64Bit + NumTwo64Bit;
            string YourSum = ("The sum of " + NumOne + " and " + NumTwo + " is: " + Sum64 + ". Good job " + FirstName + " " + LastName + "!");
            Console.WriteLine(YourSum);
        }
        static void BinaryConversion()
        {
            Console.Write("Enter a big number: ");
            int Num = Convert.ToInt32(Console.ReadLine());
            string Result = "";
            while (Num >1)
            {
                int Remainder = Num % 2;
                Result = Convert.ToString(Remainder) + Result;
                Num /= 2;
            }
            Result = Convert.ToString(Num) + Result;
            Console.WriteLine("Binary: {0}", Result);
        }
        static void GetIDandPass()
        {
            Console.Write("Please enter your username: ");
            ID = Console.ReadLine();
            Console.Write("Pleas enter your password: ");
            Password = Console.ReadLine();
            LoginAttempt();
        }
        static void Reset()
        {
            Answer = null;
            Main();
        }
        static void Counter()
        {
            Console.Write("Please enter a number: ");
            int Num = Convert.ToInt32(Console.ReadLine());
            Console.WriteLine();
            Console.Write("|  " + Num + "  |  ");
            for (int i = 0; i < 10; i++)
            {
                System.Threading.Thread.Sleep(500);
                Console.Write((Num *= 2) + "  |  ");
            }
        }
    }
}