tugas OOPS chalculate

using System;

namespace Calculation  #nama project

{

            class CalculateNumber   #Merupakan Nama class

            {

                        int Number1, Number2;   #Baris kode ini merupakan inisialisasi

                        char option;   #Variabel option bertipe char

                        int Result;   #variabel Result bertipe int

                        public void Number()

                        {

                                     Console.WriteLine("Enter the First number");  #Komputer terlebih dahulu                                                                                                                               meminta inputan berupa angka                                                                                                                    pertama yang diinputkan

                                    Number1 = Convert.ToInt32(Console.ReadLine());  #pengkonversian atau                                                                                                                                     pengubahan

                                   

                                    Console.WriteLine("Enter the second number"); #angka kedua yang diinputkan                                                                                                                                                  

                                    Number2 = Convert.ToInt32(Console.ReadLine());

                                   

                                    Console.WriteLine("Main Menu"); # Menampilkan Main menu

                                    Console.WriteLine("1.Additon"); # Menampilkan bahwa no 1 adalah                                                                                                                           addition(penambahan)

                                    Console.WriteLine("2.Subtraction"); # Menampilkan bahwa no 2 adalah                                                                                                               Subtraction(pengurangan)

                                    Console.WriteLine("3.Multiaplication"); # Menampilkan bahwa no 3 adalah                                                                                                                          Multiaplication(perkalian)

                                    Console.WriteLine("4.Division");# Menampilkan bahwa no 4 adalah                                                                                                                              Division (pembagian)

                                    Console.WriteLine("Enter the Operation you want to perform");

                                    option = Convert.ToChar(Console.ReadLine());

                                    switch (option) # sebuah konstrak untuk memilih salah 1 dari beberapa pilihan variabel yang tersedia

                                    {

                                                case '1':

                                                            Result = Number1 + Number2; #baris kode ini untuk                                                                                                                                   menampilkan proses hasil                                                                                                                  penambahan

                                                            Console.WriteLine("The result of addition is:{0}", Result);

                                                break; #untuk proses penjedaan atau pemberhentian

                                                case'2':

                                                            Result = Number1 - Number2;#baris kode ini untuk                                                                                                                                     menampilkan proses hasil                                                                                                                  pengurangan

                                                            Console.WriteLine(" The result of subtraction is:{0}", Result);

                                                break;

                                                case'3':

                                                            Result = Number1 * Number2;#baris kode ini untuk                                                                                                                                    menampilkan proses hasil                                                                                                                  perkalian

                                                            Console.WriteLine(" The result of Multiaplication is:{0}", Result);

                                                break;

                                                case'4':

                                                            Result = Number1 / Number2; # baris kode ini untuk                                                                                                                                   menampilkan proses hasil                                                                                                                  pembagian

                    Console.WriteLine(" The result of Division is:{0}", Result);

                                                break;

                                                default:

                                                            Console.WriteLine("Invalid Option");

                                                break;

                                    }

                                    Console.ReadLine(); #untuk membaca outputan

                        }

            }

            class ClassMain

            {

static void Main (string[] args) #Fungsi/method Main() Inilah yang akan dipanggil ketika Aplikasi   yang kita buat dijalankan.Oleh karena itu, kita menuliskan setiap  Langkah utama dari aplikasi kita pada bagian ini

                        {

                                    CalculateNumber obj = new CalculateNumber();

                                    obj.Number();

                        }

            }

}