C# Main Function for Calling all classes

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 void Main_Fun()
        {
            int num;
            Program obj = new Program();
            Console.Clear();
            Console.ForegroundColor = ConsoleColor.Green;
            Console.BackgroundColor = ConsoleColor.DarkCyan;
            Console.WriteLine("\n\t\t\t*****VISUAL PROGRAMMING*****");
            Console.WriteLine("\n\t\t\t   ****ASSIGNMENT # 1****\n\n");
            Console.Write("\nIf Run Project (Y/N) ? ");
            obj.choice = Convert.ToChar(Console.ReadLine());
            if (obj.choice != 'Y' && obj.choice != 'y')
            {
                Console.WriteLine("\nSee you Next Time");
            }
            else
            {
                Console.Write("\nEnter the Question No. : ");
                num = Convert.ToInt32(Console.ReadLine());
                switch (num)
                {
                    case 1:
                        obj.Question_1();
                        break;
                    case 2:
                        obj.Question_2();
                        break;
                    case 3:
                        obj.Question_3();
                        break;
                    case 4:
                        obj.Question_4();
                        break;
                    case 5:
                        obj.Question_5();
                        break;
                    case 6:
                        obj.Question_6();
                        break;
                    case 7:
                        obj.Question_7();
                        break;
                    case 8:
                        obj.Question_8();
                        break;
                    case 9:
                        obj.Question_9();
                        break;
                    case 10:
                        obj.Question_10();
                        break;
                    case 11:
                        obj.Question_11();
                        break;
                    case 12:
                        obj.Question_12();
                        break;
                    case 13:
                        obj.Question_13();
                        break;
                    case 14:
                        obj.Question_14();
                        break;
                    case 15:
                        obj.Question_15();
                        break;
                    case 16:
                        obj.Question_16();
                        break;
                    case 17:
                        obj.Question_17();
                        break;
                    case 18:
                        obj.Question_18();
                        break;
                    case 19:
                        obj.Question_19();
                        break;
                    case 20:
                        obj.Question_20();
                        break;
                    case 21:
                        obj.Question_21();
                        break;
                    case 22:
                        obj.Question_22();
                        break;
                    case 23:
                        obj.Question_23();
                        break;
                    case 24:
                        obj.Question_24();
                        break;
                    case 25:
                        obj.Question_25();
                        break;
                    case 26:
                        obj.Question_26();
                        break;
                    case 27:
                        obj.Question_27();
                        break;
                    case 28:
                        obj.Question_28();
                        break;
                    case 29:
                        obj.Question_29();
                        break;
                    case 30:
                        obj.Question_30();
                        break;
                    case 31:
                        obj.Question_31();
                        break;
                    case 32:
                        obj.Question_32();
                        break;
                    case 33:
                        obj.Question_33();
                        break;
                    case 34:
                        obj.Question_34();
                        break;
                    case 35:
                        obj.Question_35();
                        break;
                    case 36:
                        obj.Question_36();
                        break;
                    case 37:
                        obj.QUestion_37();
                        break;
                    case 38:
                        obj.Question_38();
                        break;
                    case 39:
                        obj.Question_39();
                        break;
                    case 40:
                        obj.Question_40();
                        break;
                    case 41:
                        obj.Question_41();
                        break;
                    case 42:
                        obj.Question_42();
                        break;
                    case 43:
                        obj.Question_43();
                        break;
                    case 44:
                        obj.Question_44();
                        break;
                    case 45:
                        obj.Question_45();
                        break;
                    default:
                        Console.WriteLine("\nInvalid Program Number Try Again");
                        break;
                }
            }
        }