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Enhance Catalog Program with Menu for Data Entry and Display in C#

In this exercise, we will enhance the Catalog program to include a user-friendly menu in the Main method. This menu will allow users to add new items such as music files, films, and computer programs to the catalog, as well as display all the data that has been entered. The program will store the data in an appropriate collection, making it easy to add and view catalog items interactively.

The system will:

- Display a menu allowing the user to select the type of data they want to add or choose to view all stored entries.
- Allow the user to input specific details for each catalog item.
- Store all catalog items in collections and provide a way to retrieve and display them.



Group

Advanced Classes in C#

Objective

1. Implement a main menu with options to add music, film, or program entries.
2. Create methods to input and store data for each catalog item, with fields like name, code, category, size, and additional properties for specific items like director or singer.
3. Allow the user to view all stored catalog items by selecting the appropriate menu option.
4. Ensure that each type of catalog item (music, film, program) is handled separately but within the same menu-driven interface.

Improve the Catalog program, so that "Main" displays a menu to allow entering new data of any kind, as well as displaying all the data stored.

Example C# Exercise

 Copy C# Code 
using System;
using System.Collections.Generic;

// Base class for catalog items
class CatalogItem
{
    public string Name { get; set; }
    public string Code { get; set; }
    public string Category { get; set; }
    public double Size { get; set; }

    // Constructor
    public CatalogItem(string name, string code, string category, double size)
    {
        Name = name;
        Code = code;
        Category = category;
        Size = size;
    }

    // Display method
    public virtual void Display()
    {
        Console.WriteLine($"Name: {Name}, Code: {Code}, Category: {Category}, Size: {Size}MB");
    }
}

// Music class inherits from CatalogItem
class Music : CatalogItem
{
    public string Singer { get; set; }
    public double Length { get; set; }

    // Constructor
    public Music(string name, string code, string category, double size, string singer, double length)
        : base(name, code, category, size)
    {
        Singer = singer;
        Length = length;
    }

    // Display method for music
    public override void Display()
    {
        base.Display();
        Console.WriteLine($"Singer: {Singer}, Length: {Length} seconds");
    }
}

// Film class inherits from CatalogItem
class Film : CatalogItem
{
    public string Director { get; set; }
    public string MainActor { get; set; }
    public string MainActress { get; set; }

    // Constructor
    public Film(string name, string code, string category, double size, string director, string mainActor, string mainActress)
        : base(name, code, category, size)
    {
        Director = director;
        MainActor = mainActor;
        MainActress = mainActress;
    }

    // Display method for film
    public override void Display()
    {
        base.Display();
        Console.WriteLine($"Director: {Director}, Main Actor: {MainActor}, Main Actress: {MainActress}");
    }
}

// Program class to simulate the catalog system
class Program
{
    static List catalog = new List();

    static void Main()
    {
        bool exit = false;

        while (!exit)
        {
            // Display menu
            Console.Clear();
            Console.WriteLine("Catalog Menu");
            Console.WriteLine("1. Add Music");
            Console.WriteLine("2. Add Film");
            Console.WriteLine("3. Display All");
            Console.WriteLine("4. Exit");
            Console.Write("Choose an option: ");
            string choice = Console.ReadLine();

            switch (choice)
            {
                case "1":
                    AddMusic();
                    break;
                case "2":
                    AddFilm();
                    break;
                case "3":
                    DisplayAll();
                    break;
                case "4":
                    exit = true;
                    break;
                default:
                    Console.WriteLine("Invalid choice! Please try again.");
                    break;
            }
        }
    }

    // Method to add music
    static void AddMusic()
    {
        Console.WriteLine("\nEnter Music Details:");
        Console.Write("Name: ");
        string name = Console.ReadLine();
        Console.Write("Code: ");
        string code = Console.ReadLine();
        Console.Write("Category: ");
        string category = Console.ReadLine();
        Console.Write("Size (MB): ");
        double size = double.Parse(Console.ReadLine());
        Console.Write("Singer: ");
        string singer = Console.ReadLine();
        Console.Write("Length (seconds): ");
        double length = double.Parse(Console.ReadLine());

        Music music = new Music(name, code, category, size, singer, length);
        catalog.Add(music);
        Console.WriteLine("\nMusic added successfully!");
        Console.ReadKey();
    }

    // Method to add film
    static void AddFilm()
    {
        Console.WriteLine("\nEnter Film Details:");
        Console.Write("Name: ");
        string name = Console.ReadLine();
        Console.Write("Code: ");
        string code = Console.ReadLine();
        Console.Write("Category: ");
        string category = Console.ReadLine();
        Console.Write("Size (MB): ");
        double size = double.Parse(Console.ReadLine());
        Console.Write("Director: ");
        string director = Console.ReadLine();
        Console.Write("Main Actor: ");
        string mainActor = Console.ReadLine();
        Console.Write("Main Actress: ");
        string mainActress = Console.ReadLine();

        Film film = new Film(name, code, category, size, director, mainActor, mainActress);
        catalog.Add(film);
        Console.WriteLine("\nFilm added successfully!");
        Console.ReadKey();
    }

    // Method to display all catalog items
    static void DisplayAll()
    {
        Console.WriteLine("\nAll Catalog Items:");
        foreach (var item in catalog)
        {
            item.Display();
            Console.WriteLine();
        }
        Console.WriteLine("Press any key to continue...");
        Console.ReadKey();
    }
}

 Output

Catalog Menu
1. Add Music
2. Add Film
3. Display All
4. Exit
Choose an option: 1

Enter Music Details:
Name: Shape of You
Code: SOE123
Category: Pop
Size (MB): 5
Singer: Ed Sheeran
Length (seconds): 233

Music added successfully!

Catalog Menu
1. Add Music
2. Add Film
3. Display All
4. Exit
Choose an option: 3

All Catalog Items:
Name: Shape of You, Code: SOE123, Category: Pop, Size: 5MB
Singer: Ed Sheeran, Length: 233 seconds

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