List methods (Add, Remove, Find, Sort) in C Sharp (C#) - Mini Project: Build & Apply

List methods (Add, Remove, Find, Sort)

📖 Scenario: You are managing a small library's book collection. You want to keep track of book titles, add new books, remove old ones, find specific books, and keep the list sorted alphabetically.

🎯 Goal: Build a simple C# program that uses a list of book titles and applies common list methods: Add, Remove, Find, and Sort.

📋 What You'll Learn

Create a list of strings called books with exact initial titles

Add a new book title to the books list

Remove a specific book title from the books list

Find a book title in the books list using Find

Sort the books list alphabetically

Print the final sorted list of books

💡 Why This Matters

🌍 Real World

Managing collections of items like books, products, or contacts often requires adding, removing, searching, and sorting data.

💼 Career

These list methods are fundamental in many programming jobs, especially when working with collections of data in applications.

1

Create the initial list of books

Create a list of strings called books with these exact titles: "The Hobbit", "1984", "Brave New World", "Fahrenheit 451".

C Sharp (C#)

# Create the list of books with the exact titles
# Your code here

Need a hint?

Use List<string> and initialize it with the four book titles inside curly braces.

2

Add a new book to the list

Add the book title "Animal Farm" to the books list using the Add method.

C Sharp (C#)

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        List books = new List { "The Hobbit", "1984", "Brave New World", "Fahrenheit 451" };
        // Add "Animal Farm" to the books list
        // Your code here
    }
}

Need a hint?

Use books.Add("Animal Farm") to add the new book.

3

Remove a book from the list

Remove the book titled "1984" from the books list using the Remove method.

C Sharp (C#)

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        List books = new List { "The Hobbit", "1984", "Brave New World", "Fahrenheit 451" };
        books.Add("Animal Farm");
        // Remove "1984" from the books list
        // Your code here
    }
}

Need a hint?

Use books.Remove("1984") to remove the book.

4

Find and sort the books, then print the list

Use the Find method on books to find the book titled "Animal Farm" and store it in a variable called foundBook. Then sort the books list alphabetically using Sort. Finally, print each book title on its own line using a foreach loop.

C Sharp (C#)

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        List books = new List { "The Hobbit", "1984", "Brave New World", "Fahrenheit 451" };
        books.Add("Animal Farm");
        books.Remove("1984");
        // Find "Animal Farm" and store in foundBook
        // Sort the books list
        // Print each book title
        // Your code here
    }
}

Need a hint?

Use string foundBook = books.Find(book => book == "Animal Farm") to find the book. Then call books.Sort(). Use a foreach loop to print each book.