Foreach loop over collections in C Sharp (C#) - Mini Project: Build & Apply

Foreach Loop Over Collections

📖 Scenario: You are helping a small bookstore organize its inventory. The store has a list of book titles, and you want to display each title to the customers.

🎯 Goal: Build a simple C# program that uses a foreach loop to go through a list of book titles and print each one.

📋 What You'll Learn

Create a list of book titles with exact values

Create a variable to count the number of books

Use a foreach loop to iterate over the list of book titles

Print each book title and the total count of books

💡 Why This Matters

🌍 Real World

Foreach loops are used in many programs to process lists of data, like showing items in a store or reading user inputs.

💼 Career

Understanding how to loop over collections is a basic skill for software developers, useful in data processing, UI lists, and more.

1

Create a list of book titles

Create a List<string> called books with these exact titles: "The Hobbit", "1984", "Pride and Prejudice", "To Kill a Mockingbird".

C Sharp (C#)

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        // Create the list of books here
    }
}

Need a hint?

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

2

Create a counter variable

Create an integer variable called count and set it to 0 to keep track of the number of books.

C Sharp (C#)

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        List books = new List { "The Hobbit", "1984", "Pride and Prejudice", "To Kill a Mockingbird" };
        // Create the count variable here
    }
}

Need a hint?

Declare int count = 0; inside the Main method.

3

Use a foreach loop to iterate over the list

Use a foreach loop with the variable book to go through each item in the books list. Inside the loop, print the current book and increase count by 1.

C Sharp (C#)

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        List books = new List { "The Hobbit", "1984", "Pride and Prejudice", "To Kill a Mockingbird" };
        int count = 0;
        // Use foreach loop here
    }
}

Need a hint?

Use foreach (string book in books) and inside the loop write Console.WriteLine(book); and count++;.

4

Print the total number of books

After the foreach loop, print the total number of books using Console.WriteLine with the message: Total books: followed by the count variable.

C Sharp (C#)

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        List books = new List { "The Hobbit", "1984", "Pride and Prejudice", "To Kill a Mockingbird" };
        int count = 0;
        foreach (string book in books)
        {
            Console.WriteLine(book);
            count++;
        }
        // Print total count here
    }
}

Need a hint?

Use Console.WriteLine($"Total books: {count}"); after the loop to show the total.