Constructors and initialization in C Sharp (C#) - Mini Project: Build & Apply

Constructors and Initialization in C#

📖 Scenario: You are creating a simple program to manage information about books in a library. Each book has a title and an author.

🎯 Goal: Build a Book class with a constructor that initializes the title and author. Then create an instance of Book and display its details.

📋 What You'll Learn

Create a class named Book with two string fields: Title and Author.

Add a constructor to Book that takes two string parameters: title and author.

Inside the constructor, initialize the fields Title and Author with the parameters.

Create an instance of Book named myBook with title "The Hobbit" and author "J.R.R. Tolkien".

Print the book details in the format: "Title: The Hobbit, Author: J.R.R. Tolkien".

💡 Why This Matters

🌍 Real World

Constructors are used in real-world programs to create objects with initial values, like creating user profiles, products, or records.

💼 Career

Understanding constructors is essential for software development jobs because it helps you build reusable and organized code with proper object initialization.

1

Create the Book class with fields

Create a class called Book with two public string fields: Title and Author.

C Sharp (C#)

public class Book
{
    // Your code here
}

Need a hint?

Use public string Title; and public string Author; inside the class.

2

Add a constructor to initialize fields

Add a constructor to the Book class with parameters string title and string author. Inside the constructor, set Title = title and Author = author.

C Sharp (C#)

public class Book
{
    public string Title;
    public string Author;

    // Add constructor here
}

Need a hint?

Constructor name must match the class name Book. Assign parameters to fields inside the constructor.

3

Create an instance of Book

Create an instance of Book named myBook using the constructor with title "The Hobbit" and author "J.R.R. Tolkien".

C Sharp (C#)

public class Book
{
    public string Title;
    public string Author;

    public Book(string title, string author)
    {
        Title = title;
        Author = author;
    }
}

// Create myBook instance here

Need a hint?

Use new Book("The Hobbit", "J.R.R. Tolkien") to create the instance.

4

Print the book details

Print the details of myBook in the format: "Title: The Hobbit, Author: J.R.R. Tolkien" using Console.WriteLine and string interpolation.

C Sharp (C#)

public class Book
{
    public string Title;
    public string Author;

    public Book(string title, string author)
    {
        Title = title;
        Author = author;
    }
}

Book myBook = new Book("The Hobbit", "J.R.R. Tolkien");

// Print book details here

Need a hint?

Use Console.WriteLine($"Title: {myBook.Title}, Author: {myBook.Author}") to print.