Class declaration syntax in C Sharp (C#) - Mini Project: Build & Apply

Class declaration syntax

📖 Scenario: You are creating a simple program to represent a book in a library system.

🎯 Goal: Build a class called Book with basic properties to hold book information.

📋 What You'll Learn

Create a class named Book

Add a public string property called Title

Add a public string property called Author

Add a public int property called Year

Create an instance of Book with specific values

Print the book details using the instance

💡 Why This Matters

🌍 Real World

Classes are used to model real-world objects in software, like books in a library system.

💼 Career

Understanding class declaration is fundamental for any C# developer to organize and structure code effectively.

1

Create the Book class

Write a class declaration named Book with no properties or methods yet.

C Sharp (C#)

// Your code here
// Declare a class named Book

Need a hint?

Use the class keyword followed by the class name Book.

2

Add properties to the Book class

Inside the Book class, add three public properties: string Title, string Author, and int Year.

C Sharp (C#)

public class Book
{
    // Your code here
    // Add public properties Title, Author, and Year
}

Need a hint?

Use auto-implemented properties with get; set;.

3

Create an instance of Book

Create a variable named myBook of type Book and set its Title to "The Great Gatsby", Author to "F. Scott Fitzgerald", and Year to 1925.

C Sharp (C#)

public class Book
{
    public string Title { get; set; }
    public string Author { get; set; }
    public int Year { get; set; }
}

// Create an instance of Book named myBook and set properties

Need a hint?

Use object initializer syntax to set properties when creating myBook.

4

Print the book details

Write a Console.WriteLine statement to print the book details in the format: "Title: The Great Gatsby, Author: F. Scott Fitzgerald, Year: 1925" using the myBook instance.

C Sharp (C#)

public class Book
{
    public string Title { get; set; }
    public string Author { get; set; }
    public int Year { get; set; }
}

Book myBook = new Book
{
    Title = "The Great Gatsby",
    Author = "F. Scott Fitzgerald",
    Year = 1925
};

// Print the book details using Console.WriteLine

Need a hint?

Use string interpolation with $"..." to include property values in the output.