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

Record declaration syntax

📖 Scenario: You are creating a simple program to store information about a book using a record in C#.

🎯 Goal: Build a C# program that declares a record to hold book details and then creates an instance of that record.

📋 What You'll Learn

Declare a record named Book with two properties: Title and Author, both of type string.

Create an instance of the Book record with the title "The Great Gatsby" and author "F. Scott Fitzgerald".

Print the book's title and author using Console.WriteLine.

💡 Why This Matters

🌍 Real World

Records are useful to store simple data objects like books, people, or products with fixed properties.

💼 Career

Understanding record syntax helps in writing clean and concise data models in C# applications.

1

Declare the Book record

Write a record declaration named Book with two public properties: string Title and string Author.

C Sharp (C#)

// Declare the record Book with Title and Author properties
// Your code here

Need a hint?

Use the syntax public record Book(string Title, string Author); to declare the record.

2

Create an instance of Book

Create a variable named myBook and assign it a new Book instance with Title set to "The Great Gatsby" and Author set to "F. Scott Fitzgerald".

C Sharp (C#)

public record Book(string Title, string Author);

// Create an instance of Book named myBook
// Your code here

Need a hint?

Use Book myBook = new Book("The Great Gatsby", "F. Scott Fitzgerald"); to create the instance.

3

Print the book details

Use Console.WriteLine to print the book's title and author in the format: Title: The Great Gatsby, Author: F. Scott Fitzgerald.

C Sharp (C#)

public record Book(string Title, string Author);

Book myBook = new Book("The Great Gatsby", "F. Scott Fitzgerald");

// Print the book details
// Your code here

Need a hint?

Use string interpolation with $"Title: {myBook.Title}, Author: {myBook.Author}" inside Console.WriteLine.

4

Run the program to see the output

Run the program and observe the output. It should display: Title: The Great Gatsby, Author: F. Scott Fitzgerald.

C Sharp (C#)

using System;

public record Book(string Title, string Author);

class Program
{
    static void Main()
    {
        Book myBook = new Book("The Great Gatsby", "F. Scott Fitzgerald");
        Console.WriteLine($"Title: {myBook.Title}, Author: {myBook.Author}");
    }
}

// Run the program to see the output

Need a hint?

Make sure you run the program and check the console output matches exactly.