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

Record inheritance

📖 Scenario: You are creating a simple program to manage information about vehicles. You want to use C# records to store data about a general vehicle and a more specific type of vehicle, a car.

🎯 Goal: Build a small program that defines a base record Vehicle and a derived record Car that inherits from Vehicle. Then create an instance of Car and display its details.

📋 What You'll Learn

Define a record called Vehicle with properties Make and Year.

Define a record called Car that inherits from Vehicle and adds a property Model.

Create an instance of Car with specific values for Make, Year, and Model.

Print the details of the Car instance.

💡 Why This Matters

🌍 Real World

Record inheritance helps organize related data types in programs, like different kinds of vehicles, while sharing common properties.

💼 Career

Understanding record inheritance is useful for writing clean, maintainable code in C# applications, especially in domains like software modeling and data handling.

1

Create the base record Vehicle

Write a record called Vehicle with two properties: string Make and int Year. Use positional parameters in the record definition.

C Sharp (C#)

# Define the record Vehicle with Make and Year

Need a hint?

Use the syntax public record Vehicle(string Make, int Year); to create a record with two properties.

2

Create the derived record Car

Write a record called Car that inherits from Vehicle. Add a new property string Model using positional parameters. Make sure Car calls the base record constructor for Make and Year.

C Sharp (C#)

public record Vehicle(string Make, int Year);

# Define the record Car that inherits Vehicle and adds Model

Need a hint?

Use public record Car(string Make, int Year, string Model) : Vehicle(Make, Year); to inherit and add a property.

3

Create an instance of Car

Create a variable called myCar and assign it a new Car object with Make as "Toyota", Year as 2022, and Model as "Corolla".

C Sharp (C#)

public record Vehicle(string Make, int Year);

public record Car(string Make, int Year, string Model) : Vehicle(Make, Year);

# Create an instance of Car named myCar

Need a hint?

Use Car myCar = new Car("Toyota", 2022, "Corolla"); to create the object.

4

Print the Car details

Write a Console.WriteLine statement to print the myCar object. This will show all property values.

C Sharp (C#)

public record Vehicle(string Make, int Year);

public record Car(string Make, int Year, string Model) : Vehicle(Make, Year);

Car myCar = new Car("Toyota", 2022, "Corolla");

# Print the myCar details

Need a hint?

Use Console.WriteLine(myCar); inside a Main method to print the record.