Скачать или смотреть Constructor Overloading in C# (Part 28)

Constructor Overloading with examples.

Notes from this video:

Constructor overloading allows a class to have multiple constructors with different parameter lists. This gives us flexibility when creating objects, depending on what data is available at the time.

Constructor overloading is based on:
Different number of parameters
Different types of parameters
Different order of parameters

which constructor will be called decided at compile time based on the arguments passed.

Example

public class Car
{
public string Brand;
public int Price;

// Constructor with no parameters
public Car()
{
Brand = "Default";
Price = 0;
}

// Constructor with one parameter
public Car(string brand)
{
Brand = brand;
Price = 0;
}

// Constructor with two parameters
public Car(string brand, int price)
{
Brand = brand;
Price = price;
}

public void ShowDetails()
{
Console.WriteLine($"Brand: {Brand}, Price: {Price}");
}
}


Car car1 = new Car(); // Uses default constructor
Car car2 = new Car("Toyota"); // Uses constructor with one parameter
Car car3 = new Car("BMW", 50000); // Uses constructor with two parameters

car1.ShowDetails(); // Brand: Default, Price: 0
car2.ShowDetails(); // Brand: Toyota, Price: 0
car3.ShowDetails(); // Brand: BMW, Price: 50000