C sharp - Constructor in C#

A constructor is a special method in a class that is automatically invoked when an object of the class is created. It is used to initialize objects.

Syntax

class ClassName
{
    public ClassName()
    {
        // Initialization code
    }
}

• The constructor name must match the class name.

• It has no return type, not even void.

Types of Constructors in C#

1. Default Constructor

• Takes no parameters.

• Automatically provided if no constructor is defined explicitly.

2. Parameterized Constructor

• Accepts arguments to initialize object fields with specific values.

3. Copy Constructor

• Used to create a new object by copying values from an existing object of the same class.

4. Static Constructor

• Initializes static data members.

• Executes only once, when the class is first accessed.

• Cannot take parameters.

5. Private Constructor

• Used to restrict object creation from outside the class.

• Commonly used in Singleton patterns.