Introduction :
In this blog we will see the primary constructors in c#.
What is a constructor in C#?
A constructor is a particular class method that is invoked whenever a new instance of the class is created. A constructor, like a method, contains a set of instructions that are executed when an object is created. It is used to initialize the values for data members of the same class.
Types of Constructors in C#:
There are 5 Types of Constructors in C#, they are:
1.Default Constructor
2.Parameterized Constructor
3.Copy Constructor
4.Private Constructor
5.Static Constructor
Default Constructor :
A “default constructor” is a constructor that takes no input arguments. In a default constructor, each class instance must be initialized with the same data. Within a class, the default constructor sets all numeric fields to zero and all string and object fields to null.
Parameterized Constructor:
A parameterized constructor is a constructor that has at least one argument. It has the ability to set different values for each instance of the class.
Copy Constructor:
This constructor creates an object by copying variables from another object. Its principal function is to set a new instance’s values to those of an existing one.
Private Constructor:
A private constructor is one that was created using the private specifier. Other classes cannot inherit from this class, and no instance of this class can be created.
Static Constructor:
This constructor is invoked only once in the class, when the first reference to a static member of the class is made, which is when the static constructor is invoked. A static constructor is used only once to initialise the class’s static fields or data.
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