Constructor In C++ | Use Of Constructor In C++ | Definition Of Constructor In C++| Feature Of Constructor In C++| Constructor In C++ In Hindi

Constructor In C++

A constructor is a member function of a class which initializes objects of a class. In C++, Constructor is automatically called when object(instance of class) create. It is special member function of the class.

·         Constructor has same name as the class itself

·         Constructors don’t have return type

·         A constructor is automatically called when an object is created.

·   If we do not specify a constructor, C++ compiler generates a default constructor for us (expects no parameters and has an empty body).

 

Fig:Constructor In C++

Synatx:

class class name

{

private:

----

----

public:

class name();

data member;

member function;

};

 

Program: 

class BCA

{

private:

int a,b,c;

public:

BCA();//constructor create

void getdata();

};

Feature Of Constructor In C++

·        Constructors are the special members of the class which initialize the 

     object of class.

• A constructor is automatically invoked at the creation of the object.
• It is generally used to initialize variables.
• It has the same name as of class.

It does not have any return type(i.e. void, int, etc).