Constructors are member functions that initialize objects when they are created. They do not have a return type and are called automatically upon object creation with the same name as the class. There are three types of constructors: default, parameterized, and copy. The default constructor takes no arguments, parameterized constructors allow passing values during object creation, and copy constructors copy the values of one object into a new object. Destructors are special member functions that destroy objects and are declared with a tilde symbol preceding the class name. They are called automatically when program execution finishes or an object is deleted.

1. PRESENTED BY
Ms.V.VENNILA., MCA.,M.Phil.,
Asst.Prof of InformationTechnology,
Bon Secours College forWomen,
Thanjavur

2.  A Constructor is a member function of class
which initializes the objects of the class .
 It is automatically called ,when the objects is
created.
 Constructor have different from normal
functions.
 It same as class name itself.
 It don’t have a return type.
 Its automatically called , when the objects is
created.
 class name::function name

3.  default constructor
 parameterized constructor
 copy constructor

4. It is the constructor which doesn’t
take any arguments.
It has no parameters.
class name()
{
………
}

5. There are the constructor with parameters.
Using this constructor , we can provide different
values to data of different objects by passing the
value as arguments.
class cube()
{
public:
int side;
cube(int x)
{
side=x;
}
};

6.  There are the special type of constructor
which takes on object as arguments and is
used to copy values of data members of one
objects into other objects.

7. A Destructor is a special member function that
works opposite to constructor.
Destructor are used to destroy or delete the objects.
class name()
{
……….
}
The destructor name should exactly mach with the
class name.
A Destructor is declared to begin with (~) –tilde
symbol.
A Destructor is automatically called when the
program execution is finished.

8. THANK YOU ALL