A constructor is a member function of a class i.e. uses to create objects of the class. It has the same name as the class. A constructor has no return-type and it invoked by using ‘new’ operator. It is a special kind of function used to initialize the objects. And constructors cannot return value.
Syntax:
<accessibility-modifier> <class-name> <formal parameters>
{
<local variable declaration>
<statement>
}
e.g:
class rectangle
{
int length;
int breadth;
rectangle()
{
length=5;
breadth=10;
}
}