Constructor Declaration :

A constructor is a special type of method that enables an object to initialize itself when it is created. Constructors have the same name as the class itself and they do not specify a return type.

class Sum
{
int first;
int second;
}
Sum (int x, int y) // Constructor method
{
first = x ;
second = y ;
}
int result()
{
return ( first + second );
}
}