Dynamic Constructor in C++

Whenever value passed to a parameterized constructor is provided at runtime it is known as dynamic constructor

#include<iostream.h>

#include<conio.h>

class abc

{

int a,b;

public:

abc()

{

a=0;

b=0;

}

abc(int x,int y)

{

a=x;

b=y;

}

void show()

{

cout<<"a= "<<a<<endl<<"b= "<<b<<endl;

}

};

void main()

{

clrscr();

int l,m;

cout<<"Enter two no." <<endl;

cin>>l>>m;

abc ob1,ob2(l,m);//dynamic constructor

ob1.show();

ob2.show();

getch();

}

In main function l & m will be initialized at runtime.

Default Constructor

Parameterized Constructor

Copy Constructor

Dynamic Constructor