CPP program to illustrate the order of execution of constructors and destructors in inheritance

In this article we will learn to implement a CPP program to illustrate the order of execution of constructors and destructors in inheritance. A C++ program is provided below to demonstrate in which order constructors and destructors are executed in inheritance.

Program is as follows:

#include <iostream>
using namespace std;
class A
{
	public:
		A()
		{
			cout<<"A's Constructor"<<endl;
		}
		~A()
		{
			cout<<"A's Destructor"<<endl;
		}
};
class B : A
{
	public:
		B()
		{
			cout<<"B's Constructor"<<endl;
		}
		~B()
		{
			cout<<"B's Destructor"<<endl;
		}
};
class C : B
{
	public:
		C()
		{
			cout<<"C's Constructor"<<endl;
		}
		~C()
		{
			cout<<"C's Destructor"<<endl;
		}
};
int main()
{
	C c;
	return 0;
}

Output for the above program is as follows:

A's Constructor
B's Constructor
C's Constructor
C's Destructor
B's Destructor
A's Destructor

Suryateja Pericherla

Suryateja Pericherla, at present is a Research Scholar (full-time Ph.D.) in the Dept. of Computer Science & Systems Engineering at Andhra University, Visakhapatnam. Previously worked as an Associate Professor in the Dept. of CSE at Vishnu Institute of Technology, India.

He has 11+ years of teaching experience and is an individual researcher whose research interests are Cloud Computing, Internet of Things, Computer Security, Network Security and Blockchain.

He is a member of professional societies like IEEE, ACM, CSI and ISCA. He published several research papers which are indexed by SCIE, WoS, Scopus, Springer and others.