Program 11 : A simple program illustrating Constructor and Destructor

#include < iostream >

using namespace std;

// class declaration

class myclass 

{

               int a;

     public:

               myclass( ); //constructor

              ∼myclass( ); //destructor

              void show( );

};

myclass::myclass( ) 

{

     cout << "In constructor\n";

     a=10;

}

myclass::∼myclass( )

{

    cout << "Destructing...\n";

} // ...

void main( )

{

          myclass c;

}

OUTPUT

Note:

You will notice that initially you will only get the output

In Constructor

But,After exiting the output screen come back to program and refresh ( Alt+F5 ), Then you will the output 

Destructing...

The reason being that the constructor is called when the object is created and destructor is called when the object is destroyed.The object will be destroyed only when we have exited the main program. So we need to refresh after exiting the program and Tada!! You get the output "Destructing..."