Question

Please help!!!!
Write a program to show the working of constructor and destructor.

Answer 1

Heya friend!!

#include<iostream.h>
#include<conio.h>
class add
{
private:
int num1 , num2 , num3 ;
public:
add ( int = 0 , int = 0);
void sum();
void display ();

~ add (void);
};

add :: ~ add (void)
{
num1 = num2 = num3 = 0;
cout<<"\n After the final execution, me, the object"<< "has entered in the"<<"\n destructor to destroy myself \n" ;
}
add :: add (int n-1 , int n2)
{
num1 = n1;
num2 = n2;
num3= 0;
}
void add :: sum ()
{
num3 = num1 + num2;
}
void add :: display ()
{
cout<<"\n The sum of two numbers is"<<num3<<endl;
}

void main()
{
add obj 1, obj 2(5), obj 3(10,20);
clrscr();
obj1. sum ();
obj2.sum ();
obj3.sum();
cout<<"\n Using obj1 \n";
obj1.display();
cout<<"\n Using obj2 \n";
obj2.display();
cout<<"\n Using obj3 \n";
obj3.display();

getch();
}

HOPE IT HELPS......
#RUHANIKA

Answer 2

#include <iostream.h> 
#include<conio.h> 
class MyClass 
{ 
    public: 
    int x; 
   MyClass(); // constructor 
 ~MyClass(); // destructor 
}; 
// Implement MyClassconstructor. 
         MyClass::MyClass() 
      { 
                x = 10; 
      } 
// Implement MyClass destructor. 
          MyClass::~MyClass() 
      { 
            cout<< "Destructing ...\n"; 
      } 
              void main() 
      { 
             clrscr(); 
             MyClass ob1; 
             MyClass ob2; 
             cout <<ob1.x<< " " <<ob2.x<<"\n"; 
             getch(); 
      } 




output:
10  10