Question

Define a problem with user input, user output, -> operator and destructors. C ++ please

Answer 1

#include <iostream>

using namespace std;

class Counter
{
//static data member
   int a;
   int b;

public:
  
//default constructor
   Counter()
   {
   a=0;
   b=0;
   }
  
   Counter(int aa, int bb)
   {
   a = aa;
   b = bb;
   }
  
   //destructor
   ~Counter()
   {
   a=0;
   b=0;
   }

//method to display the values
void display()
{
cout<<endl<<"a = "<<a<<endl<<"b = "<<b;
}
};

int main()
{
//variable declaration
int a, b;
  
   //create object pointer
   Counter *ptr;
  
   //get user input
   cout<<"Enter two values for first object: ";
   cin>>a>>b;
  
   //create object
   Counter t1(a,b);
  
   //get user input
   cout<<"Enter two values for first object: ";
   cin>>a>>b;
  
   //create object
   Counter t2(a, b);
  
   ptr = &t2;
  
   //display object values
   cout<<"The first object is:"<<endl;
   t1.display();
  
   //display object values
   cout<<endl<<endl<<"The second object is:"<<endl;
   ptr->display();
  
   //call destructor
   t1.~Counter();
ptr->~Counter();
  
   return 0;
}

OUTPUT:

Enter two values for first object: 10 20
Enter two values for first object: 50 60
The first object is:

a = 10
b = 20

The second object is:

a = 50
b = 60