CLASS OF C++ PROGRAME

C++ hello world class program

#include

#include

          class message

{

  public:

    void display()

 {

      cout << "hello world\n";

    }

};

int main()

{

   message c;   

   c.display(); 

               return 0;

}

C++ addition program using class

#include 

#include 

class mathematics 

{

  int x, y;

public:

  void input()

 {

    cout << "input two inetegers\n";

    cin >> x >> y;

  }

  void add()

{

    cout << "result = " << x + y;

  }

};

int main()

{

   mathematics m;  

   m.input();

   m.add();

   return 0;

}

C++ program to reverse a number

#include 

          #include 

class operations

{

  long c;

public:

  void inputnumber()

  {

    cout << "input a number\n";

    cin >> c;

  }

  long reversenumber()

  {

    long invert = 0;

    while (c != 0)

    {

      invert = invert * 10;

      invert = invert + c%10;

      c = c/10;

   }

    return invert;

  }

};

int main()

{

  long result;

  operations t;

  t.inputnumber();

  result = t.reversenumber();

  cout << "number obtained on reversal = " << result;

  return 0;

}