C++ in object pro

Dynamic Memory Allocation for Objects

#include 

#include

using namespace std;

class box

{

   public:

      box() 

     { 

         cout << "Constructor called!" <<endl; 

      }

      ~box() 

      { 

         cout << "Destructor called!" <<endl; 

      }

};

int main( )

{

   box* myboxarray = new box[4];

   delete [] myboxarray; 

   return 0;

}

Calling a Function

#include 

#include

using namespace std;

int max(int num1, int num2);

 int main ()

{

             int a = 100;

   int b = 200;

   int ret;

   ret = max(a, b);

   cout << "Max value is : " << ret << endl;

    return 0;

}

int max(int num1, int num2) 

{

             int result;

   if (num1 > num2)

      result = num1;

   else

      result = num2;

   return result; 

}

Multiplication using addition

#include 

#include

int mult (int x, int y) 

{

  int result;

  result = 0;

  while (y != 0) 

 {

    result = result + x;

   y = y - 1;

  }

  return(result);

}

int main () 

{

  int x, y;

  cout << "Enter two natural numbers: ";

  cin >> x >> y;

  cout << x << " * " << y << " = " << mult(x,y) << endl;

  return(0);

}