what is the output of following code?
  

#include using namespace std; class Dikdortgen { private: int width; int height; public: Dikdortgen (int w, int h) { } width = w; height = h; int getAlan() { return width * height; } }; int main() { Dikdortgen d1(4, 5); cout < < getAlan () < < endl; return 0; }