Tolong jelaskan mengenai Conto dari Class (élmu komputer) dalam bahasa sunda

std::cout << "Hello " << what << "!" << std::endl;

int main( int argc, char** argv )

Hello* hello_world = new Hello("world");

This example shows how to define a C++ class named "Hello". It has a private string attribute named "what", and a public method named "say".