C++ delete - It deletes my objects but I can still access the data?

Question

I have written a simple, working tetris game with each block as an instance of a class singleblock.

class SingleBlock
{
    public:
    SingleBlock(int, int)         


        

Answer 1

Heap memory is like a bunch of blackboards. Imagine you are a teacher. While you're teaching your class, the blackboard belongs to you, and you can do whatever you want to do with it. You can scribble on it and overwrite stuff as you wish.

When the class is over and you are about to leave the room, there is no policy that requires you to erase the blackboard -- you simply hand the blackboard off to the next teacher who will generally be able to see what you wrote down.