Question

I am creating a new class instance like this:

Cube* cube1;

There is code in the Cube constructor, but it’s not being run! Is this usual?

Answer 1

You’re actually not creating any instance.

the variable you’re calling cube1 is a pointer to a Cube.

To create a Cube you should have:

Cube* cube1 = new Cube();

This create a new instance of Cube in heap memory, you should call delete cube1 once you don’t use it anymore.

or:

Cube cube1;

This create a new instance of Cube in stack memory, it will be destroyed once it goes out of scope.

PS. you should get a C++ textbook.