Question

Isn’t

 A a = new A();   // A is a class name

supposed to work in C++?

I am getting:

conversion from ‘A*’ to non-scalar
type ‘A’ requested

Whats wrong with that line of code?

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This works in Java, right?

Also, what is the correct way to create a new object of type A in C++, then?

Answer 1

No, it isn’t. The new operation returns a pointer to the newly created object, so you need:

A * a = new A();

You will also need to manage the deletion of the object somewhere else in your code:

delete a;

However, unlike Java, there is normally no need to create objects dynamically in C++, and whenever possible you should avoid doing so. Instead of the above, you could simply say:

A a;

and the compiler will manage the object lifetime for you.

This is extremely basic stuff. Which C++ text book are you using which doesn’t cover it?