Зачем нужна инициализация?

Answer 1

Without initializing the class, your code won't work! and yes the objects won't be created!

Answer 2

You need to construct a class before using it as an object. Construction and destruction is occurred automatically. Try to implement them, You will understand their importance.

Answer 3

я не знаю ,тебе что-то на английском, ответили если не знаешь английский переведи через переводчик