What is Inversion of Control?

Question

Inversion of Control (IoC) can be quite confusing when it is first encountered.

1. What is it?
2. Which problem does it solve?
3. When is it appropria

Answer 1

Using IoC you are not new'ing up your objects. Your IoC container will do that and manage the lifetime of them.

It solves the problem of having to manually change every instantiation of one type of object to another.

It is appropriate when you have functionality that may change in the future or that may be different depending on the environment or configuration used in.