What is the difference between factory and abstract factory pattern?

Question

What is the difference between abstract class and concrete class in java. If concrete class is final then how can inherit concrete class, can someone please explain in detail?

Answer 1

With the Factory pattern, you produce implementations (Apple, Banana, Cherry, etc.) of a particular interface -- say, IFruit.

With the Abstract Factory pattern, you produce implementations of a particular Factory interface -- e.g., IFruitFactory. Each of those knows how to create different kinds of fruit.