différence entre la classe abstraite et final

1-Abstract method should be overriden
 -Final method can't be overriden
2-Abstract method can be inherited
 -Final can't be inherited
3-Abstract can be w/o implementation
 -Final must have implemetation
4-Abstract we can't create objects
 -Final we can create objects(string)
5-Abstract can't be instantiated
 -Final can be instantiated
Obedient Ocelot