📅  最后修改于: 2022-03-11 14:52:43.098000             🧑  作者: Mango
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