Common design patterns ：Singleton、Template、Strategy Pattern. ĥ).Java exception handling, The mechanism of exceptions. Object instantiation process 、 Method coverage 、final keyword 、 abstract class 、 Interface 、 An analysis of the advantages and disadvantages of inheritance Polymorphism of objects ： Conversion between subclass and superclass 、 Application of abstract classes and interfaces in polymorphism 、 Benefits of polymorphism. Object oriented abstraction, encapsulation, Inherit, polymorphic, Classes and objects, Object initialization and recycling Constructors 、this keyword 、 Method and method parameter passing process 、static keyword 、 Inner class.
Ģ).String and StringBuffer Use 、 Regular expressions. Two 、 Learning knowledge summary 1、Java se Basicsġ).Java Basic data types and expressions, Branch loop.
