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Summary Template Method A schema is defined as follows: Defines the algorithm skeleton in an operation and delays some steps of the algorithm to a subclass so that the subclass can redefine some specific steps of the algorithm without changing the structure of the algorithm. That is, an abstract class openly defines the way/template to exe ...

background Payment function may encounter a lot in our development. Today this case is centered on payment to achieve the extensibility of payment function through the combination of design mode. It will be convenient for us to develop when demand increases and changes in the future, and it will also reduce the return time of QA. Design ...

Define an interface for creating objects, let subclasses decide which class to instantiate, and the creation of objects is uniformly handed over to the factory for production, which has good encapsulation, which not only realizes the understanding of coupling, but also ensures the principle of minimum knowledge. 1. Simple factory mode The simp ...

0 design mode If you don't know about design patterns, you can learn what design patterns are through this article https://blog.csdn.net/qq_42874315/article/details/120006447 1 bridge mode Bridging is used to decouple abstraction from realization, so that they can change independently. Separate abstract and concrete implementations so t ...

Preface: notes based on Crazy God design mode video I. Dahua design pattern (I've been updating my previous topic brushing blog recently. I've been updating a new blog for a long time today ~) What is the proxy model 1, Introduction to agent model Agent mode is a very common design mode. At the same time, there are many types. It ...

There are eight single-case patterns First: Hungry Han (static constant) public class SingleTonTest01 { public static void main(String[] args) { //test SingleTon1 instance = SingleTon1.getInstance(); SingleTon1 instance2 = SingleTon1.getInstance(); System.out.println(instance==instance2);//true Sy ...

catalogue 1, Problems in soybean milk production 2, Basic introduction Three. Template method mode principle class diagram 3.1 schematic diagram three point two   Description of schematic class diagram - i.e. (roles and responsibilities of template method pattern) 4, Template method mode to solve the problem of soybean milk productio ...

Design patterns (GOF) are divided into three types, a total of 23 categories. 1, Create mode:          Singleton pattern, abstract factory pattern, builder pattern, factory pattern, prototype pattern. 2, Structural mode:          Adapter mode, bridge mode, decor ...

catalogue 1, Proxy mode (Proxy) Basic introduction   2, Static proxy 2.1 basic introduction 2.2 application examples 2.3 advantages and disadvantages of static agent   3, Dynamic agent 3.1 basic introduction 3.2 API for generating proxy objects in JDK 3.3 dynamic agent application examples 4, Cglib agent 4.1 basic introduc ...

In real life, it is often encountered that there are many strategies to choose to achieve a certain goal. For example, when traveling, you can take a plane, a train, a bicycle or drive your own private car. Supermarket promotion can adopt methods such as discounts, goods and points. Similar situations are often encountered in software deve ...