Design mode - eight different implementations of single case mode [JAVA] and single case question sorting - interview necessary - super detailed
Design mode - single case mode - eight different implementations [JAVA] and single case problem sorting - necessary for interview - super detailed
Introduction to singleton mode
the singleton pattern is a software design pattern that restricts the instantiation of a class to one "single" instance. It can be simply understood as: a class ca ...
Posted by SalokinX on Mon, 16 May 2022 21:13:29 +0300
Ladder: Design Patterns
Data study organized from: Station B is still Silicon Valley
I wrote a set of code to understand by myself, which has been uploaded Code cloud Since the design pattern is a big topic with a lot of content, my plan is to learn some commonly used ones first, and then gradually make them comprehensive.
Design Patterns
Design Pattern
...
Posted by wenxi on Mon, 16 May 2022 17:10:42 +0300
Design patterns 23 design patterns
Design mode (II) 23 design modes
Rookie tutorial design mode
Design mode interview questions Express Edition
All references in this article are from the design pattern GoF
Component collaboration mode
Strategy mode
Have the concept of "timeline"
motivation
Support often changesChange the algorithm transparently to decoupl ...
Posted by zampu on Sun, 15 May 2022 21:36:33 +0300
Starting again in 2020, the fourth of JAVA design patterns is the abstract factory pattern
Abstract factory pattern (detailed version)
The production of a kind of products is considered in the factory method mode, such as only raising animals in the livestock ranch, only producing televisions in the TV factory, and only cultivating students majoring in computer software in the school of computer software.
The same kind is called the ...
Posted by @sh on Sun, 15 May 2022 08:08:21 +0300
Factory pattern - understand Spring's Bean factory (classic example of horse soldier)
Factory pattern - understand Spring's Bean factory
Connect the scene of "Lao Zhang drives to the northeast" in object-oriented. Link name
Encapsulate the vehicle in "Lao Zhang drives to the northeast", encapsulate the vehicle Car
Only one car is given to the driver (single case, multiple cases)
By the way, explain the single ...
Posted by fuzz01 on Sun, 15 May 2022 07:34:12 +0300
Singleton design pattern - Enumeration singleton - singleton optimization
preface
Singleton mode is the simplest of Java design modes. You only need one class to implement singleton mode. However, you can't underestimate singleton mode. Although it is relatively simple in design, you will encounter many pits in implementation. Therefore, fasten your safety belt and get on the bus.
Definition of singleton mode
Sing ...
Posted by RestlessThoughts on Sat, 14 May 2022 16:23:00 +0300
Study Notes - Week 3
This week's Android learning summary
activity life cycle
test: Write the following code in MainActivity.java
public class MainActivity extends AppCompatActivity {
private static final String TAG = "life_cycle";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
s ...
Posted by gamerzfuse on Sat, 14 May 2022 09:20:05 +0300
Design Pattern Factory Pattern
After learning object-oriented programming, learn to create objects using keywords"new" To create objects, but creating objects in this way is a bit redundant and too coupled when a complex and multiple objects need to be created, and it is not easy to be understood. Factory pattern is used to create objects
First, the simple factory mode.
T ...
Posted by mr_badger on Fri, 13 May 2022 19:56:49 +0300
Design Patterns -- Adapter Patterns
adapter mode
Purpose: Convert the interface of a class to another interface that the client wants. The adapter pattern enables classes to work together that would otherwise not work together due to incompatible interfaces.
Hypothetical scenario: In the past, the mobile phone had a memory card, the mobile phone user put the data in the memor ...
Posted by phpnew on Fri, 13 May 2022 14:20:27 +0300
Design pattern behavioral pattern
Behavioral model
The behavior model is responsible for efficient communication and responsibility assignment between objects.
Behavioral model:
Policy pattern: encapsulates a set of algorithms into a series of objects. By passing these objects, you can flexibly change the function of the program. For example: Java util. Comparator#compare ...
Posted by gargoylemusic on Fri, 13 May 2022 12:42:04 +0300