Programmer Think

0. Ma Xian inspirational Human beings are great because of their dreams. Action is the beginning of dreams. 1. General First look at the pictures below. There are many travel modes for us to travel. We can ride a bike, take a car, take a train and take a plane. As a program ape, you need to choose a development tool for development. O ...

COF-23 pattern classification For the purpose: Creation mode: delay the creation of some objects to subclasses or other objects, so as to deal with the impact caused by the specific type implementation when the requirements change to object creation.Structural pattern: obtain a more flexible structure through class inheritance or object combi ...

definition The algorithm family is defined and encapsulated respectively so that they can be replaced with each other. This mode makes the change of the algorithm not affect the users using the algorithm. The policy pattern emphasizes that multiple policies can be interchanged. These policies are different implementation classes of the same i ...

Adapter mode Definition: convert an interface to another interface that the customer wants. The adapter pattern allows some classes with incompatible interfaces to work together. It mainly solves that in the software system, some "existing objects" are often put into the new environment, and the interface required by the new en ...

catalogue 1, Overview of Mybatis operation process 2, Configure loaded core classes 2.1 three core classes of builder 3, Builder mode 3.1 what is the builder model 3.2 difference from factory mode 4, Introduction to Configuration object 1, Overview of Mybatis operation process In order to get familiar with the operation process of M ...

Introduction: Operation Guide: dynamically modify the navigation bar through jsAPI. After accessing the H5 container, many development students will deeply customize the navigation bar of the container. In addition to the customization of Native, there are many scenarios that use jsAPI to dynamically modify the navigation bar through jsAPI. ...

Delegate: Class a delegates the function to class b Class A contains a function class b pointer or object. When the function of b function class is used, the function of b is called through its pointer or object. In the view of the calling module, the problem is solved by class A. in fact, class a solves the problem through its member class b o ...

The learning effect is better with the Java design pattern of Silicon Valley! Video connection Importance of design patterns In software engineering, design pattern is a solution to various common (recurring) problems in software design. This term was introduced from the field of architectural design to computer science by Erich Gamma ...

Stateless state machine 1: Foreword In the project, there are often some work orders, applications and so on, which need to flow the status. This kind of demand is generally what conditions are met, and then the state is reversed. These processes are logically similar in structure and can be handled abstractly. Using a general structure can ...

Java basic syntax 69- interface 1, Use of interfaces Interfaces are defined using interface sIn java, interfaces and classes are parallel structuresHow to define an interface: define members in an interface 3.1 JDK7 and before: only global constants and abstract methods can be defined Global constant: public static final, but it can b ...