Programmer Think

This paper mainly introduces the basic idea and three characteristics of object-oriented. The article was first published under the public slogan Pedestrian View. 1. Introducing Examples Create a Dog puppy /** * Puppies */ public class Dog { String name; Integer age; Integer legs; public void say(String name) { Sys ...

0x001 general An excellent front-end engineer must be an excellent engineer first; an excellent engineer must be responsible for every line of code he writes and every commit he submits. That said, I don't want to write a very large and comprehensive article, but I want to write some small things. 0x002 undo git add We know that to submit a com ...

1, Basic source code analysis 1. Find the entrance Spring's AOP is started by accessing the BeanPostProcessor postprocessor 2.BeanPostProcessor BeanPostProcessor is embodied in the doCreateBean of IOC source code analysis, the latter sentence of populateBean Object exposedObject = bean; try { po ...

1 Functional Interface Functional interfaces in Java refer to interfaces that have one and only one abstract method Functional interfaces, that is, interfaces for functional programming scenarios; while functional programming in Java is represented by Lambda, so functional interfaces are interfaces th ...

Shell_04_Regular expression RE What is a regular expression Simply put, a regular expression is the way to process strings. It handles strings in units of behavior. Regular expressions, assisted by some special symbols, make it easy for users to "search/delete/replace" a particular string ...

1, The concept of inheritance Inheritance is a cornerstone of java object-oriented programming technology, because it allows the creation of hierarchical classes. Inheritance means that the subclass inherits the characteristics and behaviors of the parent class, making the subclass object (instance) have the instance domain and methods of the p ...

inherit Inheritance is one of the most important concepts in object-oriented programming. Inheritance allows us to define another class according to one class, which makes it easier to create and maintain an application, and is also conducive to code reuse and development time saving. Syntax:[access m ...

Fusing Current limiting retry 1. Speed limit router Speed limit is one of the common means in high concurrency scenarios, which can effectively guarantee the overall stability of the service. Spring Cloud Gateway provides a Redis based flow limit scheme. So we need to add the corresponding dependency package spring boot starter data R ...

[TOC] Springboot integrates a lot of plug-ins. Compared with spring, springboot is a little bit Auto configuration: for many spring applications, springboot provides many auto configurations Start dependency: tell springboot what you need, and it will introduce the required Library Command line interface: optional features of springboot Autu ...

1. Overview of Easy Rules Easy Rules is a Java rules engine inspired by a piece called< Should I use a Rules Engine? >The article of The rule engine is to provide an optional calculation model. Unlike the usual imperative model, which consists of commands with conditions and cycles in turn, the rule engine is based on the production rule ...