Tag：Static state
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Time：2020-5-19
The storage principle of SRAM is that the smallest storage unit of SRAM is a bistable semiconductor circuit or a CMOS transistor or a magnetic material, It can store a binary code. A storage unit is composed of several storage units, and then a storage unit is composed of many storage units, which is used […]
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Time：2020-5-11
Non static member function: At compile time: see whether there is a method called in the class to which the referential variable belongs. If yes, the compilation passes, if not, the compilation fails. At run time: see if there is a method called in the class to which the object belongs. Summary: when a non […]
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Time：2020-5-6
First address:https://mp.weixin.qq.com/s/wV… “For some front-end ers, there are few practical operations that actually touch the cache, which belongs to both familiar and unfamiliar technical points. The author here introduces the common cache related foundation and common cases, which can be mastered in daily situations.” Why cache? How to use cache correctly? Start with these questions~ […]
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Time：2020-5-5
Welcome to share, just indicate the copyright. Overall structure Front end: react technology stack Back end: srping + springmvc + mybatis Question: If you don’t want to deploy the front-end project separately, but want to put the packed static files into the back-end project, and then deploy through tomcat, is it feasible? Answer: no problem […]
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Time：2020-4-30
1) Parameterless constructor register bean Entity class public class User { private String username; private String password; public User() { System. Out. Println (“the nonparametric constructor user () of the user class executes”); } public User(String username, String password) { System. Out. Println (“the user class’s parameterized constructor user () executes”); this.username = username; this.password […]
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Time：2020-4-26
Dealing with boundary conditions $rootUsed to access root components $parentAn instance used to access a parent component from a child component refand$refsUsage of Use on componentsrefThis property is bound, the property value is self fetched, and then you can use the$refs. Attribute nameThis is the way to get the instance of the specified component. It’s […]
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Time：2020-4-24
The background image in the front end is very common, but it is easy to have various problems One is the problem of resource reference mode of scaffold itself, such as specifying static resource folder One is the introduction of image resources, sometimes using absolute or relative paths will lead to errors cssMethod Normal usebackgroundProperties […]
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Time：2020-4-23
The use of static checking tool for kotlin Android project Static checking tools available for kotlin Android project: Android official lint, third-party ktlint and detekt Static inspection tool Static check tool refers to a tool that does not need to run code to check the code Not only code style, but also check the correctness […]
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Time：2020-4-22
6) Static methods and prototype (difficult) Example 3.6.1 / * note that mark – to win: static variable’s value has nothing to do with instance’s variable’s value.instance name can not directly access static member like in Java. this is different from Java. For example, in the following example, student. Number = 2, But d1.number […]
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Time：2020-4-21
order This paper mainly studies the history server of Flink HistoryServer flink-1.7.2/flink-runtime-web/src/main/java/org/apache/flink/runtime/webmonitor/history/HistoryServer.java public class HistoryServer { private static final Logger LOG = LoggerFactory.getLogger(HistoryServer.class); private final Configuration config; private final String webAddress; private final int webPort; private final long webRefreshIntervalMillis; private final File webDir; private final HistoryServerArchiveFetcher archiveFetcher; @Nullable private final SSLHandlerFactory serverSSLFactory; private WebFrontendBootstrap netty; […]
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Time：2020-4-17
This article started on my blog (click here to see), welcome to follow. Preface Recently, we are doing project code refactoring. One of the requirements is to add intelligent prompt and type check to the code. Intelligent prompt, in English, is IntelliSense, which can provide developers with functions such as code intelligent completion, floating prompt, […]
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Time：2020-4-17
The singleton mode ensures that a class has only one instance and provides a global access point to access it. Usage scenarios Usually we can have a global variable that makes an object accessible, but it doesn’t prevent you from instantiating multiple objects. One of the best ways to do this is to have the […]
