Java constants, interfaces, multiple implementations, multiple inheritance, and permission modifiers
Learning objectives:
Understand Java constants, interface multiple implementations, multiple inheritance, and permission modifiers
Learning content:
1. Constants in Java 2. Multiple implementation of interface 3. Multiple inheritance of interfaces 4. Permission modifier
Learning steps
1. Constants in Java
In the interface, member v ...
Added by smc on Tue, 08 Mar 2022 01:50:21 +0200
Visitor Pattern
Visitor mode
In real life, some collection objects have many different elements, and each element also has many different visitors and processing methods. For example, there are many scenic spots and tourists in the park. Different tourists may have different comments on the same scenic spot; The prescription list issued by the hospital doctor ...
Added by mikeoffy69 on Tue, 08 Mar 2022 01:50:23 +0200
ios wechat calling jssdk initialization failed; If the solution in the previous and back-end separation version is adopted;
Question: Starting from the single page point of Android, wechat developer tool and apple, wechat js initialization is normal, and the initialization fails when Apple page A jumps to page B
Cause of problem:
When jumping from page A to page B, due to the use of Vue router switching and the operation of browser history, the url locked by ios w ...
Added by shinstar on Tue, 08 Mar 2022 01:46:56 +0200
Simplify API design with coroutine and Flow
If you are a library author, you may want users to call your Java or callback based API more easily when using Kotlin coroutine and Flow. In addition, if you are an API user, you may be willing to adapt the third-party API interface to the protocol to make them more friendly to Kotlin.
This article will show you how to simplify the API using ...
Added by zxsalmanxz on Tue, 08 Mar 2022 01:44:01 +0200
Experiment 12_A_ Harmonious vocabulary
Title Description
There are many discordant words in the Internet. When we browse the Internet, search engines often appear the prompt message "according to relevant laws, regulations and policies, some search results are not displayed". Xiao Wang also wants to make his own shielded thesaurus, so that he can replace the words he does ...
Added by roughie on Tue, 08 Mar 2022 01:42:08 +0200
Some functions related to RAL in UVM
0. Introduction
In the register operation supported by UVM, there are some methods such as get, update, mirror, write, etc. here, we will sort out their usage.
The register value in the register model should be synchronized with the DUT, but because the DUT value is updated in real time, the register model cannot know this update in real time ...
Added by machiavelli1079 on Tue, 08 Mar 2022 01:39:49 +0200
Getting started with the front-end css
1. What is CSS?
Cascading StyleSheet, representing standard language
Including font, color, margin, height, width, background picture, web page positioning, web page floating
The < style > tag can write css code. Syntax:
selector{
Statement 1;
Statement 2;
Statement 3;
}
<!DOCTYPE html>
<html lang="en">
<head>
...
Added by Sneo on Tue, 08 Mar 2022 01:36:51 +0200
go arrays and slices
Strictly speaking, there are three first-class citizen container types in Go: array, slice and mapping. Sometimes, we can think of string type and channel type as container type. This article mainly talks about arrays and slices.
In this article, we will first introduce the overview of container types and container values, then compare the sim ...
Added by refiking on Tue, 08 Mar 2022 01:32:30 +0200
Use of loger4j
brief introduction
Log4j consists of three important components: 1. Priority of log information (Loggers), 2. The output destination of log information (Appenders), 3. Output format of log information (Layouts).
The priority of log information from high to low includes ERROR, WARN, INFO and DEBUG, which are used to specify the importance of ...
Added by roba59 on Tue, 08 Mar 2022 01:23:55 +0200
April 8, 2021 - Mr. Hou Jie
C + + object-oriented advanced programming
First 2 sections
1. Class is to put functions and data packages together. There can be many copies of data, but there is only one function
2. The size of the object of the string class. In fact, there is only one pointer in each object, but this pointer points to the address where a specific charact ...
Added by camdagr81 on Tue, 08 Mar 2022 01:16:23 +0200