Java. Page 7

What happens to Integer between - 128-127?

. equals and of Integer== This is a basic question. People who master some java may be able to say why. But a closer loo...
8:06 28 October 2021

java set and data structure - binary tree

1, Tree (difficulty) 1. Hierarchy: from the definition of the root, the root is the first layer, and the child node of t...
8:05 28 October 2021

Discussion on WebSocket cluster solution in distributed system architecture

Scene description Resources: 4 servers. Only...
6:28 28 October 2021

Add menu items to the window in JAVA and process the response of menu items

Add menu items to the window in JAVA and process the response of menu items Title restatement Adds a menu to the windo...
19:12 27 October 2021

IoC and DI of Spring

Spring Spring is a lightweight open source framework for layered Java SE/EE application full stack, with IOC (flip contr...
10:35 27 October 2021

[distributed transaction] 01--Spring Cloud project construction

1, Basic introduction 1. What is ...
9:39 27 October 2021

java collection with sorting - Introduction to the comparator of TreeMap

Sequence:          &...
8:08 27 October 2021

An article makes you proficient: explanation of java collection (II, ArrayList)

List collection The main implementation class...
8:03 26 October 2021

leetcode brush record day033:203 and 160

203. Simple difficulty: Method 1: Original: new linked list Principle: first, create two new nodes, one as the answer ch...
3:49 26 October 2021

webpack or esbuild: why not both?

[translated from John Reilly on LogRocket website webpack or esbuild: Why not both?] Use image esbuild Tools can be buil...
0:18 26 October 2021

Lion Air crash report points to Boeing, pilots, maintenance

JAKARTA, Indonesia — An Indonesian investigation found a Lion Air flight that crashed and killed 189 people a year ago was doomed by a combination of ...
11:27 25 October 2021

2021-10-21 IV. recursion

1. What is recursion Recursion is a method that calls itself, passing in different variables each time. Recursion helps ...
8:57 25 October 2021

Deep and shallow copies of clonable

1, What is clonable Clonable is an interface of java. There is no method to be enforced in the interface. Therefore, thi...
8:23 25 October 2021

[Java learning notes] exception handling

catalogue Category of exception Exception capture and thr...
8:16 25 October 2021

Colleagues use Redis cards indiscriminately. I'm really drunk

Source: https://my.oschina.net/xiaomu0082/blog/2990388 First, let's talk about the problem: the API of Intranet sandbox ...
7:13 25 October 2021

Back end small projects - simple commodity management

preface This back-end project is an assignmen...
7:01 25 October 2021

Java 23 design patterns -- sharing element pattern (structural design pattern)

Sharing element mode introduce The meta shari...
2:27 25 October 2021

Realize the two-way binding of vue

There are several ways to implement data binding: Publish...
0:26 25 October 2021

Spring learning summary

Spring Initial Spring Various ver...
18:45 24 October 2021

Java core technology Volume 1 -- array quick sorting of lottery games

The title is: lottery is to randomly select several non repeated values from multiple numbers, sort and output them, and...
4:20 24 October 2021

Use of regular expressions in JavaScript and common regular expressions

1. Use of regular expressions A regular expression can be regarded as the characteristic description of a character segm...
20:28 23 October 2021

Java 100 classic machine test questions (12) -- with runnable code

Introduction There will be two classic Java m...
20:10 23 October 2021

Sword finger Offer 19. Detailed problem solution of regular expression matching

Sword finger Offer 19. Regular expression matching ...
16:14 23 October 2021

The new setup function for vue3.x will be used after reading it

Recently, a little partner has talked to me about setup function, because they are used to the vue2.x writing, which mak...
13:18 23 October 2021

Spring IoC container and Bean management

Spring acquaintance IoC control r...
7:11 23 October 2021

Java reflection mechanism

1.1 role of reflection mechanism   ...
0:45 23 October 2021

Mybatis advanced experience

1. Dao layer implementation of mybatis 1.1 traditional development methods 1.1.1 write UserDao interface public interfac...
0:32 23 October 2021

[Java] summary of Java collection

More articles welcome the official account of "three Heng Lan". It can be seen from the picture that there ar...
9:35 22 October 2021

CodeReview - background playback & quick reply

Background play Function description On deman...
22:59 21 October 2021

JAVA string formatting - use of String.format()

Formatting of general types The format() method of the String class is used to create a formatted String and connect mul...
22:33 21 October 2021