Java
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Detailed summary of runtime classes in Java
Introduction to runtime class In Java, the runtime class provides many APIs to communicate with @ H_ 403_ 33@java Inte…… -
[Java Concurrent Programming] summary of common tools: countdownlatch, cyclicbarrier, semphore, exchange
CountDownLatch Countdownlatch allows one or more threads to wait for other threads to complete operations. Similar to …… -
Java: several ways to control threads
Java: several ways to control threads There are many ways to control threads. This paper makes a summary. join() The o…… -
[in depth understanding of Java virtual machine] characteristics of four reference types
Strong reference The most common in Java is strong reference. Assigning an object to a reference variable is a strong …… -
Java Web(3)-XML
1、 Introduction to XML 1. What is XML? XML is an extensible markup language 2. What is the role of XML? 2、 XML synta…… -
Java Language Overview
1、 Java Basics 2、 Software 1. What is software? Software = data + instruction [command] + document 2. What does soft…… -
Detailed explanation of java object-oriented – Part 1
1、 Classes and objects 1. Composition of class 2. Properties Member variable vs local variable 3. Method Provide the …… -
Java Web (2) – jQuery
1、 JQuery first experience Use jQuery to bind click events to a button <!DOCTYPE html> <html lang="en"> &…… -
Java exception
1、 Abnormal? Java. In Java System Lang. throwable class is the root class of the exception [java.lang.throwable is th…… -
Definition and use of Java array
1、 Array concept Multiple data of the same data type can be stored in the same container 1. Format 2. Array operation…… -
Java Web (5) – servlet details (Part 2)
1、 HttpServletRequest class 1. What is the role of HttpServletRequest? Every time a request enters the Tomcat server,…… -
Java Web (5) – servlet details (Part I)
1、 Servlet 1. What is a servlet 2. Manually implement the servlet program First, create a corresponding module in the…… -
Java common class – wrapper class
1、 Use of packaging import org.junit.Test; public class WrapperTest { //String类型 --->基本数据类型、包装类：调…… -
Java common class – string class
String related classes: String String class: represents a string. All string literals (such as "ABC") in Java programs…… -
Java Web(1)-JavaScript
1、 Combination of JavaScript and HTML code 1. The first method Just use the script tag in the head tag or the body ta…… -
Java multithreading detailed summary
1、 Basic concepts Program @ h_ 301_ 4@: a set of instructions written in a certain language to complete a specific ta…… -
Java object-oriented explanation – next
1、 Static public class TestCircle { public static void main(String[] args) { Circle c1 = new Circle(); Circle c2…… -
Java common class – object class
1、 Java Lang.Object class 1. Object class is the root parent class of all Java classes 2. If the extension keyword is…… -
Java comparator
Normally, objects in Java can only be compared = = or= You can't use > <, but in actual development, we need to …… -
Ubuntu 18.04. 1 build Java environment and HelloWorld
1、 Build Java environment System environment 1. Download JDK Official website address: http://www.oracle.com/technetw…… -
Xiaobai learning algorithm: the best time to buy and sell stocks!
Today, the ant group (Alipay) is officially listed. There is no doubt that this initiative has created a large number …… -
Spring boot (I) quick start
1、 About spring boot Before we begin to understand spring boot, we need to understand spring first, because the birth…… -
Rabbitmq series (III) introduction and practice of rabbitmq exchange
Introduction and practice of rabbitmq exchange switch Rabbitmq series Reading guide After we have the basic knowledge …… -
Interview raids | how does redis query a key from massive data? Attached video
1. Review knowledge points The knowledge points investigated in this topic are as follows: 2 solution ideas 3 keys usa…… -
Rabbitmq series (V) deploying rabbitmq clusters using docker
summary This article focuses on the use of docker, how to deploy rabbitmq cluster and the most basic docker installati…… -
Two implementation methods of linked list inversion, the latter beat 100% of users!
Linked list inversion is a very basic but very popular algorithm interview question. It has also appeared in question …… -
Java improvement class (IV) interview Essentials – data sets you don’t know
Introduction: does map not belong to a subset of the Java collection framework? Like a list, a queue belongs to one of…… -
23 pictures! Ten thousand words explain the “linked list”, from Xiaobai to big brother!
Linked list and array are two important and commonly used basic data types in data types. Array is a data structure co…… -
Summary of the most complete implementation methods of delayed tasks in history! Code attached (strongly recommended)
The birth of this article is thanks to a reader who gave this excellent article the opportunity to meet you. The focus…… -
New Java feature: can data types be thrown away?
A long time ago, when writing code, we should carefully consider the data types of variables, such as the following: H…… -
Spring boot (IV) template engine thymeleaf integration
1、 Introduction to thymeleaf Thymeleaf is a Java XML / XHTML / HTML5 template engine that can be used in web and non …… -
Java improvement class (VI) reflection and dynamic proxy (JDK proxy and cglib)
1、 Reflection 1. Get class object 2. Common methods of class // 此段代码为公共代码 interface People { int parentA……