包含标签：Java 的文章
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Java Concurrent Programming: the use of thread pools
Java Concurrent Programming: the use of thread pools In the previous article, we created a thread when using threads, …… -
Underlying implementation of ArrayList, LinkedList and HashMap
The bottom implementation of ArrayList is an array (fixed size). When the length of the array is not enough, a new arr…… -
Four reference modes of Java
JAVA memory management is divided into memory allocation and memory recycling, which are not the responsibility of pro…… -
Various sorting algorithms implemented in Java (including bubbling, fast sorting, etc.)
// Heap sorting is unstable. Import Java util. Arrays; public class HeapSort { public static void main(String[] arg…… -
Installation and use of redis
Environment: CentOS 6.6 redis version: redis-3.0 (considering the characteristics of redis 3.0 in clustering and perfo…… -
Java Concurrent Programming: the origin of processes and threads
The foundation of Java multithreading: the origin of processes and threads Having introduced the basic knowledge of …… -
Caching strategies commonly used in J2EE development
1、 What is cache? 1. Cache is a special memory subsystem of cache memory, in which frequently used data is copied for…… -
Installation and use of ActiveMQ
1、 Installation of ActiveMQ Environment: CentOS 6, jdk8 1. Ensure that the system has installed the available JDK ver…… -
How many ways to implement Java multithreading? How are threads synchronized
There are two ways to implement multithreading in Java: < span style = "font size: 15px;" > 1. Directly inherit…… -
Detailed explanation of generics in Java – Java programming idea
Generics in Java refer to C + + templates. The boundary of Java is the limitation of Java generics. One of the most co…… -
Network programming
1、 Seven layer model of network From bottom to top are physical layer (circuit, wiring) - data link layer (switch) - …… -
Summary of 30 interview questions in Java
A start() B run() C exit() D getPriority() Answer: abd 2. The following is about Java The correct statement of lang. e…… -
Message Oriented Middleware
1、 What is message oriented middleware Message oriented middleware is the basic software for sending and receiving me…… -
Java eclipse breakpoint debugging
Java eclipse breakpoint debugging How to debug Java programs? When you first learn Java, you will feel that ide debu…… -
reflex
1、 What is reflection Java programs can dynamically load, parse and use some data types that are uncertain in the com…… -
Linux configuration Java environment variables (detailed)
I Unzip and install JDK, and enter jdk-6u14-linux-i586.0 under the shell terminal Bin file directory, execute the comm…… -
The difference between = = and equal () method in Java
Differences in methods In Java = = compares addresses and equal compares values. Example: -
Java Concurrent Programming: inter thread communication wait, notify
Java Concurrent Programming: two ways of cooperation between threads: wait, notify, notifyAll and condition We've disc…… -
Invocationtargetexception (reflection exception) for Java exception handling
Invocationtargetexception exception by method invoke(obj,args...) Method is thrown. Example: Test: Output: You can als…… -
Deeply understand the exception handling mechanism of Java
Exceptions refer to unexpected conditions, such as file missing, network connection failure, illegal parameters, etc. …… -
Detailed explanation of Java environment variable configuration (Windows)
< H1 class = "posttitle" > detailed explanation of Java environment variable configuration (Windows) < div cl…… -
struts2_ Struts type conversion
I In the servlet, the non string type submitted by the form needs to be converted manually 1. In struts, the commo…… -
Java_ Folder splitting and merging
I Idea: 1. Document cutting: The class RandomAccessFile is used, in which the method seek can customize the readin…… -
Java_ Queue interface
Queue interface 1. english A) queue B) deque, double Ender queue 2. Queue interface In addition to the basic c…… -
Java_ Collections tool class
Collections tool class * differences between collections and collections Collection interface (the implementation inte…… -
struts2_ struts. Explanation of XML configuration file
1.bean Bean detailed explanation: https://www.cnblogs.com/lulu638/p/4340703.html 2.constant Constant attribute configu…… -
JSTL_ Format tag library
JSTL_ Format 1： JSTL format tag library <%@taglib uri=” http://java.sun.com/jsp/jstl/fmt ” prefix=”fmt”%> 2： F…… -
Java connection to MySQL database
Several methods of Java connecting to database *Explain 1. Take MySQL database as an example 2. There are fo…… -
java_ How custom labels work
I How custom labels work: Web server JSP 3 When a custom tag is encountered, first instantiate the tag processor class…… -
JSTL_ XML tag library
JSTL_ XML 1： Explain 2： XML tag library The main function of XML tag library is to provide convenient support for op…… -
java_ Custom tag, my first custom tag!
Custom tag, my first custom tag! There are two steps altogether I case Output client IP ViewIP. jsp -
Java_ IO stream_ abstract class
< p align = "left" > I concept III Character stream and byte stream and file 1. Byte stream Input stream Out……