Java

The current commercial virtual machine garbage collection uses the "generational collection" algorithm, that is, according to the different life cycle of the object, divided into several pieces of memory, generally for the Cenozoic and the old era,

Pessimistic lock Introduction (encyclopedia): A pessimistic lock, as its name implies, is conservative in that the data is modified by the outside world (including other transactions of the system, as well as transactions from the external system),

the load-balancing architecture will be built as follows Engineering descriptionSpring-cloud-02-ribbon-retry Analog customer service, request services, resttemplate+loadbalanced to achieve load balancing Spring-cloud-02-ribbon-eureka as service

This is an article I saw in other forums, I think it's not bad. Let's share them. I hope to help you a little. A za a za fighting! Ask: How do I set the environment variables for Java 2 (JDK1.2)? For: After Java 2 is installed, you need to set up

One of the advantages of the Java language is that it cancels the concept of pointers, but it also causes many programmers to ignore the differences between objects and references in programming, especially programmers who learn Java before C and C +

Learn 30 Basic concepts of Java In the process of learning Java, mastering the basic concepts of our learning is very important both j2se,j2ee,j2me, J2SE is the basis of Java, so it is necessary to do a summary of the basic concepts, so that

Classes and interfaces are the core of the Java programming language, and they are also the basic abstraction units of the Java language. The Java language provides a number of powerful basic elements for program apes to design classes and

This article is mainly from when I write Java network programming in the use of Bufferedinputstream and Bufferedoutputstream when the bug encountered, To analyze the working mechanism of Bufferedinputstream and bufferedoutputstream and simple source

Using Java for file copy I believe many people will use, but is it the best efficiency?Recently I looked at NiO and decided to try the performance improvement of Java NIO. The first method: The old way public static long Forjava (File f1,file F2)

A few days ago encountered a problem, you need to read a formula containing parameters from the XML file and call it. So the internet to find ways, but it is not found can be resolved with parameters of the formula method, and then absorb some of

Java is a powerful high-level language. After learning its basic knowledge, we still need to understand its profound connotation. Next, we will take "effective Java" As a Java Advanced Learning carrier, a system of Java, a new understanding. Next,

When it comes to ant in English, people naturally think of ants. When it comes to another word make, people naturally think about building tools. Who would associate these two words with each other? So what's so weird about ant? This article will

Chizi: Next year will leave school to find work, time is really fast, think a few years, do some things, there are some things do not do well, have a lot of harvest, there are many regrets. Emotional words in this should not be said, since the

Web module, the Web application in the Servlet specification. In the Java EE schema, Web modules (Web module) are the smallest Web deployment unit. It contains Web components and static resources; Static resources, such as pictures, are also called

Recently encountered a problem in the project, two values of the same integer value for = = comparison, found some of the mysteries of the integer, by the way also review the difference between = = and equals, first through the Damo code explained

Use Java socket to do a chat room, to achieve the function of many people chat. Watched the Geek College video and then knocked on it. (1DAY)Service side:1. First write the service end of the class myServerSocket, which put a listening thread, a

Http://datalab.int-yt.com/archives/27 When deploying different applications using multiple server programs, you may encounter situations where multiple services want to use the default 80 port. However, multiple servers cannot occupy the same port

During the socket programming process, the client sends a request to the server and encounters the following error: Java.net.SocketException:recvfrom failed:econnreset (Connection reset by Peer) 01-11 23:07:25.065:w/system.err (11804):

Baidu Java programmer side:Handwritten ArrayList handwriting conversion algorithm, to find a number of binary number 1 Java base equals and = = Multithreading, threadlocal, various locks, synchronized and lock design patterns, Spring class loading

Overview of Java Garbage collection Java GC (Garbage Collection, garbage collection, garbage collector) mechanism, is one of the main differences between Java and C++/C, as Java developers, generally do not need to write memory and garbage cleaning