mastering concurrency programming with java 8

Java concurrency Programming: Using the thread class The following is the directory outline of this article: I. Thread status two. Context switch three. Methods in the Thread class reprinted from: http://www.cnblogs.com/dolphin0520/p/3920357 . html one. The state of a threadthreads go through a number of States, from creation to eventual extinction. In general, t

, Blocking).   SynchronousQueue: is a blocking queue with no internal capacity, so each put () must wait for a take () and vice versa (that is, each take () must wait for a put ()). It's like you're handing over an object to someone--no table can hold the object, so you can only work when the person reaches out and is ready to receive the object. In this example, Synchronousqueue represents a position set in front of the diner to strengthen the concept of only one dish at any time. One of the mo

Java getting started -- (8) network programming, java getting started Network ProgrammingKey words: IP address, port, UDP, initrampacket, initramsocket, TCP, ServerSocket, Socket, File Upload I. Basic Concepts 1. Basic Concepts ① MAC: media Access Control (MAC) or Medium Access Control address is a Media Access Control

precedes operation B, and Operation B precedes Operation C, it can be concluded that operation a precedes operation C Thread Start rule: the Start () method of the thread object takes precedence over each action of this thread Thread Break rule: The call to the thread interrupt () method occurs when the code of the interrupted thread detects that the interrupt event occurred Thread termination rule: All operations in a thread occur first in thread termination detection, and we can d

Java Concurrency programming: synchronizing containersTo facilitate the writing of thread-safe programs, Java provides threading and concurrency tools such as synchronization containers, concurrent containers, blocking queues, synchronizer (such as Countdownlatch). Today we

variable is considered not modified by another thread (in fact, the A->B->A has been modified). The solution is to precede the variable with the version number, then the a->b->a becomes 1a->2b->3a. CAS operations must be atomic operations, that is, comparison-exchange the entire process is an atomic operation, indivisible, which requires the processor to provide the corresponding instruction set to implement. A unsafe class is provided in the JDK, and the Compareandswapxxx method in the class i

This article is mainly in the form of knowledge points to Java multithreading, Learning Java Multi-Threading Foundation, this article refers to the book "Java Concurrency Programming Practical manual", if you are interested in studying and advanced multithreading ideas, you

The last blog post ("Java Concurrency Programming Combat"-"J.U.C": cyclicbarrier) LZ introduced Cyclicbarrier. Cyclicbarrier describes "allowing a group of threads to wait on each other until a public barrier point is reached before the next task is performed." And Countdownlatch has a little resemblance to it: Countdownlatch describes "it allows one or more thre

Java Concurrency Programming: the use of the thread classIn the previous 2 articles, we talked about the origins of threads and processes, and how to create threads and processes in Java. Today we will learn about the thread class, before learning the thread class, first introduce the threading-related knowledge: Sever

Java is a multithreaded programming language, and we can use Java to develop multithreaded programs. A multithreaded program contains two or more parts that can run concurrently, each of which can handle different tasks at the same time, making better use of available resources, especially if your computer has multiple CPUs. Multithreading enables you to write mu

your program is running on multiple processors or multi-core processors in multi-threaded form, it is parallel. There are also programmers who think that if the thread of the application is not executed in a predetermined order, it is concurrency, in order to simplify the problem solution instead of using a thread, and that the threads are executing in a certain order, then this is parallelism. This chapter will demonstrate how to use the Java7 API

.... Waiting for the night to get out of the bike - */ + Public classDielockdemo { - Public Static voidMain (string[] args) { +Dielock DL1 =NewDielock (true); ADielock DL2 =NewDielock (false); at - Dl1.start (); - Dl2.start (); - } -}//============================================Second, the lock lock simple use1 ImportJava.util.concurrent.locks.Lock;2 ImportJava.util.concurrent.locks.ReentrantLock;3 4 Public classSellticketImplementsRunnable {5 6 //Define Tickets7 Private i

Java concurrency Programming: the Copyonwritearraylist of concurrent containersOriginal link:　　http://ifeve.com/java-copy-on-write/Copy-on-write abbreviation Cow, is a kind of optimization strategy used in program design. The basic idea is that from the beginning everyone is sharing the same content, when someone wants

This article transferred from: http://www.cnblogs.com/dolphin0520/p/3938914.htmlJava Concurrency Programming: copyonwritearraylist of Concurrent Containers (reprint)Original link:http://ifeve.com/java-copy-on-write/　　Copy-on-write abbreviation Cow, is a kind of optimization strategy used in program design. The basic idea is that from the beginning everyone is sha

Java Concurrency Programming: copyonwritearraylist of Concurrent Containers (reprint)Original link:http://ifeve.com/java-copy-on-write/　　Copy-on-write abbreviation Cow, is a kind of optimization strategy used in program design. The basic idea is that from the beginning everyone is sharing the same content, when someone

:returnLineNumberTable:line 1:0public static void increase (); code:0: getstatic #2//Field i:i, the value of I is taken to the top of the Operation Stack, and the volatile is guaranteed to be correct at this time. 3:iconst_14:iadd//increase, but other threads may have increased the I value a lot at this time 5:p Utstatic #2//Field i:i, the I value of this already out of date is synchronized back to main memory, and I value is destroyed. 8:returnlinenu

can hold this lock at most. When thread a attempts to acquire a lock held by thread B, thread A must wait or block until thread B releases the lock. If B never releases the lock, then a will always wait for it to continue.2.3 Re-entry of the lockIf a thread attempts to acquire a lock that is already held by itself, the request succeeds. The re-entry further enhances the encapsulation of the locking behavior, thus simplifying the development of object-oriented

Java Concurrency Programming: synchronizedAlthough multi-threading programming greatly improves efficiency, it also poses some pitfalls. For example, two threads that insert non-duplicated data into a database table can cause the same data to be inserted in the database. Today we come together to discuss thread safety