JUC common classes
It refers to the class under the import java.util.concurrent package, which is usually used to solve the problem of multi-threaded coordination
lock and derived ReentrantLockSecurity classes of various containers: CopyOnWriteArrayList, ConcurrentHashMapUnsafe collection to safe collection: Collections.synchronizedLis()...
Added by greenhorn666 on Thu, 21 Oct 2021 20:04:15 +0300
The JDK concurrency package (package name: java.util.concurrent, hereinafter referred to as JUC) provides many tool classes for concurrent operations, such as ReentrantLock, CountDownLatch, etc. The foundation of these concurrency utility classes is abstractqueuedsynchronizer *AQS maintains a shared resource ...
Added by dr_freak on Fri, 15 Oct 2021 01:23:24 +0300
1, Principle of Atomic atomic class:
Atomic atomic operation class is implemented based on lockless CAS + volatile, and all methods in the class are decorated with final to further ensure thread safety. The specific implementation of CAS algorithm lies in the Unsafe class. All methods of Unsafe ...
Added by Oxymen on Mon, 11 Oct 2021 04:00:18 +0300
Silicon Valley JUC Video
The difference between threads and processes
Processes are the basic unit of program running, and a program running is a process.
Threads are the basic unit of cpu scheduling and share memory
juc is short for the java.util.courrent toolkit and appeared after jdk1.5
1.2 Thread State
Added by starsol on Fri, 24 Sep 2021 19:58:17 +0300
Multithreading advanced = JUC concurrent programming
1. What is JUC
JUC is short for java.util.concurrent.
To sum up in Chinese, JUC means java Concurrent Programming toolkit.
The essence of concurrent programming is to make full use of CPU resources.
2. Threads and processes
Process: it is a single sequential control process in program e ...
Added by swon on Mon, 20 Sep 2021 08:25:59 +0300