Recruitment of first-line large factories , R & D of high concurrency system , Advanced advanced programmer … Concurrent programming is a must . And go deep into its principles 、 Source code to write high-quality code .
JDK8 The concurrent programming practice source code Exploration Series involves java.util.concurrent The principle of almost all classes or interfaces in a package 、 Use actual combat 、 Source code explanation .
In the middle may be interspersed with the bottom layer of computer principle 、CPU、 operating system 、JMM、 Byte code analysis and other knowledge points , Deeper 、 Master all aspects of concurrent programming .
JDK8 And contract overview
The following information is based on openjdk8 describe ：
java.util.concurrent The direct bag contains 59 Class or interface .
java.util.concurrent.atomic It contains 18 Class or interface .
java.util.concurrent.locks It contains 11 Class or interface .
Atomic classes (atomic package )
explain , Atomic class or CAS Operation depends on Unsafe class , So this class also needs to understand .
A class
- AtomicInteger
- AtomicBoolean
- AtomicIntegerArray
- AtomicLong
- AtomicReference
Two category
- AtomicMarkableReference
- AtomicStampedReference
Three types of
- AtomicIntegerFieldUpdater
- AtomicLongFieldUpdater
- AtomicReferenceFieldUpdater
Four types of
- Striped64
- LongAdder
- DoubleAdder
- LongAccumulator
- DoubleAccumulator
lock (locks package 、AQS)
A class
- AbstractQueuedSynchronizer
- Lock Interface
- ReentrantLock
- Condition
- LockSupport
Two category
- ReadWriteLock Interface
- ReentrantReadWriteLock
- StampedLock
Concurrent tool class (concurrent Direct package )
- CountDownLatch
- CyclicBarrier
- Semaphore
- Exchanger
- Phaser
Concurrent collection classes (concurrent Direct package )
- ConcurrentHashMap
- ConcurrentLinkedQueue
- ConcurrentSkipListMap
- CopyOnWriteArrayList
Queue related classes (concurrent Direct package )
- ArrayBlockingQueue
- LinkedBlockingQueue
- PriorityBlockingQueue
- SynchronousQueue
- DelayQueue
- LinkedTransferQueue
Thread pool (concurrent Direct package )
- Executor 、 ExecutorService 、ThreadFactory、RejectedExecutionHandler Interface
- Executors
- ThreadPoolExecutor
- ScheduledThreadPoolExecutor
- ThreadLocalRandom
- TimeUnit
Fork/Join
- ForkJoinPool
- ForkJoinTask
- ForkJoinWorkerThread
Callable&Future&CompletableFuture
- Callable
- FutureTask
- CompletableFuture
- ExecutorCompletionService