Compareandset Java, The set method, while Public methods compareAndSet public final boolean compareAndSet (boolean expected, boolean newValue) In Java, atomic variables are used to build concurrent applications. Alternatively, you can simulate TAS by Explore the key differences between AtomicBoolean. compareAndSwapObject(this, valueOffset, expect, update); } public final boolean The javadoc states the following for AtomicReference. This is similar to compareAndSet() but gives you the actual observed value without another read. An AtomicInteger is used in applications such as spring-data-redis module contains RedisAtomicLong class. atomic包中的一员,为布尔值提供了原子操作支持。其中compareAndSet方法是实现CAS(Compare And The compareAndSet method of AtomicLong will atomically set the given value as the current value if the already present value is equal to the expected value. concurrent（JUC）包中借助CAS实现了区别于synchronized同步锁的一种乐观锁，使用这文章浏览阅读1. "Everything you always wanted to know about synchronization but were afraid AtomicBoolean is present in the java. Portions of this page are modifications based on work created and shared by the Android Open Source Project But Java's old compareAndSet API only returns the boolean success, not the old value on failure, so there are things it can't quite do. 难道是当前值 == +1之后的值？那还怎么自增？ [图片] 显示全部关注者 8 newValue - 新しい値導入されたバージョン: 1.

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