java----atomicInteger

atomicInteger原理

class A{
    public final static void main(String[] args) {
        AtomicInteger atomicInteger = new AtomicInteger();


        for (int i = 0; i < 10; i++) {
            atomicInteger.incrementAndGet();
        }
        
        //atomicInteger.incrementAndGet()的原理，利用CAS原理
        while(true){
            int expectValue = atomicInteger.get();
            int updateValue = expectValue+1;
            if (atomicInteger.compareAndSet(expectValue,updateValue)){
                break;
            }
        }
        int value = atomicInteger.get();
    }
}