Java 并发编程之 AtomicIntergerArray AtomicLongArray AtomicReferenceArray
Java juc About 1,266 words说明
原子并发数组,保证在多线程下对每个索引位置上的元素的原子性。
AtomicIntergerArray
Integer
类型数组。
public class AtomicIntegerArrayDemo {
public static void main(String[] args) {
AtomicIntegerArray atomicIntegerArray = new AtomicIntegerArray(10);
atomicIntegerArray.set(0, 100);
atomicIntegerArray.compareAndSet(0, 100, 2021);
System.out.println(atomicIntegerArray.get(0));
}
}
AtomicLongArray
Long
类型数组。
public class AtomicLongArrayDemo {
public static void main(String[] args) {
AtomicLongArray atomicLongArray = new AtomicLongArray(10);
atomicLongArray.set(0, 100);
atomicLongArray.compareAndSet(0, 100, 2021);
System.out.println(atomicLongArray.get(0));
}
}
AtomicReferenceArray
引用类型数组。
public class AtomicReferenceArrayDemo {
public static void main(String[] args) {
AtomicReferenceArray<Object> objectAtomicReferenceArray = new AtomicReferenceArray<>(10);
System.out.println(objectAtomicReferenceArray.get(0));
objectAtomicReferenceArray.set(0, new Object());
System.out.println(objectAtomicReferenceArray.get(0));
objectAtomicReferenceArray.compareAndSet(1, null, new Object());
System.out.println(objectAtomicReferenceArray.get(1));
}
}
Views: 1,043 · Posted: 2021-09-24
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