How to declare array elements volatile in Java?

Question

Is there a way to declare array elements volatile in Java? I.e.

volatile int[] a = new int[10];

declares the array referen

Answer 1

Use AtomicIntegerArray or AtomicLongArray or AtomicReferenceArray

The AtomicIntegerArray class implements an int array whose individual fields can be accessed with volatile semantics, via the class's get() and set() methods. Calling arr.set(x, y) from one thread will then guarantee that another thread calling arr.get(x) will read the value y (until another value is read to position x).

See:

• AtomicIntegerArray
• AtomicLongArray
• AtomicReferenceArray
• java.util.concurrent.atomic Package Summary