How to have an array of volatile booleans in Java

问题:

So I want an array with 10 volatile booleans, not a volatile array with 10 booleans. It probably does not even make sense to have a volatile array reference, correct me if I am wrong.

回答1:

If it's only 10 and is always 10, you could simply write:

private volatile boolean b1, b2, ..., b10;

A possibly cleaner way would be to use an AtomicIntegerArray(10) and map between integers and booleans (0=false, 1=true).

You should clarify the reason why you need 10 volatile booleans: there may be a better way.

回答2:

I believe the only way is to have a AtomicBoolean[] or an AtomicIntegerArray. Then they do not need to be volatile. Its elements will be.

If you want more fun, check this question: Which is "better". AtomicIntegerArray (1/0 as true/false) versus AtomicBoolean[]?