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2018-10-30

2018-10-30

作者: 怎样会更好 | 来源:发表于2018-10-30 17:39 被阅读0次
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/**
 * @author zhengbinMac
 */
public class NoVisibility {
    private static boolean ready;
    private static int number;
    private static class ReaderThread extends Thread {
        @Override
        public void run() {
            while(!ready) {
                Thread.yield();
            }
            System.out.println(number);
        }
    }
    public static void main(String[] args) {
        new ReaderThread().start();
        number = 42;
        ready = true;
    }
}

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