小编Aar*_*Guo的帖子

   public class ThinkThreadLocal {

        public static int data;

        public static void main(String[] args) {
            for(int i = 0; i < 2; i++) {
                new Thread(new Runnable(){

                    @Override
                    public void run() {
                        data = new Random().nextInt();
                        System.out.println(Thread.currentThread().getName() + " gene data:" + data);
                    }

                }).start();
            }
        }
   }

为什么它打印相同的值？

Thread-0 gene data:-751128970
Thread-1 gene data:-751128970