线程测试

public class ThreadTest
{
    private Object lock = new Object();

    public ThreadTest(final String str, final int nSleep)
    {
        Thread syncThread = new Thread(new Runnable()
        {
            int num = 0;
            public void run()
            {
                while (num < 20) {
                    try {
                        if (true) {
                            Thread.sleep(nSleep);
                        }
                        synchronized (lock) {
                            num++;
                            System.out.println(str + " The " + num + "th call in");
                        }
                    } catch (InterruptedException e) {
                        Thread.currentThread().interrupt();
                    }
                }
            }
        });
        syncThread.setName("My SyncOperation Thread");
        syncThread.start();
    }

    public static void main(String[] args)
    {
        ThreadTest tt = new ThreadTest("a", 10000);
        ThreadTest ttt = new ThreadTest("b", 1000);
    }
}