Collection 类 本身 extends Threads

代码太多，只贴上关键代码

    private Object lock = new Object();
    private Object task = new Object();

    public String getSuspend() {
        return suspend;
    }

    public void setSuspend(String suspend) {
        this.suspend = suspend;
    }

        private void Execute(HashMap map) {
                .................
        long a = System.currentTimeMillis();
        for (int i = 0; i < list.size(); i++) {
            synchronized (task) {
                                // 我现在有一个SWING界面 有4个按钮，暂停按钮 setSuspend("1")
                if (getSuspend().equals("1")) {
                    try {
                        this.Notify("a"); // 当暂停按钮别按下否，开始循环检查 新的 getSuspend()
                        task.wait();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
                        ..............执行任务
        }
    }

    private void Resume() {
        synchronized (lock) {
            this.setSuspend("0");
            lock.notifyAll(); // 这里为什么不能把暂停的线程给唤醒呢？
            Thread.yield();
        }
    }

    private void Stop() {
        this.interrupt();
        this.Close();
        return;
    }

    private void Notify(String name) {
        Thread t = new Thread(name) {
            public void run() {
                boolean f = true;
                while (f) {
                    try {
                        if (getSuspend().equals("2")) {
                            f = false;
                            Resume();
                        } else if (getSuspend().equals("3")) {
                            f = false;
                            Stop();
                        }
                        Thread.sleep(1000);
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            }
        };
        t.start();
    }