Java线程实现的一个简单的时钟

其实代码第一行是package ....,不过是在公司写的，所以删除了。

import java.util.Date;

public class RunnableTest implements Runnable {

	private Date date = new Date();
	private Thread timeThread = null;

	public void start() {
		timeThread = new Thread(this);
		timeThread.start();
	}

	public void stop() {
		timeThread = null;
	}

	@SuppressWarnings("static-access")
	public void run() {
		Thread currentThread = Thread.currentThread();
		while (timeThread == currentThread) {
			date = new Date();
			System.out.println(date);
			try {
				timeThread.sleep(1000);
			} catch (InterruptedException e) {
				System.out.println(e.getMessage());
			}
		}
	}

	public static void main(String[] args) {
		RunnableTest test = new RunnableTest();
		test.start();
	}
}