slowoperation.java

Java程序设计技巧与开发实例附书源代码。

import java.util.*;

class SlowOperation
        extends Thread
{
    private List list = null;
    public SlowOperation(List _list)
    {
        list = _list;
        System.out.println("Starting slow operation ...");
        start();
    }

    public void run()
    {
        FastOperation fast = new FastOperation(list);
        list.add(0, new Double( -10));
        System.out.println("Slow thread sees element: " + list.get(0));
    }
}