运行线程的对象如何与包含类进行通信？

Question

Class Person()
{
Eyes eyes;

Person(){
eyes = new Eyes();
eyes.watching();
}

Thread updateGUI(){
//want to safely  report what's being seen
}

}


Class Eyes()
{
String whatIsee;

public void watching()
{
    Task task = new Task()
    {
        while(1)
        {
        whatIsee = look();
        //then send what I see back to Person
        }
    }
}
}

我可以传递一个＆＃34; whatIHaveSeen＆＃34;进入Eyes构造函数。这样做。我知道需要做一些工作来保证线程安全。我只是想要并理解如何去做。