在Qt GUI中，使用信号&；slots-它将传递的事件解耦。当我创建一些抛出信号的小部件时，我不必事先知道谁能得到它，然后通过connect指定连接。
Java/Swing中的并行是什么？你能指出在这个问题上的好资源吗？
如果现有EventListener实现满足您的需求，您可以创建自己的自定义事件。每个JComponent包含EventList。您可以使用EventListenerListAPI以启用您的自定义JComponent子类来激发您的自定义事件。
这事件侦听器教程介绍了使用侦听器处理事件的基本知识。
为信号连接插槽类似于将EventListener添加到事件生成对象。
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