Java Swing：是否使用短语“在继承时偏爱组成”？应用？ [英] Java Swing: Does the phrase "favor composition over inheritance" apply?

问题描述

短语偏爱组成而不是继承是否适用于Swing组件？我想收集一些关于该主题的专业意见，并在继续设计UI之前更容易维护哪些代码。

Does the phrase "favor composition over inheritance" apply to Swing components? I'd like to gather some professional opinions about the subject and which code is easier to maintain before I go ahead and design a UI.

推荐答案

短语倾向于继承而不是继承是否适用于Swing组件？

Does the phrase "favor composition over inheritance" apply to Swing components?

是。

我唯一扩展Swing组件的时间是当我需要重写一个或多个方法时。例如，当我想重写paintComponent方法时，我将扩展一个JPanel。

The only time I extend a Swing component is when I need to override one or more of the methods. For instance, I'll extend a JPanel when I want to override the paintComponent method.

在所有其他情况下，我的类都将包含我需要的Swing组件。这使我可以分离类方法：

All other times, my class will contain the Swing component(s) I need. This allows me to separate my class methods:

frame.getMethod();

来自Swing组件类方法：

from the Swing component class methods:

frame.getFrame().getPreferredSize();

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