Extend an existing collection class that already implements Iterable (and therefore already supports for/in).

扩展现有的、已经实现了 Iterable（因此也就已经支持for/in）的集合类。

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Data: An object; a generic reference that is carried along to listeners; often a collection class (such as a Vector or Hashtable) or a customized data object.

data：一个对象；传递给侦听程序的一般引用；常常是一个集合类(如vector或Hashtable)或一个定制的数据对象。

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Keeping the reference to the property change listener means the Person POJO has to keep some kind of collection class (such as ArrayList) to contain all the references.

保持引用属性变更监听器意味着PersonPOJO必须保留某种类型的集合类(例如arraylist)来包含所有引用。

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An alternative example might include putting these entries into a collection class or database instead, particularly if a great deal of manipulation were to take place after the parse.

而另一个示例中则是把这些实体放在一个集合类或数据库中，特别是如果有大量的操作都发生在解析之后。

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A container is a specialized collection class that allows you to track your components, and manages the interaction of your components with other components and the external application environment.

容器是一种专用的集合类，它使您能够跟踪组件并管理您的组件与其他组件及外部应用程序环境的交互。

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But others will be as simple as writing a custom algorithm or a simple extension to an existing Collection class.

但是另一些则非常简单，只需编写一个定制算法，或者已有collection类的简单的扩展。

youdao

But others will be as simple as writing a custom algorithm or a simple extension to an existing Collection class.

但是另一些则非常简单，只需编写一个定制算法，或者已有collection类的简单的扩展。

youdao