The data displayed is typically kept in an ArrayList reference.

显示的数据通常保存在一个ArrayList引用中。

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Remember that this input should be the ArrayList of your data model.

记住，此输入必须是数据模型的ArrayList。

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For example, we create the ArrayList first and add three book instances to it.

例如，先创建ArrayList并向其中添加三个书实例。

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For example, we create the ArrayList first and add three book instances to it.

例如，先创建ArrayList并向其中添加三个书实例。

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