The programmer should generally provide a void (no argument) and Collection constructor, as per the recommendation in the Collection interface specification.
根据Collection接口文档的推荐，程序员通常提供一个空（不含参数）的Collection构造函数。
The programmer should generally provide a void (no argument) and Collection constructor, as per the recommendation in the Collection interface specification.
根据Collection接口文档的推荐，程序员通常提供一个空（不含参数）的Collection构造函数。
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