列表清单 [英] List of Lists of Lists

问题描述

我是Java的新手，我需要列出一系列列表。我可以在python中做到这一点，因为列表的元素可以是一个列表，所以在嵌入列表中 list [0] 将引用一个列表并且 list [0] [0] 将引用嵌入列表的zeroeth元素。有没有简单的方法在java中实现这种行为？

I'm new to Java and I need to make a list of lists of lists. I could do it in python because an element of a list can be a list so in an embedded list list[0] would refer to a list and list[0][0] would refer to the zeroeth element of the embedded list. Is there any easy way to implement this behavior in java?

推荐答案

所有其他答案在技术上都是正确的，但恕我直言，如果你实施列表列表的粗略列表，您没有在适当的抽象级别处理您的数据。例如，我很确定列表列表在您的业务领域中已经意味着某些东西。将这个东西封装在另一个对象中，这样你就可以得到一个List< Something>而不是难以使用和维护List< List< List< Object>>>。

All the other answers are technically correct, but IMHO if you implement a rough List of Lists of Lists you are not treating your data at the right level of abstraction. For example I am pretty sure that a List of Lists already means "something" in your business domain. Encapsulate this "something" in another object so you can just have a List<Something> instead of a difficult to use and maintain List<List<List<Object>>>.

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