具有键/值对的java集合，并且根据插入顺序排序 [英] java collection that has key/value pair, and is ordered according to insert order

问题描述

我想要的东西，我可以插入键/值对，顺序是我插入的项目的顺序。

I want something where I can insert key/value pairs, and the order is the order that I insert the items in.

我看到一些关于地图的，但似乎我必须为他们写我自己的比较器。

I have seen some posts regarding map's, but it seems I have to write my own comparator for them.

我想要插入的第一个项目是第一个存储，第二个是第二个项目

I want the first item I insert to be the first stored, and the 2nd be the 2nd item in the collection ,etc.

推荐答案

尝试使用 LinkedHashMap javadocs ：

Map接口的哈希表和链表实现，具有可预测的迭代顺序这个实现不同于HashMap，因为它维护一个贯穿其所有条目的双向链表。此链接列表定义了迭代排序，它通常是将键插入到地图中的顺序（插入顺序）。

Hash table and linked list implementation of the Map interface, with predictable iteration order This implementation differs from HashMap in that it maintains a doubly-linked list running through all of its entries. This linked list defines the iteration ordering, which is normally the order in which keys were inserted into the map (insertion-order).

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