顾名思义LinkedHashMap是比HashMap多了一个链表的结构。与HashMap相比LinkedHashMap维护的是一个具有双重链表的HashMap,LinkedHashMap支持2中排序一种是插入排序,一种是使用排序,最近使用的会移至尾部例如 M1 M2 M3 M4,使用M3后为 M1 M2 M4 M3了,LinkedHashMap输出时其元素是有顺序的,而HashMap输出时是随机的...
generated linkedhashmap:{Java=4,JavaScript=10,Python=6,C++=3,Ruby=4} From the output, you can see that the first generated map has lost the order; in the list,Rubycomes last, but on the map,Pythoncame last. The same is true for the second example because we are not specifying which...