List, ArrayList, LinkedList, ArrayCopyOnWriteList, Vector
线程安全: Vector
, ArrayCopyWriteList
线程非安全:ArrayList
, LinkedList
数组: ArrayList
Vecotr
ArrayCopyWriteList
链表:LinkedList
ArrayList
LinkedList
Vector
CopyOnWriteArrayList
List
是有序的ArrayList
默认空间大小为10new ArrayList<>()
内部的数组实际上引用的是一个空数组ArrayList
扩容规则 Collections.sort(list, new Comparator(){xxx})
Comparater
接口后,可以直接调用 Collections.sort(list);