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set list map

admin 1月 29, 2021 0

List

有序（插入顺序）、重复

ArrayList

LinkedList

Set

无序、不重复

EnumSet

HashSet

LinkedHashSet

TreeSet

Map

键值对，key不能重复，value可以重复

ConcurrentHashMap

EnumMap

HashMap

Hashtable

LinkedHashMap

TreeMap

WeakHashMap

http://www.javamadesoeasy.com/2016/02/difference-between-list-set-and-map-in.html