The 2020-11-04: Java, the general said the collections framework, # # f greatly architects a daily topic

CodePudding user response:

https://www.cnblogs.com/lusaisai/p/12385996.html

CodePudding user response:

Collection: the List and Set
List: arraylist, and linkedlist
Set: hashSet, treeSet

The Map: a hashmap, treemap, hashtable