https://www.cnblogs.com/111testing/p/6602603.html
https://blog.csdn.net/qq_33280890/article/details/73755553
數(shù)組(array):長度固定,元素都是同一類型,可以存放基本數(shù)據(jù)類型
容器類(ArrayList, LinkedList,HashSet,HashMap,Vector, ): 長度可變,可以存放任意類型的對象,如果存放基本類型數(shù)據(jù)需要包裝類(Integer,Double等)
ArrayList LinkedList Vector區(qū)別,HashMap Hash
https://www.cnblogs.com/jinlinFighting/p/5775281.html