好玩的网站列表

1. EnumMap

• Can only be used with enum type keys
• It’s specialized implementation of Map Interface for use with enum type keys
• Internally using arrays
• stored in natural order
• not possible for collision
• much efficient compared with HashMap

2. HashMap

• Extends AbstrctMap and implement Map interface
• Internally using hashTable
• Possible for collision

Reference

1. https://www.geeksforgeeks.org/enummap-class-java-example/
2. https://walkingtechie.blogspot.com/2017/03/difference-between-enummap-and-hashmap.html

---

转载请注明来源，欢迎对文章中的引用来源进行考证，欢迎指出任何有错误或不够清晰的表达。可以在下面评论区评论，也可以邮件至 stone2paul@gmail.com