陆冬
Does a HashMap retain the order of its elements on the next read if it is constructed and "filled" as a LinkedHashMap?
Suppose I have a Java method that 开发者_高级运维returns a HashMapobject. Because a LinkedHashMap is a subclass of HashMap, I can return a LinkedHashMap from this method just fine.[详细]
2022-12-26 23:48 分类:问答