Java 哈希表相同的键具有不同的值....？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/4457623/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Hashtable same Key with different value....?
提问by Ravi Parmar
Is it possible with java that a hashtable can map the same keys to different values? .. How can I retrieve both value from hashtable...
java 是否有可能将哈希表映射到不同的值？.. 如何从哈希表中检索两个值...
采纳答案by The Scrum Meister
you cannot, unless you store the key's value as a list of values.
您不能，除非您将键的值存储为值列表。
take a look at google's Multimap: http://google-collections.googlecode.com/svn/trunk/javadoc/index.html?com/google/common/collect/Multimap.html
看看谷歌的 Multimap：http: //google-collections.googlecode.com/svn/trunk/javadoc/index.html?com/google/common/collect/Multimap.html
回答by gmhk
You cant do that, All the keys in the Hash map or Hash Table should be unique.
你不能这样做，哈希映射或哈希表中的所有键都应该是唯一的。
Else then you need to consider a different Collection
否则你需要考虑一个不同的集合
