java 将大字符串拆分为 SET 项
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splitting a large string into SET items
提问by Achilles
Possible Duplicate:
Java - easily convert array to set
可能的重复：
Java - 轻松地将数组转换为集合
Can someone help me with a version of the following expression that I can use for SET instead of ArrayList ?
有人可以帮助我使用以下表达式的一个版本，我可以将其用于 SET 而不是 ArrayList 吗？
ArrayList<String> items = new ArrayList<String>(Arrays.asList(comment.split(", ")));
P.S.: Comment is a large string of words split with a ",". Need to make an individual item of the word by splitting them from the comma sections.
PS：评论是一大串单词，用",". 需要通过将它们从逗号部分分开来制作单词的单个项目。
回答by Konrad Reiche
You use the same approach, just passing the converted array to the constructor of a Setimplementation:
您使用相同的方法，只需将转换后的数组传递给Set实现的构造函数：
Set<String> items = new HashSet<String>(Arrays.asList(comment.split(", ")));
Further simplification are not possible without third-party libraries, but there are no drawbacks, since Arrays.asListexecutes in constant time O(1).
如果没有第三方库，进一步简化是不可能的，但没有缺点，因为Arrays.asList在恒定时间O(1) 内执行。
