将字符串拆分为单个单词并忽略其他所有内容

Question

我想将一个字符串拆分为单个单词。如果字符串是：

String s = "Practice makes perfect. you'll only get Perfect by practice. just practice!";

我想存储为：

String[] str = {"Practice", "makes", "perfect", "youll", "only", "get", "Perfect", "by", "practice", "just", "practice"};

如果我使用s.split("\\W")，you'll 会变成you ll。怎么弄到youll？

Answer 1

这可以通过首先删除'：来轻松完成

String[] str = s.replace("'", "").split("\\W+");

还将+ 添加到您的拆分中，以避免阵列中出现空槽。

输出：

[Practice, makes, perfect, youll, only, get, Perfect, by, practice, just, practice]

Answer 2

string.replaceAll("[\\W&&\\S]", "").split("\\s+");