问题描述
我有一个字符串说 123dance456 我需要拆分成两个字符串，包含子字符串 dance之前的第一个子字符串（即 123 ）和子字符串之后跳舞（即 456 ）。我需要找到它们并将它们保存在单独的字符串变量中，例如 String firstSubString = 123; 和String secondSubString = 456; 。
I have a string say 123dance456 which I need to split into two strings containing the first sub-string before the sub-string dance (i.e. 123) and after the sub-string dance (i.e. 456). I need to find them and hold them in separate string variables, say String firstSubString = 123; and String secondSubString = 456;.
是否有任何给定的String方法可以做到这一点？
Is there any given String method that does just that?
推荐答案
您可以使用。做这样的事情：
You can use String.split(String regex). Just do something like this:
String s = "123dance456";
String[] split = s.split("dance");
String firstSubString = split[0];
String secondSubString = split[1];
请注意，如果dance发生在原始字符串中不止一次， split（）将在每次出现时拆分 - 这就是返回值为数组的原因。
Please note that if "dance" occurs more than once in the original string, split() will split on each occurrence -- that's why the return value is an array.
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