按分隔符数量拆分字符串 [英] Splitting a String by number of delimiters

问题描述

我正在尝试将一个字符串拆分为一个字符串数组，可能有多种组合，我试过了:

I am trying to split a string into a string array, there might be number of combinations, I tried:

String strExample = "A, B";
//possible option are:

1. A,B 
2. A, B
3. A , B
4. A ,B

String[] parts;
parts = strExample.split("/"); //Split the string but doesnt remove the space in between them so the 2 item in the string array is space and B ( B)
parts = strExample.split("/| ");
parts = strExample.split(",|\\s+");

任何指导将不胜感激

推荐答案

用逗号分隔，用可选的空白字符括起来

To split with comma enclosed with optional whitespace chars you may use

s.split("\\s*,\\s*")

\s*,\s* 模式匹配

• \s* - 0+ 个空格
• , - 逗号
• \s* - 0+ 个空格

• \s* - 0+ whitespaces
• , - a comma
• \s* - 0+ whitespaces

如果您想确保没有前导/尾随空格，请考虑在拆分之前trim()对字符串进行处理.

In case you want to make sure there are no leading/trailing spaces, consider trim()ming the string before splitting.

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