用Java拆分字符串不起作用

Question

I have a string in java that looks something like:

holdingco^(218) 333-4444^scott@holdingco.com

I set a string variable equal to it:

String value = "holdingco^(218) 333-4444^scott@holdingco.com";

Then I want to split this string into it's components:

String[] components = value.split("^");

However it does not split up the string. I have tried escaping the carrot delimiter to no avail.

Answer 1

Use

String[] components = value.split("\\^");

The unescaped ^ means beginning of a string in a regex, and the unescaped $ means end. You have to use two backslashes for escaping, as the string literal "\\\\" represents a single backslash, and that's what regex needs.

If you tried escaping with one backslash, it didn't compile, as \\^ is not a valid escape sequence in Java.

Answer 2

try with: value.split("\\\\^"); this should work a bit better