Whats the regular expression for a colon separated value?

问题

If I have a string such as:

blah blah item: value blah blah

What would the expression be to just get value?

回答1:

You can use this regex

:\s*(\w+)

$1 or group 1 has the required value

---

\s* matches 0 to many spaces

\w+ matches 1 to many characters which can be any 1 of [a-zA-Z\d_]

回答2:

The regular expression would be

:

As in,

String value = yourString.split(":")[1].split(" ")[0]

回答3:

for your exact String, using **String.split()**

String s="blah blah item: value blah blah";
System.out.println(s.split("(:\\s+)")[1].split("\\s")[0]);

Output: value

来源：https://stackoverflow.com/questions/13727892/whats-the-regular-expression-for-a-colon-separated-value