CODEWITHSUNDEEP
javaregex
user3725793
user3725793

Reputation: 13

How to detect IP adress in ping string using regex

String s = "PING www.google.com (173.194.70.106) 56(84) bytes of data."
boolean z = pattern.matches("\\(([0-9]{1,3}\\.){3}[0-9]{1,3}\\)", s);

z will be 0. Where am I making a mistake given that the sequence that I am trying to detect is (X.X.X.X) so for s that would be (173.194.70.106)?

egrep -e "\(([0-9]{1,3}\.){3}[0-9]{1,3}\)" test gives the desired result so I assume it's a problem between me and java.

Upvotes: 1

Views: 243

Answers (1)

user432
user432

Reputation: 3534

matches() will try to match the whole string on the regular expression.

For your purpose you could use Matcher.find():

String s = "PING www.google.com (173.194.70.106) 56(84) bytes of data.";
Pattern p = Pattern.compile("\\(([0-9]{1,3}\\.){3}[0-9]{1,3}\\)");
Matcher m = p.matcher(s);
if (m.find()) {
    System.out.println(m.group(0));
}

Upvotes: 3

Related Questions