import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "(?<!\\S)(\\w+)@([\\w.]+)(?::([^@\\n]+)(?!\\S))?";
final String string = "#1234 10% activity@timing:information and other activity2@timing:adws\n"
+ "#3132 10% testing@1.10:test message frontend@44min:other comments \n"
+ "#3132 10% testing@1.10:test message \n"
+ "#3132 10% testing@1.10\n\n";
final Pattern pattern = Pattern.compile(regex, Pattern.UNICODE_CASE);
final Matcher matcher = pattern.matcher(string);
while (matcher.find()) {
System.out.println("Full match: " + matcher.group(0));
for (int i = 1; i <= matcher.groupCount(); i++) {
System.out.println("Group " + i + ": " + matcher.group(i));
}
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html