import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "\\b[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}Z\\b(?<flagE>E[A-Z0-9]{1,4} [A-Z][0-9]{6})|(?<flagW>W [A-Z0-9]{1,4})|[A-Z0-9]{1,4}\\b";
final String string = "2014-08-29T06:44:03Z X12 IK 888T\n"
+ " G I5J P9\n"
+ " 544T ZUK ONI\n"
+ " E6U5 Z339988 T8 N55\n"
+ " 886 W 9ZT T95";
final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE);
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