import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "(?:[A-Za-z0-9!#$%&'*+/=?.^_`\\{|\\}~-]+(?:.[a-z0-9!#$%&'*+/=?^_`\\{|\\}~-]+)*|\\\"(?:[x01-x08x0bx0cx0e-x1fx21x23-x5bx5d-x7f]|[x01-x09x0bx0cx0e-x7f])*\\\")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|[(?:(?:(2(5[0-5]|[0-4][0-9])|1[0-9][0-9]|[1-9]?[0-9])).){3}(?:(2(5[0-5]|[0-4][0-9])|1[0-9][0-9]|[1-9]?[0-9])|[a-z0-9-]*[a-z0-9]:(?:[x01-x08x0bx0cx0e-x1fx21-x5ax53-x7f]|[x01-x09x0bx0cx0e-x7f])+)])";
final String string = "\"Maximilian Milde\" <max.milde@freenet.de>,<Telefonkonferenz@telefonkonferenz.de>, \"Model Woman, Petra\" <muster114@googlemail.com>, 'Sample Lady, Eva' <eva.muda@gmx.net>, \"'Sample Man, Bernhard'\" <Mustermann.bernhard@t-online.de>, \"'Sample Woman, Ute'\" <utemusterfrau@gmail.com>, \"'Sample, Gisela'\" <Giselamuster50@gmx.de>, 'Mumann, Helmut' <hemumann@googlemail.com>, \"'Mustermann, Alexander'\" <AlexanderMustermann@web.de>, \"'Muster, Vera'\" <v.muster@web.de>, \"'sample woman, Sandra\"\" <sandra.Musterfrau@gmx.net>, \"'Schubert, Ina\"\" <inas31@gmx.de, Seitz, Irmtraud, Irmtraud.s.e@googlemail.com, Kutz, Holger, Claudia Krüger, Milde, F... Mannheim";
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