import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "^((((31[- /.](0?[13578]|1[02]))|((29|30)[- /.](0?[1,3-9]|1[0-2])))[- /.](1[6-9]|[2-9]\\d)?\\d{2})|(29\\/0?2[- /.](((1[6-9]|[2-9]\\d)?(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))))|(0?[1-9]|1\\d|2[0-8])[- /.]((0?[1-9])|(1[0-2]))[- /.]((1[6-9]|[2-9]\\d)?\\d{2})) (20|21|22|23|[0-1]?\\d):[0-5]?\\d:?[0-5]?\\d$";
final String string = "1-1-2015 23:59:59";
final Pattern pattern = Pattern.compile(regex);
final Matcher matcher = pattern.matcher(string);
if (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