import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "[0-9]{2} ?([05][1-9]|[16][02]) ?(0[1-9]|[12][0-9]|3[0-1]) ?\\/?[0-9]{3,4}";
final String string = "821206/0351 \n"
+ "82 12 06 0351 \n"
+ "721206 0351 \n"
+ "82 82 23/3222 \n"
+ "82 52 12/342\n"
+ "825212342\n"
+ "82 61 45 2222\n"
+ "821206 0351";
final Pattern pattern = Pattern.compile(regex);
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