import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "(?:\\b(?P<month>0?[1-9]|0?1[012])[\\/-](?P<day>0?[1-9]|[12][0-9]|3[01])[\\/-](?P<year>\\d{2,4})\\b)|(?:(?P<month1>0?[1-9]|1[012])[\\/](?P<year1>\\d{4})\\b)|(?:\\b(?P<month2>Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)[a-z]{0,6}[. \\/-]+(?P<day2>0?[1-9]|[12][0-9]|3[01])(?:th|st|nd)?[ ,\\/-]+(?P<year2>\\d{2,4})\\b)|(?:\\b(?P<day3>0?[1-9]|[12][0-9]|3[01])[ ,\\/-]+(?P<month3>Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)[a-z]{0,6}[,. \\/-]+(?P<year3>\\d{2,4})\\b)|(?:(?P<month4>Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)[a-z]{0,6}[,. \\/-]+(?P<year4>\\d{2,4})\\b)|(?:(?P<year5>[12]\\d{3})\\b)";
final String string = "\n"
+ "04/20/2009; 04/20/09; 4/20/09; 4/3/09\n"
+ "Mar-20-2009; Mar 20, 2009; March 20, 2009; Mar. 20, 2009; Mar 20 2009;\n"
+ "20 Mar 2009; 20 March 2009; 20 Mar. 2009; 20 March, 2009\n"
+ "Mar 20th, 2009; Mar 21st, 2009; Mar 22nd, 2009\n"
+ "Feb 2009; Sep 2009; Oct 2010\n"
+ "6/2008; 12/2009\n"
+ "2009; 2010\n"
+ "011/14/83\n"
+ "16/22 \n"
+ "9/22\n"
+ "r1978\n"
+ "n4/2004\n"
+ "e12/2007\n"
+ "08-810-7787\n"
+ "pOct 2015\n"
+ "Janaury 1993\n"
+ "Married to husband for 50+ years\n\n"
+ "0 03/25/93 Total time of visit (in minutes):\\n\n"
+ "1 6/18/85 Primary Care Doctor:\\n\n"
+ "2 sshe plans to move as of 7/8/71 In-Home Servic...\n"
+ "3 7 on 9/27/75 Audit C Score Current:\\n\n"
+ "4 2/6/96 sleep studyPain Treatment Pain Level (N...\n"
+ "5 .Per 7/06/79 Movement D/O note:\\n\n"
+ "6 4, 5/18/78 Patient's thoughts about current su...\n"
+ "7 10/24/89 CPT Code: 90801 - Psychiatric Diagnos...\n"
+ "8 3/7/86 SOS-10 Total Score:\\n\n"
+ "9 (4/10/71)Score-1Audit C Score Current:\\n\n"
+ "10 (5/11/85) Crt-1.96, BUN-26; AST/ALT-16/22; WBC...\n"
+ "11 4/09/75 SOS-10 Total Score:\\n\n"
+ "12 8/01/98 Communication with referring physician...\n"
+ "13 1/26/72 Communication with referring physician...\n"
+ "14 5/24/1990 CPT Code: 90792: With medical servic...\n"
+ "15 1/25/2011 CPT Code: 90792: With medical servic...\n"
+ "16 4/12/82 Total time of visit (in minutes):\\n\n"
+ "17 1; 10/13/1976 Audit C Score, Highest/Date:\\n\n"
+ "18 4, 4/24/98 Relevant Drug History:\\n\n"
+ "19 ) 59 yo unemployed w referred by Urgent Care f...\n"
+ "20 7/21/98 Total time of visit (in minutes):\\n\n"
+ "21 10/21/79 SOS-10 Total Score:\\n\n"
+ "22 3/03/90 CPT Code: 90792: With medical services\\n\n"
+ "23 2/11/76 CPT Code: 90792: With medical services\\n\n"
+ "24 07/25/1984 CPT Code: 90791: No medical services\\n\n"
+ "25 4-13-82 Other Child Mental Health Outcomes Sca...\n"
+ "26 9/22/89 CPT Code: 90792: With medical services\\n\n"
+ "27 9/02/76 CPT Code: 90791: No medical services\\n\n"
+ "28 9/12/71 [report_end]\\n\n"
+ "29 10/24/86 Communication with referring physicia...";
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