fork download
copy 
  1. import java.text.DateFormat;
  2. import java.text.ParseException;
  3. import java.text.SimpleDateFormat;
  4. import java.util.ArrayList;
  5. import java.util.Date;
  6. import java.util.List;
  7. import java.util.Locale;
  8.  
  9. public class Main {
  10.  
  11.     public static void main(String[] args) {
  12.         List<String> unparsedDates = new ArrayList<String>();
  13.         unparsedDates.add("6 July 1892");
  14.         unparsedDates.add("9 May 1915");
  15.         unparsedDates.add("February 335");
  16.         unparsedDates.add("1768-02-12");
  17.         unparsedDates.add("23 september 63 bc");
  18.         unparsedDates.add("19 august ad 14");
  19.  
  20.         DateFormat df = new SimpleDateFormat("yyyy-MM-dd G", Locale.ENGLISH);
  21.         for (String unparsedDate : unparsedDates) {
  22.             try {
  23.                 Date parsedDate = DateParser.getParsedDate(unparsedDate);
  24.                 System.out.println(df.format(parsedDate));
  25.             } catch (IllegalArgumentException ex) {
  26.                 System.err.println(ex.getMessage());
  27.             }
  28.         }
  29.     }
  30. }
  31.  
  32. class DateParser {
  33.  
  34.     private static final Locale locale = Locale.ENGLISH;
  35.     private static final DateFormat[] dateFormats = {
  36.         new SimpleDateFormat("dd MMMM yyyy G", locale),
  37.         new SimpleDateFormat("dd MMMM G yyyy", locale),
  38.         new SimpleDateFormat("yyyy-MM-dd", locale),
  39.         new SimpleDateFormat("MMMM yyyy", locale),
  40.         new SimpleDateFormat("dd MMMM yyyy", locale)};
  41.  
  42.     public static Date getParsedDate(String unparsedDate) {
  43.         for (DateFormat dateFormat : dateFormats) {
  44.             try {
  45.                 Date parsedDate = dateFormat.parse(unparsedDate);
  46.                 return parsedDate;
  47.             } catch (ParseException ex) {
  48.             }
  49.         }
  50.         throw new IllegalArgumentException("Cannot parse provided date: " + unparsedDate);
  51.     }
  52. }
Success #stdin #stdout 0.06s 246080KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
1892-07-06 AD
1915-05-09 AD
0335-02-01 AD
1768-02-12 AD
0063-09-23 BC
0014-08-19 AD
https://ideone.com/J4nq3
language:
Java (HotSpot 12)
created:
11 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!