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  1. import java.util.regex.*;
  2.  
  3. class Main {
  4. 	public static void main(String[] args) throws java.lang.Exception {
  5. 		parseInformation("1y30d");
  6. 		parseInformation("1y2m30mi");
  7. 		parseInformation("1y1mi");
  8. 		parseInformation("1y2m3d4h5mi6s");
  9. 	}
  10.  
  11. 	public static void parseInformation(String information) {
  12. 		Pattern p = Pattern.compile("(?:(\\d+)y)?(?:(\\d+)m(?!i))?(?:(\\d+)d)?(?:(\\d+)h)?(?:(\\d+)mi)?(?:(\\d+)s)?");
  13. 		Matcher m = p.matcher(information);
  14. 		while (m.find()) {
  15. 			if (m.group().isEmpty()) { continue; /* found nothing, go on */ }
  16. 			System.out.println(information + " found: '"+m.group()+"'");
  17. 			System.out.println("\t" + m.group(1) + " years");
  18. 			System.out.println("\t" + m.group(2) + " months");
  19. 			System.out.println("\t" + m.group(3) + " days");
  20. 			System.out.println("\t" + m.group(4) + " hours");
  21. 			System.out.println("\t" + m.group(5) + " minutes");
  22. 			System.out.println("\t" + m.group(6) + " seconds");
  23. 			System.out.println("");
  24. 		}
  25. 	}
  26. }
Success #stdin #stdout 0.07s 380160KB
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stdin
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Standard input is empty
stdout
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1y30d found: '1y30d'
	1 years
	null months
	30 days
	null hours
	null minutes
	null seconds

1y2m30mi found: '1y2m30mi'
	1 years
	2 months
	null days
	null hours
	30 minutes
	null seconds

1y1mi found: '1y1mi'
	1 years
	null months
	null days
	null hours
	1 minutes
	null seconds

1y2m3d4h5mi6s found: '1y2m3d4h5mi6s'
	1 years
	2 months
	3 days
	4 hours
	5 minutes
	6 seconds
https://ideone.com/NEJhv3
PATTERN e MATCHER - Extract date information
language:
Java (12.0.1)
created:
12 years ago
visibility:
secret

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