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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6. import java.time.*;
  7. import java.time.format.*;
  8.  
  9. /* Name of the class has to be "Main" only if the class is public. */
  10. class Ideone
  11. {
  12. 	public static void main (String[] args) throws java.lang.Exception
  13. 	{
  14.  
  15. 			System.out.println("29/02/2016 eh uma data valida? " + isDateValid("29/02/2016"));
  16. 			System.out.println("29/02/2017 eh uma data valida? " + isDateValid("29/02/2017"));
  17. 			System.out.println("31/06/2017 eh uma data valida? " + isDateValid("30/01/2017"));
  18. 			System.out.println("31/04/2017 eh uma data valida? " + isDateValid("31/04/2017"));
  19.  
  20. 	}
  21.  
  22. 	public static boolean isDateValid(String strDate) {
  23.         String dateFormat = "dd/MM/uuuu";
  24.  
  25.         DateTimeFormatter dateTimeFormatter = DateTimeFormatter
  26.         .ofPattern(dateFormat)
  27.         .withResolverStyle(ResolverStyle.STRICT);
  28.         try {
  29.             LocalDate date = LocalDate.parse(strDate, dateTimeFormatter);
  30.             return true;
  31.         } catch (DateTimeParseException e) {
  32.            return false;
  33.         } 
  34.     }
  35. }
  36.  
  37.  
  38.  
Success #stdin #stdout 0.14s 4386816KB
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29/02/2016 eh uma data valida? true
29/02/2017 eh uma data valida? false
31/06/2017 eh uma data valida? true
31/04/2017 eh uma data valida? false
https://ideone.com/dEPvpS
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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