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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.format.DateTimeFormatter;
  7. import java.time.LocalDate;
  8. import java.time.format.DateTimeParseException;
  9.  
  10. /* Name of the class has to be "Main" only if the class is public. */
  11. class Ideone
  12. {
  13. 	public static void main (String[] args) throws java.lang.Exception
  14. 	{
  15. 		System.out.println("Esta data é válida! " + new DateValidator().isValid("10/12/2017"));
  16. 		System.out.println("Esta data é inválida! " + new DateValidator().isValid("10122017"));
  17. 	}
  18. }
  19.  
  20.     class DateValidator {
  21.  
  22.        public boolean isValid(String date) {
  23.        	  try {
  24.              DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd/MM/yyyy");
  25.              LocalDate d = LocalDate.parse(date,formatter);	
  26.              return true;
  27.        	  } catch (DateTimeParseException e) {
  28.        	  	return false;
  29.        	  }   
  30.        }
  31.     }
Success #stdin #stdout 0.16s 4386816KB
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Standard input is empty
stdout
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Esta data é válida! true
Esta data é inválida! false
https://ideone.com/o7mRI4
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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