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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.text.*;
  7. import java.util.regex.Matcher;  
  8. import java.util.regex.Pattern;
  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) {
  14. 	    String dateFormat = "dd.MM.yyyy";
  15. 	    String[] arr = {
  16. 	        "19.02.1996",
  17. 	        "25.03",
  18. 	        null
  19. 	    };
  20. 	    for (String date: arr) {
  21. 	        if (isValidFormat(dateFormat, date)) {  // Проверка даты на валидность
  22. 	            System.out.println(date);
  23.                 // Делаем, что надо
  24. 	        }
  25. 	    }
  26. 	}
  27.  
  28. 	public static boolean isValidFormat(String format, String value) {
  29. 	    if (value == null)
  30. 	        return false;
  31. 	    Date date = null;
  32. 	    try {
  33. 	        SimpleDateFormat sdf = new SimpleDateFormat(format);
  34. 	        date = sdf.parse(value);
  35. 	        if (!value.equals(sdf.format(date))) {
  36. 	            date = null;
  37. 	        }
  38. 	    } catch (ParseException ex) {}
  39. 	    return date != null;
  40. 	}
  41.  
  42. }
Success #stdin #stdout 0.07s 4386816KB
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19.02.1996
https://ideone.com/xdW45W
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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