SimpleDateFormat parse(string str) doesn’t throw an exception when str = 2011/12/12aaaaaaaaa?

by

The JavaDoc on parse(...) states the following:

parsing does not necessarily use all characters up to the end of the string

It seems like you can’t make SimpleDateFormat throw an exception, but you can do the following: 

SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/d");
sdf.setLenient(false);
ParsePosition p = new ParsePosition( 0 );
String t1 = "2011/12/12aaa";    
System.out.println(sdf.parse(t1,p));

if(p.getIndex() < t1.length()) {
  throw new ParseException( t1, p.getIndex() );
}

Basically, you check whether the parse consumed the entire string and if not you have invalid input.

More Related Contents:

  1. java.text.ParseException: Unparseable date
  2. java.text.ParseException: Unparseable date: "Augu 16, 1979" [duplicate]
  3. Y returns 2012 while y returns 2011 in SimpleDateFormat
  4. Illegal pattern character ‘T’ when parsing a date string to java.util.Date
  5. What is this date format? 2011-08-12T20:17:46.384Z
  6. Why is Java’s SimpleDateFormat not thread-safe? [duplicate]
  7. Java SimpleDateFormat(“yyyy-MM-dd’T’HH:mm:ss’Z'”) gives timezone as IST
  8. SimpleDateFormat producing wrong date time when parsing “YYYY-MM-dd HH:mm”
  9. Java SimpleDateFormat always returning January for Month
  10. Parsing ISO 8601 date format like 2015-06-27T13:16:37.363Z in Java [duplicate]
  11. Parsing a date’s ordinal indicator ( st, nd, rd, th ) in a date-time string
  12. Changing String date format
  13. Java Date year calculation is off by year for two days
  14. Get yesterday’s date using Date [duplicate]
  15. How to parse month full form string using DateFormat in Java?
  16. SimpleDateFormat parse loses timezone [duplicate]
  17. Java Convert GMT/UTC to Local time doesn’t work as expected
  18. How to convert date in to yyyy-MM-dd Format?
  19. Displaying AM and PM in lower case after date formatting
  20. String-Date conversion with nanoseconds
  21. How to convert HH:mm:ss.SSS to milliseconds?
  22. ParseException; must be caught (Try/Catch) (Java) [duplicate]
  23. Why can’t this SimpleDateFormat parse this date string?
  24. SimpleDateFormat giving wrong date instead of error
  25. Java SimpleDateFormat Timezone offset with minute separated by colon
  26. Getting wrong month when using SimpleDateFormat.parse
  27. Simple Date format returns Wrong date intermittently [duplicate]
  28. Why is the month changed to 50 after I added 10 minutes?
  29. java.text.ParseException: Unparseable date: “01:19 PM”
  30. Is SimpleDateFormat in Java work incorrect or I did any mistake? See code sample [duplicate]

Leave a Comment