Validating date format in java
During parsing the date-time value is converted to the chronology before it is returned.The method returns a new formatter that overrides the zone.Copyright © 1993, 2016, Oracle and/or its affiliates. If i have someone tpying in a date into a text box how do I validate that the date format entered is MM/DD/YY in my set method?Number: If the count of letters is one, then the value is output using the minimum number of digits and without padding.Otherwise, the count of digits is used as the width of the output field, with the value zero-padded as necessary.The function has been improved now so that the day, month and year values are checked to ensure that they're in the right ball-bark (ie. Also the year must be between 1902 and the current year.
That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
method returns a new formatter that overrides the chronology.
If overridden, the date-time value is converted to the chronology before formatting.
The expressions use a pre-defined class is returned which enables the form to be submitted.
This routine DOES NOT check that the date or time input values are valid, just that they match the required format (d/m/y and h:m). Once you're in control of the input format, it's a lot easier to check that the values are actually valid.