Returning a date format from an unknown format of date string in java [duplicate]

This question already has answers here: Closed 11 years ago.

Possible Duplicate:

Parse any date in Java

Suppose we have a string of date in a format (unknown to the user). Examples of acceptable dates that you can receive from a user:

• yyyy-MM-dd/yy-MM-dd
• yyyy/MM/dd/yy/MM/dd
• dd/MM/yyyy/dd/MM/yy
• MM/dd/yyyy/MM/dd/yy`

Is there a libr开发者_StackOverflowary that accept a date in a string and returns a date format that can be used by SimpleDateFormat or Joda Time?

Thanks

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As a simple solution: I will apply each date format on the provided input to get a Date object , then I print the Date object with the same date format. If the input and the output for a date format are the same the date format is a candidate.