How Can I Parse Strings with Varied Date Formats into Java Date Objects?

Parsing Strings with Diverse Formats to Obtain Date Objects in Java

Converting strings to dates with varying formats is a common task faced by Java developers. One approach is to utilize the SimpleDateFormat class.

For instance, if you have a string (fromDate) in the "dd/MM/yyyy" format (e.g., "19/05/2009") and want to transform it into a date object ("yyyy-MM-dd"), follow these steps:

1. Create two SimpleDateFormat objects: one for the user's input format (fromUser) and another for the desired output format (myFormat).
2. Utilize the parse() method of fromUser to convert the input string into a Date object.
3. Employ the format() method of myFormat to reshape the Date object into the desired output format.

The sample code below demonstrates this process:

SimpleDateFormat fromUser = new SimpleDateFormat("dd/MM/yyyy");
SimpleDateFormat myFormat = new SimpleDateFormat("yyyy-MM-dd");

try {
    String reformattedStr = myFormat.format(fromUser.parse(fromDate));
} catch (ParseException e) {
    e.printStackTrace();
}

This comprehensive approach allows you to parse strings with different formats, making it a versatile solution for working with date and time data in Java.

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