How can I convert date formats without using deprecated classes?

Converting Date Formats without Deprecated Classes

When working with dates, it's often necessary to convert between different date formats. However, one may encounter issues when attempting to use the SimpleDateFormat class, which has several deprecated methods. To address this, a more modern approach is needed.

Using SimpleDateFormat#format

To convert a date from one format to another without using deprecated classes, utilize SimpleDateFormat#format as follows:

DateFormat originalFormat = new SimpleDateFormat("MMMM dd, yyyy", Locale.ENGLISH);
DateFormat targetFormat = new SimpleDateFormat("yyyyMMdd");
Date date = originalFormat.parse("August 21, 2012");
String formattedDate = targetFormat.format(date);  // 20120821

In this example, we parse a date in "August 21, 2012" format and convert it to a new format of "yyyyMMdd" using SimpleDateFormat#format.

Notes

It's important to note that SimpleDateFormat#parse expects a String, not a Date object. Additionally, when parsing, ensure that the format string matches the exact format of the input string.

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