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How to Convert a Java Date from yyyy-mm-dd to mm-dd-yyyy?

Patricia Arquette
Release: 2024-11-01 00:40:01
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How to Convert a Java Date from yyyy-mm-dd to mm-dd-yyyy?

Date Format Conversion from yyyy-mm-dd to mm-dd-yyyy

Converting a java.util.Date from the yyyy-mm-dd format to mm-dd-yyyy requires utilizing date formatters. The SimpleDateFormat class provides a convenient way to format and parse date objects.

However, it's important to note that Date itself is a container for milliseconds since the Unix epoch, without any inherent format. The formatting only affects the string representation of the date.

Using SimpleDateFormat (Java 7 and higher)

The following example demonstrates how to convert a Date using SimpleDateFormat:

<code class="java">Date myDate = new Date();
SimpleDateFormat yyyymmddFormat = new SimpleDateFormat("yyyy-MM-dd"); // Input format
SimpleDateFormat mmddyyyyFormat = new SimpleDateFormat("MM-dd-yyyy"); // Output format

// Format the date to the desired format
String formattedDate = mmddyyyyFormat.format(myDate);</code>
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Using DateTimeFormatter (Java 8 and higher)

With Java 8, the DateTimeFormatter class provides a simpler and more modern API for formatting dates. Here's an example using DateTimeFormatter:

<code class="java">LocalDateTime ldt = LocalDateTime.now();
String formattedDate = DateTimeFormatter.ofPattern("MM-dd-yyyy", Locale.ENGLISH).format(ldt);</code>
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Additional Notes:

  • The format pattern strings must match the corresponding date format. Double-check the patterns used in SimpleDateFormat or DateTimeFormatter.
  • The converted string can be parsed back into a Date using the same SimpleDateFormat or DateTimeFormatter with the corresponding format pattern.

By applying these techniques, you can effectively convert a java.util.Date from yyyy-mm-dd to mm-dd-yyyy or any other desired format, ensuring proper date representation in your applications.

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