In this post I will write about formatting dates in Java in different formats (patterns).
The Java classes that I will be using in the examples are:
The class Date represents a specific instant in time, with millisecond precision.
Format is an abstract base class for formatting locale-sensitive information such as dates, messages, and numbers.
SimpleDateFormat is a concrete class for formatting and parsing dates in a locale-sensitive manner. It allows for formatting (date -> text), parsing (text -> date), and normalization. SimpleDateFormat allows you to start by choosing any user-defined patterns for date-time formatting.
A pattern of special characters is used to specify the format of the date. This example demonstrates some of the characters. For a complete listing, see the javadoc documentation for the SimpleDateFormat class.
Note: default locale (which, in the author's case) is Locale.ENGLISH. If the example is run in a different locale, the text (e.g., month names) will not be there: This example formats dates using the same.
Format formatter;
// The year
formatter = new SimpleDateFormat("yy"); // 02
formatter = new SimpleDateFormat("yyyy"); // 2002
// The month
formatter = new SimpleDateFormat("M"); // 1
formatter = new SimpleDateFormat("MM"); // 01
formatter = new SimpleDateFormat("MMM"); // Jan
formatter = new SimpleDateFormat("MMMM"); // January
// The day
formatter = new SimpleDateFormat("d"); // 9
formatter = new SimpleDateFormat("dd"); // 09
// The day in week
formatter = new SimpleDateFormat("E"); // Wed
formatter = new SimpleDateFormat("EEEE"); // Wednesday
// Get today's date
Date date = new Date();
// Some examples
formatter = new SimpleDateFormat("MM/dd/yy");
String s = formatter.format(date);
// 01/09/02
formatter = new SimpleDateFormat("dd-MMM-yy");
s = formatter.format(date);
// 29-Jan-02
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