Is there a date format to display the day of the week in java

Question

I know of date formats such as   yyyy-mm-dd  -which displays date in format 2011-02-26  yyyy-MMM-dd -which displays date in format 2011-FEB-26  to be used in eg   SimpleDateFormat formatter   new SimpleDateFormat                   yyyy MMM dd       I want a format which would help me display the day of the week like 2011-02-MON or anything   I just want the day of the week to be displayed in characters with the month and the year   Can you tell me of a format like this

User · Answer

Use  E   See the section on Date and Time Patterns   JavaDocs for SimpleDateFormat

User · Answer

tl dr  LocalDate of  2018   Month JANUARY   23             format  DateTimeFormatter ofPattern     uuuu-MM-EEE      Locale US        java time  The modern approach uses the java time classes   LocalDate ld   LocalDate of  2018   Month JANUARY   23       Note how we specify a Locale such as Locale CANADA FRENCH to determine the human language used to translate the name of the day    DateTimeFormatter f   DateTimeFormatter ofPattern     uuuu-MM-EEE      Locale US     String output   ld format  f       ISO 8601  By the way  you may be interested in the standard ISO 8601 week numbering scheme  yyyy-Www-d       2018-W01-2   Week   1 has the first Thursday of the calendar-year  Week starts on a Monday  A year has either 52 or 53 weeks  The last first few days of a calendar-year may land in the next previous week-based-year    The single digit on the end is day-of-week  1-7 for Monday-Sunday   Add the ThreeTen-Extra library class to your project for the YearWeek class      About java time  The java time framework is built into Java 8 and later  These classes supplant the troublesome old legacy date-time classes such as java util Date  Calendar   amp  SimpleDateFormat   The Joda-Time project  now in maintenance mode  advises migration to the java time classes   To learn more  see the Oracle Tutorial  And search Stack Overflow for many examples and explanations  Specification is JSR 310   Where to obtain the java time classes     Java SE 8  Java SE 9  and later   Built-in   Part of the standard Java API with a bundled implementation  Java 9 adds some minor features and fixes   Java SE 6 and Java SE 7   Much of the java time functionality is back-ported to Java 6  amp  7 in ThreeTen-Backport   Android   Later versions of Android bundle implementations of the java time classes  For earlier Android  the ThreeTenABP project adapts ThreeTen-Backport  mentioned above   See How to use ThreeTenABP        The ThreeTen-Extra project extends java time with additional classes  This project is a proving ground for possible future additions to java time  You may find some useful classes here such as Interval  YearWeek  YearQuarter  and more

User · Answer

Yep -  E  does the trick  http   download oracle com javase 6 docs api java text SimpleDateFormat html  Date date   new Date    DateFormat df   new SimpleDateFormat  yyyy-MM-E    System out println df format date

User · Answer

This should display  Tue    new SimpleDateFormat  EEE   format new Date       This should display  Tuesday    new SimpleDateFormat  EEEE   format new Date       This should display  T    new SimpleDateFormat  EEEEE   format new Date       So your specific example would be   new SimpleDateFormat  yyyy-MM-EEE   format new Date

User · Answer

I know the question is about getting the day of week as string  e g  the short name   but for anybody who is looking for the numeric day of week  as I was   you can use the new  u  format string  supported since Java 7  For example   new SimpleDateFormat  u   format new Date       returns today s day-of-week index  namely  1   Monday  2   Tuesday       7   Sunday

User · Answer

SimpleDateFormat sdf new SimpleDateFormat  EEE      EEE stands for day of week for example Thursday is displayed as Thu

[java] Is there a date format to display the day of the week in java?

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