Leniency : Date Format « Data Type « Java Tutorial

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Java Tutorial » Data Type » Date Format

2. 41. 9. Leniency

Leniency refers to whether or not a strict rule will be applied at parsing. If a DateFormat object is lenient, it will accept Jan 32, 2005. In fact, it will take the liberty of converting it to Feb 1, 2006. By default, a DateFormat object is lenient.


import java.text.DateFormat;

import java.text.ParseException;

import java.util.Date;



public class MainClass {

  public static void main(String[] args) {

    DateFormat shortDf = DateFormat.getDateInstance(DateFormat.SHORT);



    DateFormat mediumDf = DateFormat.getDateInstance(DateFormat.MEDIUM);

    DateFormat longDf = DateFormat.getDateInstance(DateFormat.LONG);

    DateFormat fullDf = DateFormat.getDateInstance(DateFormat.FULL);

    System.out.println(shortDf.format(new Date()));

    System.out.println(mediumDf.format(new Date()));

    System.out.println(longDf.format(new Date()));

    System.out.println(fullDf.format(new Date()));



    // parsing

    try {

      Date date = shortDf.parse("Jan 32, 2005");

    } catch (ParseException e) {

    }

  }

}

1/26/07
Jan 26, 2007
January 26, 2007
Friday, January 26, 2007

2. 41. Date Format
	2. 41. 1.	Date Parsing and Formatting with DateFormat
	2. 41. 2.	Parsing the Time Using a Custom Format
	2. 41. 3.	Parse with a custom format
	2. 41. 4.	Parse with a default format
	2. 41. 5.	Parse string date value input with SimpleDateFormat('dd-MMM-yy')
	2. 41. 6.	Parse a date and time
	2. 41. 7.	Parse string date value input with SimpleDateFormat('E, dd MMM yyyy HH:mm:ss Z')
	2. 41. 8.	Parse string date value with default format: DateFormat.getDateInstance(DateFormat.DEFAULT)
	2. 41. 9.	Leniency
	2. 41. 10.	Formatting String Symbols for SimpleDateFormat
	2. 41. 11.	SimpleDateFormat: hh:mm:ss, dd MMM yyyy hh:mm:ss zzz, E MMM dd yyyy
	2. 41. 12.	Simply format a date as YYYYMMDD
	2. 41. 13.	Express a duration in term of HH:MM:SS
	2. 41. 14.	Date Format with SimpleDateFormat
	2. 41. 15.	Demonstrate date formats with different DateFormat constants
	2. 41. 16.	Demonstrate time formats.
	2. 41. 17.	DateFormat.getDateTimeInstance(DateFormat.FULL,DateFormat.MEDIUM)
	2. 41. 18.	print out the current date and time
	2. 41. 19.	Date Era change
	2. 41. 20.	Format Date with System.out.format
	2. 41. 21.	SimpleDateFormat
	2. 41. 22.	Formatting Dates and Times
	2. 41. 23.	Four different date formats for four countries: US, UK, GERMANY, FRANCE
	2. 41. 24.	Various Date format
	2. 41. 25.	Display date with day name in a short format
	2. 41. 26.	Display date with a short day and month name
	2. 41. 27.	Format a date into dd/mm/yyyy
	2. 41. 28.	Format current date and time with the SimpleDateFormat: dd/MM/yyyy
	2. 41. 29.	Format current date and time with the SimpleDateFormat: HH:mm:ss
	2. 41. 30.	Formatting Symbols for SimpleDateFormat
	2. 41. 31.	Formatting the Time Using a Custom Format
	2. 41. 32.	Change date formatting symbols
	2. 41. 33.	Get a List of Short Month Names
	2. 41. 34.	Get a List of Weekday Names
	2. 41. 35.	Get a List of Short Weekday Names
	2. 41. 36.	Time in 12-hour format
	2. 41. 37.	Time in 24-hour format
	2. 41. 38.	Date and time with month
	2. 41. 39.	Date and time with day and month fully spelled-out
	2. 41. 40.	Output current time: %tc
	2. 41. 41.	Formatter that caches formatted date information
	2. 41. 42.	RFC date format
	2. 41. 43.	A formatter that formats dates to show the elapsed time relative to some base date.

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