JAVA EE: java.text.DateFormat class - How to format the date using Date formatter in java

Thursday, 10 January 2019

java.text.DateFormat class - How to format the date using Date formatter in java

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DateFormatDemo1.java

import java.text.DateFormat;

import java.util.Date;

public class DateFormatDemo1

{

    public static void main(String[] args)

    {

        Date currentDate = new Date();

        System.out.println("Current Date = " + currentDate);

        /*

         * Returns:

         * 

         * a date formatter.

         */

        DateFormat dateFormat = DateFormat.getDateInstance();

        /*

         * Parameters:

         * 

         * date - the time value to be formatted into a time string.

         * 

         * Returns:

         * 

         * the formatted date/time string.

         */

        String dateToStr = dateFormat.format(currentDate);

        System.out.println("Formatted Date = " + dateToStr);

    }

}

Output:

en_US

December 27, 2018

DateFormatDemo2.java

import java.text.DateFormat;

import java.util.Date;

public class DateFormatDemo2

{

    public static void main(String[] args)

    {

        Date date = new Date();

        /*

         * Parameters:

         * 

         * style - the given formatting style. For example, SHORT for

         * "M/d/yy" in the US locale.

         * 

         * Returns:

         * 

         * a date formatter.

         */

        DateFormat dateFormat = DateFormat.getDateInstance(DateFormat.DEFAULT);

        String strDate = dateFormat.format(date);

        System.out.println("DEFAULT format = "+strDate);

        dateFormat = DateFormat.getDateInstance(DateFormat.FULL);

        strDate = dateFormat.format(date);

        System.out.println("FULL format = "+strDate);

        dateFormat = DateFormat.getDateInstance(DateFormat.LONG);

        strDate = dateFormat.format(date);

        System.out.println("LONG format = "+strDate);

        dateFormat = DateFormat.getDateInstance(DateFormat.SHORT);

        strDate = dateFormat.format(date);

        System.out.println("SHORT format = "+strDate);

    }

}

Output:

DEFAULT format = Dec 27, 2018

FULL format = Thursday, December 27, 2018

LONG format = December 27, 2018

SHORT format = 12/27/18

DateFormatDemo3.java

import java.text.DateFormat;

import java.util.Date;

import java.util.Locale;

public class DateFormatDemo3

{

    public static void main(String[] args)

    {

        Locale locale = Locale.getDefault();

        System.out.println(locale);

        /*

         * Parameters:

         * 

         * style - the given formatting style. For example, SHORT for

         * "M/d/yy" in the US locale. aLocale - the given locale.

         * 

         * aLocale the given locale.

         * 

         * Returns:

         * 

         * a date formatter.

         */

        DateFormat dateFormat = DateFormat.getDateInstance(DateFormat.LONG,

                locale);

        String strDate = dateFormat.format(new Date());

        System.out.println(strDate);

    }

}