SimpleDateFormat使用自定义格式字符串格式化日期对象

/* from 
n  o  w  j  a  v  a . c o m*/

import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.Locale;


public class LocalizationExamples {


    public static void main(String[] args) {


        /**

         * Run this, and try to guess the pattern that generated every output!

         */

        SimpleDateFormat simpleDateFormat = null;

        String dateAsString = null;


        System.out.println( "Date 1:\n" );

        simpleDateFormat = new SimpleDateFormat("dd/MM/yy");
        /* from 
        N o w J a v a . c o m*/

        dateAsString = simpleDateFormat.format(new Date());

        System.out.println(dateAsString);


        System.out.println( "Date 2:\n" );

        simpleDateFormat = new SimpleDateFormat("yyyy.MM.dd G 'at' HH:mm:ss z");

        dateAsString = simpleDateFormat.format(new Date());

        System.out.println(dateAsString);


        System.out.println( "Date 3:\n" );

        simpleDateFormat = new SimpleDateFormat("EEE, MMM d, ''yy");

        dateAsString = simpleDateFormat.format(new Date());

        System.out.println(dateAsString);


        System.out.println( "Date 4:\n" );

        simpleDateFormat = new SimpleDateFormat("h:mm a");

        dateAsString = simpleDateFormat.format(new Date());

        System.out.println(dateAsString);


        System.out.println( "Date 5:\n" );

        simpleDateFormat = new SimpleDateFormat("hh 'o''clock' a, zzzz");

        dateAsString = simpleDateFormat.format(new Date());

        System.out.println(dateAsString);


        System.out.println( "Date 6:\n" );

        simpleDateFormat = new SimpleDateFormat("K:mm a, z");

        dateAsString = simpleDateFormat.format(new Date());

        System.out.println(dateAsString);


        System.out.println( "Date 7:\n" );

        simpleDateFormat = new SimpleDateFormat("yyyyy.MMMMM.dd GGG hh:mm aaa");

        dateAsString = simpleDateFormat.format(new Date());

        System.out.println(dateAsString);


        System.out.println( "Date 8:\n" );

        simpleDateFormat = new SimpleDateFormat("EEE, d MMM yyyy HH:mm:ss Z");

        dateAsString = simpleDateFormat.format(new Date());

        System.out.println(dateAsString);


        System.out.println( "Date 9:\n" );

        simpleDateFormat = new SimpleDateFormat("yyMMddHHmmssZ");

        dateAsString = simpleDateFormat.format(new Date());

        System.out.println(dateAsString);


        System.out.println( "Date 10:\n" );

        simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");

        dateAsString = simpleDateFormat.format(new Date());

        System.out.println(dateAsString);


        System.out.println( "Date 11:\n" );

        simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSXXX");

        dateAsString = simpleDateFormat.format(