1 The internationalization of static text, for example, the Chinese display of user name is user name, which is used to display user name.

Among them, static file naming follows: basic name language abbreviation country abbreviation. properties

The classes to be used are

1) import java.util.Locale; //localization
2) import java.util.ResourceBundle; //resource loading

For how to find language abbreviations and national abbreviations, we can find language through the internate option. As shown in the following figure

 

Examples are as follows:

Create two new properties files to store the corresponding internationalized values

The msg_zh_CN.properties file reads as follows

 

The msg_en_US.properties file is as follows

The test code is as follows

String baseName = "com.huitong.test.bundle.msg";
    
        ResourceBundle bundle = ResourceBundle.getBundle(baseName, Locale.CHINA);
        System.out.println(bundle.getString("username"));

 

Internationalization of dynamic content: mainly including digital internationalization, currency internationalization and date internationalization

The main class objects are NumberFormat, SimpleDateFormat

2.1 Currency internationalization, code as follows

2.1.1) Format digital money into strings

        Locale locale = Locale.CHINA;
        double number = 200;
        //Monetary internationalization
        NumberFormat currencyInstance = NumberFormat.getCurrencyInstance(locale);
        
        String result = currencyInstance.format(number );
        
        System.out.println(result);

2.1.2) Format strings into numbers, coded as follows

        Locale locale = Locale.CHINA;
        String strNumber = "￥200.00";
        //Monetary internationalization
        NumberFormat currencyInstance = NumberFormat.getCurrencyInstance(locale);
        
        Number result;
        //        String result = currencyInstance.format(dnumber );

        try {
            result =  currencyInstance.parse(strNumber);
            System.out.println(result.doubleValue());
        } catch (ParseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }        

 

2.2 Digital Internationalization

Format digital money into strings

2.2.1) Number formatted into strings

        Locale locale = Locale.CHINA;
        //Digital internationalization
        NumberFormat numberInstance = NumberFormat.getNumberInstance(locale);
        double num=2000000.15;
        String strnum = numberInstance.format(num);
        System.out.println(strnum);    

Results: 2,000,000.15

2.2.2) Format strings into numbers

        Locale locale = Locale.CHINA;
        //Digital internationalization
        NumberFormat numberInstance = NumberFormat.getNumberInstance(locale);
//        double num=2000000.15;
        String strnum = "2,000,000.15";
        try {
            Number result = numberInstance.parse(strnum);
            System.out.println(result.doubleValue());
        } catch (ParseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

Results: 2000 000.15

 

There are two ways to internationalize the 2.3-day period.

2.3.1) Using DateFormat, the generated formats are fixed, including DateFormat.FULL, DateFormat.LONG, DateFormat.MEDIUM, DateFormat.SHORT.

        int dateStyle = DateFormat.MEDIUM;
        
        int timeStyle = DateFormat.FULL;
        
        Locale aLocale = Locale.CHINA;
        
        DateFormat dateTimeInstance = DateFormat.getDateTimeInstance(dateStyle , timeStyle , aLocale );
        
        String result = dateTimeInstance.format(new Date());
        
        System.out.println(result);

RESULTS: CST at 08:51:28 a.m. from April to November 2017

 

2.3.2) SimpleDateFormat is used for formatting, which can produce a specified format and is more autonomous.

        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        System.out.println(simpleDateFormat.format(new Date()));

Results: 2017-04-11 08:55:20

The formats available are as follows:

• Letter	Date or Time Component	Presentation	Examples
  G	Era designator	Text	AD
  y	Year	Year	1996; 96
  Y	Week year	Year	2009; 09
  M	Month in year (context sensitive)	Month	July; Jul; 07
  L	Month in year (standalone form)	Month	July; Jul; 07
  w	Week in year	Number	27
  W	Week in month	Number	2
  D	Day in year	Number	189
  d	Day in month	Number	10
  F	Day of week in month	Number	2
  E	Day name in week	Text	Tuesday; Tue
  u	Day number of week (1 = Monday, ..., 7 = Sunday)	Number	1
  a	Am/pm marker	Text	PM
  H	Hour in day (0-23)	Number	0
  k	Hour in day (1-24)	Number	24
  K	Hour in am/pm (0-11)	Number	0
  h	Hour in am/pm (1-12)	Number	12
  m	Minute in hour	Number	30
  s	Second in minute	Number	55
  S	Millisecond	Number	978
  z	Time zone	General time zone	Pacific Standard Time; PST; GMT-08:00
  Z	Time zone	RFC 822 time zone	-0800
  X	Time zone	ISO 8601 time zone	-08; -0800; -08:00