[Java Study Notes] Localization

Author: gnuhpc
Source: http://www.cnblogs.com/gnuhpc/

First, we will introduce several terms:

• I18n:Is internationalization, international, because the first letter "I" and the end letter "N" has 18 characters, so i18n for short. internationalization refers to the design measures taken to adapt applications to changes in different languages and regions without systematic changes.
• L10n:It is localization. Because there are 10 letters between the first letter "L" and the last letter "N", l10n for short. localization refers to the process of adding local specialized components and translated text to enable application software to be used in a specific language environment or region.
• Locale:In short, it is a sign of a special combination of languages and regions.

1. Localization of Text

Import java. util. resourcebundle;
Import java. util. locale;
Public class i18ndemo1 {
Static public void main (string Arg []) {
Locale LOC;
Resourcebundle bundle;
/* File:Demo1_en_us.properties*/
Loc = new locale ("en", "us ");
Bundle = resourcebundle. getbundle ("Demo1", Loc );
System. Out. println (bundle. getstring ("greeting "));
System. Out. println (bundle. getstring ("Question "));
System. Out. println (bundle. getstring ("farewell "));
System. Out. println ("--------------------------");
/* File:Demo1_en_us_tx.properties*/
Loc = new locale ("En "," us "," TX");
Bundle = resourcebundle. getbundle ("Demo1", Loc );
System. Out. println (bundle. getstring ("greeting "));
System. Out. println (bundle. getstring ("Question "));
System. Out. println (bundle. getstring ("farewell "));
}
}

The local configuration file is as follows:

Demo1_en_us.properties:

Greeting = hello.
Farewell = goodbye.
Question = Are you ready?

Demo1_en_us_tx.properties:

Greeting = howdy.
Farewell = S' long.
Question = is your gun loaded?

Naming rules for international resource files require that resource names be named in the following ways: <Resource Name >_< language code >_< country code>. Properties
The language code and country code are optional.

2. Digital Localization:

Import java. util. locale;
Import java. util. date;
Import java. Text. numberformat;
Import java. Text. dateformat;
Public class i18ndemo2 {
Static public void main (string Arg []) {
I18ndemo2 demo = new i18ndemo2 ();
Demo. showloc (New locale ("en", "us "));
System. Out. println ("-----------");
Demo. showloc (New locale ("FR", "FR "));
System. Out. println ("-----------");
Demo. showloc (New locale ("de", "de "));
}
Public void showloc (locale LOC ){
Numberformat nfmt;
Dateformat dfmt;
System. Out. println (LOC );
Nfmt = numberformat. getnumberinstance (LOC );
System. Out. println (nfmt.format (123456 ));
System. Out. println (nfmt.format (123456.78 ));
Nfmt = numberformat. getcurrencyinstance (LOC );
System. Out. println (nfmt.format (123456.78 ));
Nfmt = numberformat. getpercentinstance (LOC );
System. Out. println (nfmt. Format (. 78 ));
Dfmt = dateformat. getdateinstance (dateformat. Default, Loc );
System. Out. println (dfmt. Format (new date ()));
}
}

3. Check what localization is supported:

Import java. util. locale;
Import java. Text. numberformat;
Public class i18ndemo3 {
Static public void main (string Arg []) {
Locale loc [] = numberformat. getavailablelocales ();
For (INT I = 0; I <LOC. length; I ++)
System. Out. println (loc [I]);
}
}

Author: gnuhpc
Source: http://www.cnblogs.com/gnuhpc/