This document discusses internationalization and localization. Internationalization is the process of making applications adaptable to different languages and regions, while localization is the process of translating an application for a specific locale. Reasons for internationalization include differences in language, currency, and date/time formats across locales. The document outlines internationalization elements like captions, dates, numbers, percentages that require formatting. It also discusses the Unicode standard, use of properties files and ResourceBundles for localization, Locale class for specifying locales, and MessageFormat for variable text formatting.

1. Internationalization

2. What is internationalization?
the process of creating applications which can adapt and adjust to
various countries, languages, regions.
I18N

3. What is localization?
the process of adapting an application for a specific language or
country by addition of locale-specific components and translation of text.
L10N

4. Why need internationalization?

5. Why need internationalization?
Difference:
- Language
- Currency
- Date and time

6. Alternatives to solve the Problem?
Develop product
Translate product

7. Benefits of I18N and L10N
No hard coding
No recompilation
Localized quickly

8. Unicode
provide a unique number
for every character
irrespective of platform,
program or language.
Unicode is a 16-bit
character encoding

9. Significance of Unicode
Java platform uses Unicode as its native character encoding.
Uxxxx :
X : hexadecimal digit

10. Internationalization Process

11. Properties file
MessageBundle.properties
MessageBundle_fr_FR.properties
MessageBundle_de_DE.properties

12. Locale
Constructors:
public Locale(String language, String country)
public Locale(String language)
Locale usLocale = new Locale(“en”,”us”)

13. Methods
public static Locale getDefault()
public final String getDisplayCountry()
public final String getDisplayLanguage()

14. Resource Bundle
Localized or translated into different languages
Handled for multiple locales at the same time
Supported for more locales later

15. Using Resource Bundle
ResourceBundle getBundle(String, Locale)

16. Fetching the text from Resource Bundle
public final String getString(String key)

17. Fetching the text from Resource Bundle
public abstract Enumeration <String> getKeys()

18. Internationalization Elements

19. Component Captions
Caption text
Dates
Numerals
Percentage

20. Need for Formatting?
12345678
US 12,345,678
EU 12.345.678

21. NumberFormat class
getNumberInstance()
getCurrencyInstance()
getPercentInstance()
format()

22. DateFormat class
DateFormat getDateInstance (style, locale)

23. Formatting Message

24. It is not always possible to create a
grammatically correct sentences with
concatenation of phrases and variables.

25. So we need MessageFormat.

26. Steps for MessageFormat.
Identify variables
Create template
Create object array
Create instance
Apply and Format