Session 8 : internationalization - Giáo trình Bách Khoa Aptech

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  • 1. Slide 1 of 30 Internationalization
  • 2. Slide 2 of 30 Objectives  Introduction to Internationalization  Internationalization Process  Internationalization Elements
  • 3. Slide 3 of 30  Need of Internationalization – Not all countries across the world speak or understand English language – Symbols for currency vary across countries – Date and Time are represented differently in some countries – Spelling also varies amongst some countries  Alternatives to Solve the Problem – Develop the entire product in the desired language – Translate the entire product in the desired language
  • 4. Slide 4 of 30  The process of creating applications which can adapt and adjust to various countries, languages and regions is known as internationalization. The word “internationalization” is often abbreviated as I18N.  The process of adapting an application for a specific language or country by addition of locale-specific components and translation of text is referred to as localization. The word “localization” is often abbreviated as L10N.
  • 5. Slide 5 of 30  The same executable application can run worldwide  Textual elements such as labels and messages for GUI are not hard-code.  Support for new language does not require recompilation  Culturally dependent data, such as date and currency appear formats that conform.  Internationalized programs are localized quickly
  • 6. Slide 6 of 30  Numbers: The NumberFormat class is used to create locale-specific formats for – Numbers – Currencies – Percentages  Methods
  • 7. Slide 7 of 30  Date and Time: The date and time format should conform to the conventions of the end user’s locale.  The method below is used to get the DateFormat: – getDateInstance(style, locale)
  • 8. Slide 8 of 30  Unicode provides a unique number for every character irrespective of platform, program or language. Unicode is a 16-bit character encoding system that supports the world’s major languages. The primitive data type char in Java is based on Unicode encoding.
  • 9. Slide 9 of 30 1.Creating the Properties File 2.Defining the Locale – Locale(String language, String country) – Locale(String language) 1.Using the ResourceBundle class 2.Fetching the Text from Resource Bundle
  • 10. Slide 10 of 30 I18N & Formatting Tag Library Slide 10 of 9 I18N & Formatting Tag Library setLocale bundle setBundle message
  • 11. Slide 11 of 30 I18N & Formatting Tag Library <%@ taglib uri = "http://java.sun.com/jsp/jstl/fmt" prefix = “fmt" %> <fmt:setLocale value=“lc_CC” scope=“page | request | session | application” /> <fmt:bundle basename=“basename”> Body Content </fmt:bundle> <fmt:setBundle basename=“basename” var=“varName” scope=“page | request | session | application” /> <fmt:message key=“messageKey”> <fmt:param /> Slide 11 of 9
  • 12. Slide 12 of 30 I18N & Formatting Tag Library – <fmt:formatNumber value=“numValue” [type=“{number|currency|percent}”] [maxIntegerDigits=“maxIntegerDigits”] [minIntegerDigits=“minIntegerDigits”] [maxFractionDigits=“maxFractionDigits”] [minFractionDigits=“minFractionDigits”] [var=“varName”] [scope=“{page|request|session|application}”] /> – <fmt:formatDate value=“date” [type=“{time|date|both}”] [dateStyle=“{default|short|medium|long|full}”] [timeStyle=“{default|short|medium|long|full}”] [var=“varName”] [timeZone=“timeZone”] [scope=“{page|request|session|application}”] [pattern=“dd-MM-yy”] /> Slide 12 of 9
  • 13. Slide 13 of 30 Date – Time Pattern Slide 13 of 9
  • 14. Slide 14 of 30