Objective 10.2: Match the following features of the Java 2 platform with descriptions of their functionality, purpose or typical uses: Properties, Locale, ResourceBundle, Unicode, java.text package, InputStreamReader and OutputStreamWriter

• java.util.Properties – configuration data, can be loaded/saved to/from a stream, can be locale specific.
• java.util.Locale – a geographic/political/cultural region, simply represents it as an identifier.
• java.util.ResourceBundle – all the locale specific details bundled together per locale, you can write a class that inherits from ResourceBundle or create file with .properties extension, uses a _lang_COUNTRY_VARIANT, eg MyResourses_en_ENG_UNIX or MyResources_ge_CH, ListResourceBundle – backed with a class to deal with resources as a list, and PropertyResourceBundle – deal with resources in properties files.
• Formatting – classes that inherit from java.text.Format to parse/format, eg: DateFormat, MessageFormat and NumberFormat
• Locale-Specific String Classes – Collator = string comparison, CollationElementIterator = iterate through international strings, CollationKey = Collator key, BreakIterator = find line breaks, sentences, etc, CharacterIterator = bi-direction Iterator through Strings.
• UNICODE 2.0 (2.1) – two byte chars, 16 bits.
• java.io.InputStreamReader – bridge to convert a stream of non-Unicode bytes to Unicode chars. Eg: InputStreamReader r = new InputStreamReader( new FileInputStream(“test.txt”),”UTF8”);
• java.io.OutputStreamWriter – bridge to convert a string of Unicode chars to non-Unicode bytes. Eg: OutputStreamWriter osw = new OutputStreamWriter(new FileOutputStream("test.txt"), "UTF8")); osw.write(str);