Developing International Software (Windows)

http://msdn.microsoft.com/en-us/library/hh529131(v=vs.85).aspx

Code Page Support in Microsoft Windows
http://msdn.microsoft.com/en-us/library/cc194884.aspx

ANSI Code Page for Windows

http://www.mydigitallife.info/ansi-code-page-for-windows-system-locale-with-identifier-constants-and-strings/

JAVA使用的Unicode版本

https://svn.apache.org/repos/asf/lucene/dev/trunk/lucene/JRE_VERSION_MIGRATION.txt

 * Java 1.4, Unicode 3.0
 * Java 5, Unicode 4.0
 * Java 6, Unicode 4.0
 * Java 7, Unicode 6.0

ref:
http://stackoverflow.com/questions/6941229/how-to-identify-programmatically-in-java-which-unicode-version-supported

Character encoding - Wikipedia, the free encyclopedia

http://en.wikipedia.org/wiki/Character_encoding

• With US-ASCII, code unit is 7 bits.
• With UTF-8, code unit is 8 bits.
• With EBCDIC, code unit is 8 bits.
• With UTF-16, code unit is 16 bits.
• With UTF-32, code unit is 32 bits.