正确解析Unicode编码和Java char
正确理解Unicode百万字符,与JAVA CHAR,JAVA STRING

http://www.javaeye.com/topic/428763
http://www.iteye.com/topic/311583

http://unicode.org/

http://download.oracle.com/javase/7/docs/api/java/lang/Character.html
(Character information is based on the Unicode Standard, version 6.0.0.)

http://download.oracle.com/javase/6/docs/api/java/lang/Character.html