native2ascii - Native-to-ASCII Converter Converts a file with native-encoded characters (characters which are non-Latin 1 and non-Unicode) to one with Unicode-encoded characters. SYNOPSIS native2ascii [options] [inputfile [outputfile]]
DESCRipTION The Java compiler and other Java tools can only PRocess files which contain Latin-1 and/or Unicode-encoded (/udddd notation) characters. native2ascii converts files which contain other character encodings into files containing Latin-1 and/or Unicode-encoded charaters. If outputfile is omitted, standard output is used for output. If, in addition, inputfile is omitted, standard input is used for input.
OPTIONS -reverse Perform the reverse Operation: convert a file with Latin-1 and/or Unicode encoded characters to one with native-encoded characters.
-encoding encoding_name Specify the encoding name which is used by the conversion procedure. The default encoding is taken from System property file.encoding. The encoding_name string must be taken from the first column of the table of supported encodings in the Supported Encodings document.
-Joption Pass option to the Java virtual machine, where option is one of the options described on the reference page for the java application launcher. For example, -J-Xms48m sets the startup memory to 48 megabytes.
For chinese use normally use: GBK, Big5. In Sun's encoding document, it is mentioned this conversion need: lib/rt.jar or lib/charsets.jar. These two file only can file Sun's JRE package. They cant find in Sun's JDK package.