// Use platform default with a fallback to Latin-1 if necessary
String encoding = System.getProperty("file.encoding", "ISO-8859-1");
String lineSeparator = System.getProperty("line.separator", "\r\n");
OutputStream target = System.out;
if (args.length > 0) target = new FileOutputStream(args[0]);
if (args.length > 1) encoding = args[1];
OutputStreamWriter out = null;
try {
out = new OutputStreamWriter(target, encoding);
}
catch (UnsupportedEncodingException ex) {
// use platform default encoding
out = new OutputStreamWriter(target);
}
try {
for (int i = Character.MIN_VALUE; i <= Character.MAX_VALUE; i++) {
// Skip undefined code points; these are not characters
if (!Character.isDefined(i)) continue;
char c = (char) i;
// Surrogates are not full characters so skip them;
// this requires Java 5
if (Character.isHighSurrogate(c) || Character.isLowSurrogate(c)) continue;
out.write(i + ":\t" + c + lineSeparator);
}
}
finally {
out.close();
}
