Java Utililty Methods Charset Create

final CharsetEncoder encoder;
if (Charset.isSupported(ENCODING)) {
    encoder = Charset.forName(ENCODING).newEncoder();
} else {
    encoder = Charset.defaultCharset().newEncoder();
return encoder;

return getCharset(encoding).newEncoder();

Charset charset = null;
String charsetName = getEncodingName(htmlData);
if (charsetName != null) {
    try {
        charset = Charset.forName(charsetName);
    } catch (Exception e) {
        System.err.println("Charset encoding " + charsetName + " not found");
        charset = null;
...

String encoding = inWriter.getEncoding();
try {
    encoding = Charset.forName(encoding).name();
} catch (Exception e) {
return encoding;

Pattern xml = Pattern.compile("^\\s*<\\?xml\\s+[^>]*\\s*encoding\\s*=\\s*(\"[^\"]*\")",
        Pattern.DOTALL | Pattern.MULTILINE);
Matcher xmlMatcher = xml.matcher(text);
if (xmlMatcher.find())
    return getEncoding(xmlMatcher);
Pattern html = Pattern.compile(
        "^\\s*<(html|HTML).*<(meta|META)\\s+[^>]*\\s*(charset|CHARSET)\\s*=\\s*(\"[^\"]*\"|[^\"\\s]*)",
        Pattern.DOTALL | Pattern.MULTILINE);
...

byte[] bs = readFile(file, 150);
String encoding = "utf-8";
boolean findEncoding = false;
Map chars = Charset.availableCharsets();
Set keys = chars.keySet();
Iterator iterator = keys.iterator();
Pattern pattern = Pattern.compile("encoding=\"([^\"]*?)\"");
while (iterator.hasNext()) {
...

int i = options.lastIndexOf("-encoding");
return (i >= 0) ? Charset.forName(options.get(i + 1)) : null;

if (encodings == null) {
    SortedMap<String, Charset> m = Charset.availableCharsets();
    Set<String> keySet = m.keySet();
    encodings = keySet.toArray(new String[keySet.size()]);
return encodings;

List returnValue = new ArrayList();
Map map = Charset.availableCharsets();
Iterator iter = map.keySet().iterator();
returnValue.add(UTF_8_Y);
while (iter.hasNext())
    returnValue.add(iter.next());
return (String[]) returnValue.toArray(new String[returnValue.size()]);