java IO

System.out.println(Charset.defaultCharset().name());SortedMap<String,Charset> charsetSortedMap = Charset.availableCharsets();Iterator<Entry<String, Charset>> iterator = charsetSortedMap.entrySet().iterator();while(iterator.hasNext()){Entry<String, Charset> entry = iterator.next();System.out.println(entry.getKey() + "-->" + entry.getValue());}Charset latin = Charset.forName("iso-8859-1");CharsetEncoder encoder = latin.newEncoder();CharsetDecoder decoder = latin.newDecoder();CharBuffer charBuffer = CharBuffer.wrap("你好");ByteBuffer byteBuffer = encoder.encode(charBuffer);System.out.println(decoder.decode(byteBuffer));