import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.nio.charset.CharsetEncoder;
public class Main {
public static void main(String[] argv) throws Exception {
Charset charset = Charset.forName("ISO-8859-1");
CharsetDecoder decoder = charset.newDecoder();
CharsetEncoder encoder = charset.newEncoder();
ByteBuffer bbuf = ByteBuffer.allocateDirect(1024);
CharBuffer cbuf = CharBuffer.allocate(1024);
encoder.encode(cbuf, bbuf, false);
bbuf.flip();
decoder.decode(bbuf, cbuf, false);
cbuf.flip();
}
}