public final int readChar() throws IOException {
  if (_readEncoding != null) {
    int ch=_readEncoding.read();
    return ch;
  }
  if (_readLength <= _readOffset) {
    if (!readBuffer())     return -1;
  }
  return _readBuffer[_readOffset++] & 0xff;
}

public final int readChar ( ) throws IOException { if ( _readEncoding != null ) { int ch = _readEncoding . read ( ) ; return ch ; } if ( _readLength <= _readOffset ) { if ( ! readBuffer ( ) ) return - 1 ; } return _readBuffer [ _readOffset ++ ] & 0xff ; }
reads a character from the stream , returning - 1 on end of file .
