protected void appendQueryParameter(StringBuilder queryBuf,String paramName,String paramValue) throws UnsupportedEncodingException {
  queryBuf.append(queryBuf.length() != 0 ? '&' : '?');
  queryBuf.append(paramName);
  queryBuf.append("=");
  queryBuf.append(paramValue);
}

protected void appendQueryParameter ( StringBuilder queryBuf , String paramName , String paramValue ) throws UnsupportedEncodingException { queryBuf . append ( queryBuf . length ( ) != 0 ? '&' : '?' ) ; queryBuf . append ( paramName ) ; queryBuf . append ( "=" ) ; queryBuf . append ( paramValue ) ; }
appends specified query ( parameter , value ) to provided query url buffer .
