code: public Float getFloat(String fieldName) {
  		try {
  			return hasValue(fieldName) ? Float.valueOf(String.valueOf(resultMap.get(fieldName))) : null;
  		} catch (NumberFormatException e) {
  			throw new FqlException("Field '" + fieldName +"' is not a number.", e);
  		}
  	}
docs: Returns the value of the identified field as a Float.
  @param fieldName the name of the field
  @return the value of the field as a Float
  @throws FqlException if the field cannot be expressed as an Float