code: public int getInt(int columnIndex) {
  		Object fieldValue = data[columnIndex];
  		if (fieldValue == null) {
  			return 0;
  		}
  		if (fieldValue instanceof Number) {
  			return ((Number) fieldValue).intValue();
  		}
  		throw new DBFException("Unsupported type for Number at column:" + columnIndex + " "
  				+ fieldValue.getClass().getCanonicalName());
  	}
docs: Reads the data as int
  
  @param columnIndex
  columnIndex
  @return the data as int