code: public int getDwgSectionOffset( String key ) {
          int offset = 0;
          for( int i = 0; i < dwgSectionOffsets.size(); i++ ) {
              DwgSectionOffset dso = (DwgSectionOffset) dwgSectionOffsets.get(i);
              String ikey = dso.getKey();
              if (key.equals(ikey)) {
                  offset = dso.getSeek();
                  break;
              }
          }
          return offset;
      }
docs: Returns the offset of DWG section given by its key
  
  @param key Define the DWG section
  @return int Offset of the section in the DWG file