PatchEdit.getDriver(myPatch.deviceNum,myPatch.driverNum).calculateChecksum(myPatch);
myPatch.getDriver().calculateChecksum(myPatch);
     public void ReassignSelectedPatch()     {         Patch myPatch=((Patch)myModel.PatchList.get(table.getSelectedRow()));         PatchEdit.getDriver(myPatch.deviceNum,myPatch.driverNum).calculateChecksum(myPatch); 	 new ReassignPatchDialog(myPatch); 	 myModel.fireTableDataChanged();     }