Esempio n. 1
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  @Override
  public void redo() throws CannotUndoException {
    super.redo();

    new DeleteColumnC(deletedVariables);
    unselectAll();
  }
Esempio n. 2
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 @Override
 public void undo() throws CannotRedoException {
   super.undo();
   for (Variable var : deletedVariables) {
     model.addVariable(var);
   }
 }