private void ShowPiecesPositions() { Object columnNames[] = {"Fichas", "X", "Y"}; DefaultTableModel whiteModel = new DefaultTableModel(columnNames, 0); DefaultTableModel blackModel = new DefaultTableModel(columnNames, 0); List<Piece> WhitePieces = gameCtrl.getGame().getWhite().getPiecesAviables(); for (Piece piece : WhitePieces) { Object rowData[] = { piece.getClass().getName(), String.valueOf(piece.getX()), String.valueOf(piece.getY()) }; whiteModel.addRow(rowData); } tableWhite.setModel(whiteModel); List<Piece> BlackPieces = gameCtrl.getGame().getBlack().getPiecesAviables(); for (Piece piece : BlackPieces) { Object rowData[] = { piece.getClass().getName(), String.valueOf(piece.getX()), String.valueOf(piece.getY()) }; blackModel.addRow(rowData); } tableBlack.setModel(blackModel); }