MainMenu Relevant Parts

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//Trade Goods Definition
        for (int i = 0; i < baseGoodsPrice.length; i++) {
            //id, price, qty
            tradeGoods[i] = new TradeGoods(i, baseGoodsPrice[i], 0);
        }

        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        //Inventory Settings
        //Line Border
        invPanel.setBorder(BorderFactory.createLineBorder(null));
        //Inventory Label
        invLabel.setText("Inventory");
        //Inventory Table
        invTable.setModel(new DefaultTableModel(
            new Object [][] {
                {tradeGoods[0].getQty(), industries[0]},
                {tradeGoods[1].getQty(), industries[1]},
                {tradeGoods[2].getQty(), industries[2]},
                {tradeGoods[3].getQty(), industries[3]},
                {tradeGoods[4].getQty(), industries[4]},
                {tradeGoods[5].getQty(), industries[5]},
                {tradeGoods[6].getQty(), industries[6]},
                {tradeGoods[7].getQty(), industries[7]},
                {tradeGoods[8].getQty(), industries[8]}
            },
            new String [] {
                "Quantity", "Goods"
            }
        ) {
            boolean[] canEdit = new boolean [] {
                false, false
            };

            public boolean isCellEditable(int rowIndex, int columnIndex) {
                return canEdit [columnIndex];
            }
        });
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