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void additem(){ int quantity = Integer.parseInt(JOptionPane.showInputDialog("Enter the Quantity: ")); double total = price * quantity; tAmount1 = String.format ("%.02f", total); model = (DefaultTableModel) myTable.getModel(); model.addRow(new Object[]{ name, price, quantity, tAmount1,}); double totalAmount =0; for (int idx = 0; idx < myTable.getRowCount(); idx++) { totalAmount = totalAmount + Double.parseDouble(myTable.getValueAt(idx, 3).toString()); } tAmount2 = String.format("%.02f", totalAmount); jTextField1.setText ("PHP" + tAmount2); PlaceOrder PlaceOrderFrame = new PlaceOrder(); PlaceOrderFrame.setVisible (true); }
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