private void createComponenten()
    {
        Product product = new Product("Appel", "Fruit");
        String temp[];
        cbType = new JComboBox();
        taWinkellijst = new JTextArea(2,30);
        btnSave = new JButton("Save");
        btnClear = new JButton("Clear");
        btnAdd = new JButton("Add");
        tfItem = new JTextField(10);
        taWinkellijst.setEnabled(true);
        temp = product.getTypes();
        for (int i = 0; i< temp.length; i++)
        {

             cbType.addItem(temp[i]);
        }

       cbType.addItem("Fuit");
       cbType.addItem("Diepvries");

    }