Which technology can use a pad reader to get product code dates and other information?

Answer the following statements true (T) or false (F)

1. If no item in a combo box is selected, the value of lstBox.SelectedIndex is 0. 2. The value of cboBox.Text is the currently highlighted item. 3. For a list box named lstBox, the following statement will delete the first occurrence of the value of num from its list. lstBox.Items.RemoveAt(num) 4. For a list box named lstBox, the following statement will delete from its list the item whose index is the value num. lstBox.Items.RemoveAt(num) 5. With a Simple combo box, the list drops down when the user clicks on the arrow and then disappears after a selection is made.

Which of the following lines of code accesses the second element of the first array in a two-dimensional array of integers, numbers, and stores the result in a variable called num?

a)``` num = numbers[1][2]; ``` b)``` num = numbers[0][1]; ``` c)``` num = numbers.getElement(1, 2); ``` d)``` num = numbers.getElement(0, 1); ``` e)``` none of the above are correct ```