Reading the API of JOptionPane in the most parameters showInputDialog (see copy below), at the end I
It is up to the UI to decide how best to represent the selectionValues, but usually a JComboBox, JList,
or JTextField will be used.
Now in a JCombobox you are sure only one value is selected, in a list you can select more.
How can I make sure :
that I have a combobox,
or in case I will get a list, that only one value can be selected?
General idea is : how to make sure there is only one selection possible?
Please add codesnippit,
public static Object showInputDialog(Component parentComponent,
Prompts the user for input in a blocking dialog where the initial selection, possible selections, and
all other options can be specified. The user will able to choose from selectionValues, where null implies
the user can input whatever they wish, usually by means of a JTextField. initialSelectionValue is the
initial value to prompt the user with. It is up to the UI to decide how best to represent the selectionValues,
but usually a JComboBox, JList, or JTextField will be used.
An example will help me very much. Thanks.