Question

Following the example here http://www.java2s.com/Code/JavaAPI/javax.swing/JOptionPaneshowInputDialogComponentpObjectmStringtintmIconiObjectoObjecti.htm

is it possible to somehow make the default jcombobox editable? There doesn’t seem to be any instantiation of JCombobox in the JOptionPane, is it possible to extend and override the default JCombobox used by JOptionPane?

Answer 1

You can do this with showMessageDialog(), by creating a JComboBox and transforming to editable with setEditable().

Example:

String[] list = {"A", "B", "C"};
JComboBox jcb = new JComboBox(list);
jcb.setEditable(true);
JOptionPane.showMessageDialog( null, jcb, "select or type a value", JOptionPane.QUESTION_MESSAGE);

You can retrieve the value in the JComboBox with:

jcb.getSelectedItem()