I would like to make a JComboBox that has check boxes for items instead of text. In addition, it should be possible to check multiple items and retrieve the selected items f
We were once given this same inane requirement as well. We complied with a brand new component.
It was essentially a JPanel which had a text field and a down arrow button. It contained a JList which used a JCheckbox-derrived ListCellRenderer. The JList was packaged in a JPopupMenu
which was displayed on mouse clicks.