Interface ComboBoxModel<E>

Type Parameters:: E - the type of the elements of this model

All Superinterfaces:: ListModel<E>

All Known Subinterfaces:: MutableComboBoxModel<E>

All Known Implementing Classes:: DefaultComboBoxModel, MetalFileChooserUI.DirectoryComboBoxModel, MetalFileChooserUI.FilterComboBoxModel

public interface ComboBoxModel<E> extends ListModel<E>

A data model for a combo box. This interface extends ListModel and adds the concept of a selected item. The selected item is generally the item which is visible in the combo box display area.

The selected item may not necessarily be managed by the underlying ListModel. This disjoint behavior allows for the temporary storage and retrieval of a selected item in the model.

Since:: 1.2

Method Summary

Modifier and Type	Method	Description
`Object`	`getSelectedItem()`	Returns the selected item
`void`	`setSelectedItem(Object anItem)`	Set the selected item.

Methods declared in interface ListModel

addListDataListener, getElementAt, getSize, removeListDataListener

Method Details

setSelectedItem

void setSelectedItem(Object anItem)

Set the selected item. The implementation of this method should notify all registered ListDataListeners that the contents have changed.

Parameters:: anItem - the list object to select or null to clear the selection

getSelectedItem

Object getSelectedItem()

Returns the selected item

Returns:: The selected item or null if there is no selection

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https://docs.oracle.com/en/java/javase/25/docs/api/java.desktop/javax/swing/ComboBoxModel.html