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Class java.awt.swing.JComboBox

java.lang.Object
    |
    +----java.awt.Component
            |
            +----java.awt.Container
                    |
                    +----java.awt.swing.JComponent
                            |
                            +----java.awt.swing.JComboBox

public class JComboBox

extends JComponent

implements ItemSelectable, ListDataListener, ActionListener

JComboBox.KeySelectionManager

actionCommand

dataModel

editor

isEditable

keySelectionManager

maximumRowCount

renderer

selectedItemReminder

JComboBox()

JComboBox(ComboBoxModel)

actionPerformed(ActionEvent)

This method is public as an implementation side effect.

addActionListener(ActionListener)

Add an ActionListener.

addItem(Object)

Add an item in the item list.

addItemListener(ItemListener)

Add an ItemListener.

configureEditor(ComboBoxEditor, Object)

contentsChanged(ListDataEvent)

This method is public as an implementation side effect.

createDefaultKeySelectionManager()

fireActionEvent()

fireItemStateChanged(ItemEvent)

getActionCommand()

Return the action commnand that is included into the event sent to action listeners

getEditor()

getItemAt(int)

getItemCount()

Accessing the model

getKeySelectionManager()

getMaximumRowCount()

getModel()

getRenderer()

getSelectedIndex()

getSelectedItem()

getSelectedObjects()

Return an array containing the selected item.

getUI()

getUIClassID()

hidePopup()

Causes the combo box to hide its popup

insertItemAt(Object, int)

Insert an item in the item list at a given index

intervalAdded(ListDataEvent)

intervalRemoved(ListDataEvent)

isEditable()

isFocusTraversable()

Identifies whether or not this component can receive the focus.

isOpaque()

Returns true if this component is completely opaque.

processKeyEvent(KeyEvent)

Override processKeyEvent to process events

removeActionListener(ActionListener)

Remove an ActionListener

removeAllItems()

Convenience to remove all items This method works only if the receiving JComboBox uses the default JComboBox data model.

removeItem(Object)

Remove an item from the item list.

removeItemAt(int)

Remove the item at anIndex

removeItemListener(ItemListener)

Remove an ItemListener

selectedItemChanged()

This method is called when the selected item changes.

selectWithKeyChar(char)

setActionCommand(String)

Set the action commnand that should be included into the event sent to action listeners

setEditable(boolean)

setEditor(ComboBoxEditor)

setEnabled(boolean)

Enables or disables this component, depending on the value of the parameter b.

setKeySelectionManager(JComboBox.KeySelectionManager)

setMaximumRowCount(int)

setModel(ComboBoxModel)

setRenderer(ListCellRenderer)

setSelectedIndex(int)

setSelectedItem(Object)

Set the receiving JComboBox selected item.

setUI(ComboBoxUI)

showPopup()

Causes the combo box to show its popup

updateUI()

Overriden from JComponent to change the UI according to the default factory

protected ComboBoxModel dataModel

protected ListCellRenderer renderer

protected ComboBoxEditor editor

protected int maximumRowCount

protected boolean isEditable

protected Object selectedItemReminder

protected JComboBox.KeySelectionManager keySelectionManager

protected String actionCommand

public JComboBox(ComboBoxModel aModel)

public JComboBox()

public void setUI(ComboBoxUI ui)

public void updateUI()

Overriden from JComponent to change the UI according to the default factory

Overrides:

updateUI in class JComponent

public String getUIClassID()

Returns:

"ComboBoxUI"

Overrides:

getUIClassID in class JComponent

See Also:

getUIClassID, getUI

public ComboBoxUI getUI()

public void setModel(ComboBoxModel aModel)

public ComboBoxModel getModel()

public void setEditable(boolean aFlag)

public boolean isEditable()

public void setMaximumRowCount(int count)

public int getMaximumRowCount()

public void setRenderer(ListCellRenderer aRenderer)

public ListCellRenderer getRenderer()

public void setEditor(ComboBoxEditor anEditor)

public ComboBoxEditor getEditor()

public void setSelectedItem(Object anObject)

Set the receiving JComboBox selected item. If anObject is in the list of items the list will display anObject selected

public Object getSelectedItem()

public void setSelectedIndex(int anIndex)

public int getSelectedIndex()

public void addItem(Object anObject)

Add an item in the item list. This method works only if the receiving JComboBox uses the default JComboBox data model. JComboBox uses the default JComboBox data model when created with the empty constructor and no other model has been set.

public void insertItemAt(Object anObject,
                         int index)

Insert an item in the item list at a given index

public void removeItem(Object anObject)

Remove an item from the item list. This method works only if the receiving JComboBox uses the default JComboBox data model. JComboBox uses the default JComboBox data model when created with the empty constructor and no other model has been set.

public void removeItemAt(int anIndex)

Remove the item at anIndex

public void removeAllItems()

Convenience to remove all items This method works only if the receiving JComboBox uses the default JComboBox data model. JComboBox uses the default JComboBox data model when created with the empty constructor and no other model has been set.

public void showPopup()

Causes the combo box to show its popup

public void hidePopup()

Causes the combo box to hide its popup

public void addItemListener(ItemListener aListener)

Add an ItemListener. aListener will receive an event when the selected item changes

public void removeItemListener(ItemListener aListener)

Remove an ItemListener

public void addActionListener(ActionListener l)

Add an ActionListener. The listener will receive an action event when the selected item changes

public void removeActionListener(ActionListener l)

Remove an ActionListener

public void setActionCommand(String aCommand)

Set the action commnand that should be included into the event sent to action listeners

public String getActionCommand()

Return the action commnand that is included into the event sent to action listeners

protected void fireItemStateChanged(ItemEvent e)

protected void fireActionEvent()

protected void selectedItemChanged()

This method is called when the selected item changes. Its default implementation notifies the item listeners

public Object[] getSelectedObjects()

Return an array containing the selected item. This method is implemented for ItemSelectable compatibility reasons.

public void actionPerformed(ActionEvent e)

This method is public as an implementation side effect. do not call or override

public void contentsChanged(ListDataEvent e)

This method is public as an implementation side effect. do not call or override

public boolean selectWithKeyChar(char keyChar)

public void intervalAdded(ListDataEvent e)

public void intervalRemoved(ListDataEvent e)

public void setEnabled(boolean b)

Enables or disables this component, depending on the value of the parameter b.

Overrides:

setEnabled in class Component

public void configureEditor(ComboBoxEditor anEditor,
                            Object anItem)

public void processKeyEvent(KeyEvent e)

Override processKeyEvent to process events

Overrides:

processKeyEvent in class JComponent

public boolean isFocusTraversable()

Identifies whether or not this component can receive the focus.

Overrides:

isFocusTraversable in class JComponent

public void setKeySelectionManager(JComboBox.KeySelectionManager aManager)

public JComboBox.KeySelectionManager getKeySelectionManager()

public int getItemCount()

Accessing the model

public Object getItemAt(int index)

protected JComboBox.KeySelectionManager createDefaultKeySelectionManager()

public boolean isOpaque()

Returns true if this component is completely opaque.

Overrides:

isOpaque in class JComponent

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