javax.swing
Class DefaultComboBoxModeljava.lang.Object | +--javax.swing.AbstractListModel | +--javax.swing.DefaultComboBoxModel
- All Implemented Interfaces:
- ComboBoxModel, ListModel, MutableComboBoxModel, Serializable
- public class DefaultComboBoxModel
- extends AbstractListModel
- implements MutableComboBoxModel, Serializable
The default model for combo boxes.
Field Summary
Fields inherited from class javax.swing.AbstractListModel listenerList
Constructor Summary
DefaultComboBoxModel()
Constructs an empty DefaultComboBoxModel object.DefaultComboBoxModel(Object[] items)
Constructs a DefaultComboBoxModel object initialized with an array of objects.DefaultComboBoxModel(Vector v)
Constructs a DefaultComboBoxModel object initialized with a vector.
Method Summary
void addElement(Object anObject)
Adds an item at the end of the model.Object getElementAt(int index)
Returns the value at the specified index.int getIndexOf(Object anObject)
Returns the index-position of the specified object in the list.Object getSelectedItem()
Returns the selected itemint getSize()
Returns the length of the list.void insertElementAt(Object anObject, int index)
Adds an item at a specific index.void removeAllElements()
Empties the list.void removeElement(Object anObject)
Removes an item from the model.void removeElementAt(int index)
Removes an item at a specific index.void setSelectedItem(Object anObject)
Set the value of the selected item.
Methods inherited from class javax.swing.AbstractListModel addListDataListener, fireContentsChanged, fireIntervalAdded, fireIntervalRemoved, getListDataListeners, getListeners, removeListDataListener
Methods inherited from class java.lang.Object clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface javax.swing.ListModel addListDataListener, removeListDataListener
Constructor Detail
DefaultComboBoxModel
public DefaultComboBoxModel()
- Constructs an empty DefaultComboBoxModel object.
DefaultComboBoxModel
public DefaultComboBoxModel(Object[] items)
- Constructs a DefaultComboBoxModel object initialized with an array of objects.
- Parameters:
- items - an array of Object objects
DefaultComboBoxModel
public DefaultComboBoxModel(Vector v)
- Constructs a DefaultComboBoxModel object initialized with a vector.
- Parameters:
- v - a Vector object ...
Method Detail
setSelectedItem
public void setSelectedItem(Object anObject)
- Set the value of the selected item. The selected item may be null.
- Specified by:
- setSelectedItem in interface ComboBoxModel
- Parameters:
- anObject - The combo box value or null for no selection.
getSelectedItem
public Object getSelectedItem()
- Description copied from interface: ComboBoxModel
- Returns the selected item
- Specified by:
- getSelectedItem in interface ComboBoxModel
- Returns:
- The selected item or null if there is no selection
getSize
public int getSize()
- Description copied from interface: ListModel
- Returns the length of the list.
- Specified by:
- getSize in interface ListModel
- Returns:
- the length of the list
getElementAt
public Object getElementAt(int index)
- Description copied from interface: ListModel
- Returns the value at the specified index.
- Specified by:
- getElementAt in interface ListModel
- Parameters:
- index - the requested index
- Returns:
- the value at index
getIndexOf
public int getIndexOf(Object anObject)
- Returns the index-position of the specified object in the list.
- Parameters:
- anObject -
- Returns:
- an int representing the index position, where 0 is the first position
addElement
public void addElement(Object anObject)
- Description copied from interface: MutableComboBoxModel
- Adds an item at the end of the model. The implementation of this method should notify all registered ListDataListeners that the item has been added.
- Specified by:
- addElement in interface MutableComboBoxModel
- Parameters:
- anObject - the Object to be added
insertElementAt
public void insertElementAt(Object anObject, int index)
- Description copied from interface: MutableComboBoxModel
- Adds an item at a specific index. The implementation of this method should notify all registered ListDataListeners that the item has been added.
- Specified by:
- insertElementAt in interface MutableComboBoxModel
- Parameters:
- anObject - the Object to be added
- index - location to add the object
removeElementAt
public void removeElementAt(int index)
- Description copied from interface: MutableComboBoxModel
- Removes an item at a specific index. The implementation of this method should notify all registered ListDataListeners that the item has been removed.
- Specified by:
- removeElementAt in interface MutableComboBoxModel
- Parameters:
- index - location of object to be removed
removeElement
public void removeElement(Object anObject)
- Description copied from interface: MutableComboBoxModel
- Removes an item from the model. The implementation of this method should should notify all registered ListDataListeners that the item has been removed.
- Specified by:
- removeElement in interface MutableComboBoxModel
- Parameters:
- anObject - the Object to be removed
removeAllElements
public void removeAllElements()
- Empties the list.