DefaultComboBoxModel

java.lang.Object
- javax.swing.AbstractListModel<E>
- - javax.swing.DefaultComboBoxModel<E>

Type Parameters:

E - the type of the elements of this model

All Implemented Interfaces:

Serializable, ComboBoxModel<E>, ListModel<E>, MutableComboBoxModel<E>
```
public class DefaultComboBoxModel<E>
extends AbstractListModel<E>
implements MutableComboBoxModel<E>, Serializable
```
The default model for combo boxes.

Field Summary
- Fields inherited from class javax.swing.AbstractListModel
  listenerList

Constructor Summary

Constructors

Constructor and Description
`DefaultComboBoxModel()` Constructs an empty DefaultComboBoxModel object.
`DefaultComboBoxModel(E[] items)` Constructs a DefaultComboBoxModel object initialized with an array of objects.
`DefaultComboBoxModel(Vector<E> v)` Constructs a DefaultComboBoxModel object initialized with a vector.

Method Summary

All Methods

Instance Methods

Concrete Methods
Modifier and Type	Method and Description
`void`	`addElement(E anObject)` Adds an item at the end of the model.
`E`	`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 item
`int`	`getSize()` Returns the length of the list.
`void`	`insertElementAt(E 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(E[] items)
```
    Constructs a DefaultComboBoxModel object initialized with an array of objects.
    
    Parameters:
    
    items - an array of Object objects
  - DefaultComboBoxModel
```
public DefaultComboBoxModel(Vector<E> 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<E>
    
    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<E>
    
    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<E>
    
    Returns:
    
    the length of the list
  - getElementAt
```
public E getElementAt(int index)
```
    Description copied from interface: ListModel
    
    Returns the value at the specified index.
    
    Specified by:
    
    getElementAt in interface ListModel<E>
    
    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(E 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<E>
    
    Parameters:
    
    anObject - the item to be added
  - insertElementAt
```
public void insertElementAt(E 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<E>
    
    Parameters:
    
    anObject - the item 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<E>
    
    Parameters:
    
    index - location of the item 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<E>
    
    Parameters:
    
    anObject - the Object to be removed
  - removeAllElements
```
public void removeAllElements()
```
    Empties the list.

Class DefaultComboBoxModel<E>

Field Summary

Fields inherited from class javax.swing.AbstractListModel

Constructor Summary

Constructors

Method Summary

Methods inherited from class javax.swing.AbstractListModel

Methods inherited from class java.lang.Object

Methods inherited from interface javax.swing.ListModel

Constructor Detail

DefaultComboBoxModel

DefaultComboBoxModel

DefaultComboBoxModel

Method Detail

setSelectedItem

getSelectedItem

getSize

getElementAt

getIndexOf

addElement

insertElementAt

removeElementAt

removeElement

removeAllElements