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Class java.awt.List

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.List

public class List
extends Component
implements ItemSelectable
A scrolling list of text items.


Constructor Index

 o List()
Creates a new scrolling list initialized with no visible Lines or multiple selections.
 o List(int)
Creates a new scrolling list initialized with the specified number of visible lines and a boolean stating whether multiple selections are allowed or not.
 o List(int, boolean)
Creates a new scrolling list initialized with the specified number of visible lines and a boolean stating whether multiple selections are allowed or not.

Method Index

 o add(String)
Adds the specified item to the end of scrolling list.
 o add(String, int)
Adds the specified item to the scrolling list at the specified position.
 o addActionListener(ActionListener)
Adds the specified action listener to receive action events from this list.
 o addItem(String)
Adds the specified item to the end of scrolling list.
 o addItem(String, int)
Adds the specified item to the scrolling list at the specified position.
 o addItemListener(ItemListener)
Adds the specified item listener to recieve item events from this list.
 o addNotify()
Creates the peer for the list.
 o allowsMultipleSelections()
Deprecated.
 o clear()
Deprecated.
 o countItems()
Deprecated.
 o delItem(int)
Removes an item from the list.
 o delItems(int, int)
Deprecated.
 o deselect(int)
Deselects the item at the specified index.
 o getItem(int)
Gets the item associated with the specified index.
 o getItemCount()
Returns the number of items in the list.
 o getItems()
Returns the items in the list.
 o getMinimumSize()
Returns the minimum dimensions needed for the list.
 o getMinimumSize(int)
Returns the minimum dimensions needed for the amount of rows in the list.
 o getPreferredSize()
Returns the preferred dimensions needed for the list.
 o getPreferredSize(int)
Returns the preferred dimensions needed for the list with the specified amount of rows.
 o getRows()
Returns the number of visible lines in this list.
 o getSelectedIndex()
Get the selected item on the list or -1 if no item is selected.
 o getSelectedIndexes()
Returns the selected indexes on the list.
 o getSelectedItem()
Returns the selected item on the list or null if no item is selected.
 o getSelectedItems()
Returns the selected items on the list in an array of Strings.
 o getSelectedObjects()
Returns the selected items on the list in an array of Objects.
 o getVisibleIndex()
Gets the index of the item that was last made visible by the method makeVisible.
 o isIndexSelected(int)
Returns true if the item at the specified index has been selected; false otherwise.
 o isMultipleMode()
Returns true if this list allows multiple selections.
 o isSelected(int)
Deprecated.
 o makeVisible(int)
Forces the item at the specified index to be visible.
 o minimumSize()
Deprecated.
 o minimumSize(int)
Deprecated.
 o paramString()
Returns the parameter String of this list.
 o preferredSize()
Deprecated.
 o preferredSize(int)
Deprecated.
 o processActionEvent(ActionEvent)
Processes action events occurring on this component by dispatching them to any registered ActionListener objects.
 o processEvent(AWTEvent)
Processes events on this list.
 o processItemEvent(ItemEvent)
Processes item events occurring on this list by dispatching them to any registered ItemListener objects.
 o remove(int)
Removes an item from the list.
 o remove(String)
Remove the first occurrence of item from the list.
 o removeActionListener(ActionListener)
Removes the specified action listener so it no longer receives action events from this list.
 o removeAll()
Removes all items from the list.
 o removeItemListener(ItemListener)
Removes the specified item listener so it no longer receives item events from this list.
 o removeNotify()
Removes the peer for this list.
 o replaceItem(String, int)
Replaces the item at the given index.
 o select(int)
Selects the item at the specified index.
 o setMultipleMode(boolean)
Sets whether this list should allow multiple selections or not.
 o setMultipleSelections(boolean)
Deprecated.

Constructors

 o List
    method List() public 
Creates a new scrolling list initialized with no visible Lines or multiple selections.

 o List
    method List(rows=int) public 
Creates a new scrolling list initialized with the specified number of visible lines and a boolean stating whether multiple selections are allowed or not.

Parameters:
rows - the number of items to show.
multipleMode - if true then multiple selections are allowed.
 o List
    method List(rows=int, -
                multipleMode=boolean) public 
Creates a new scrolling list initialized with the specified number of visible lines and a boolean stating whether multiple selections are allowed or not.

Parameters:
rows - the number of items to show.
multipleMode - if true then multiple selections are allowed.

Methods

 o addNotify
    method addNotify()  public     
Creates the peer for the list. The peer allows us to modify the list's appearance without changing its functionality.

Overrides:
addNotify in class Component
 o removeNotify
    method removeNotify()  public     
Removes the peer for this list. The peer allows us to modify the list's appearance without changing its functionality.

Overrides:
removeNotify in class Component
 o getItemCount
    method getItemCount() returns int public     
Returns the number of items in the list.

See Also:
getItem
 o countItems
    method countItems() returns int public     
Note: countItems() is deprecated. As of JDK version 1.1, replaced by getItemCount().

 o getItem
    method getItem(index=int) returns String public     
Gets the item associated with the specified index.

Parameters:
index - the position of the item
See Also:
getItemCount
 o getItems
    method getItems() returns String[] public    protect 
Returns the items in the list.

See Also:
select, deselect, isIndexSelected
 o add
    method add(item=String)  public     
Adds the specified item to the end of scrolling list.

Parameters:
item - the item to be added
 o addItem
    method addItem(item=String)  public     
Adds the specified item to the end of scrolling list.

Parameters:
item - the item to be added
 o add
    method add(item=String, -
               index=int)  public    protect 
Adds the specified item to the scrolling list at the specified position.

Parameters:
item - the item to be added
index - the position at which to put in the item. The index is zero-based. If index is -1 then the item is added to the end. If index is greater than the number of items in the list, the item gets added at the end.
 o addItem
    method addItem(item=String, -
                   index=int)  public    protect 
Adds the specified item to the scrolling list at the specified position.

Parameters:
item - the item to be added
index - the position at which to put in the item. The index is zero-based. If index is -1 then the item is added to the end. If index is greater than the number of items in the list, the item gets added at the end.
 o replaceItem
    method replaceItem(newValue=String, -
                       index=int)  public    protect 
Replaces the item at the given index.

Parameters:
newValue - the new value to replace the existing item
index - the position of the item to replace
 o removeAll
    method removeAll()  public    protect 
Removes all items from the list.

See Also:
remove, delItems
 o clear
    method clear()  public    protect 
Note: clear() is deprecated. As of JDK version 1.1, replaced by removeAll().

 o remove
    method remove(item=String)  public    protect 
Remove the first occurrence of item from the list.

Parameters:
item - the item to remove from the list
Throws: IllegalArgumentException
If the item doesn't exist in the list.
 o remove
    method remove(position=int)  public    protect 
Removes an item from the list.

 o delItem
    method delItem(position=int)  public    protect 
Removes an item from the list.

 o getSelectedIndex
    method getSelectedIndex() returns int public    protect 
Get the selected item on the list or -1 if no item is selected.

See Also:
select, deselect, isIndexSelected
 o getSelectedIndexes
    method getSelectedIndexes() returns int[] public    protect 
Returns the selected indexes on the list.

See Also:
select, deselect, isIndexSelected
 o getSelectedItem
    method getSelectedItem() returns String public    protect 
Returns the selected item on the list or null if no item is selected.

See Also:
select, deselect, isIndexSelected
 o getSelectedItems
    method getSelectedItems() returns String[] public    protect 
Returns the selected items on the list in an array of Strings.

See Also:
select, deselect, isIndexSelected
 o getSelectedObjects
    method getSelectedObjects() returns Object[] public     
Returns the selected items on the list in an array of Objects.

See Also:
ItemSelectable
 o select
    method select(index=int)  public    protect 
Selects the item at the specified index.

Parameters:
index - the position of the item to select
See Also:
getSelectedItem, deselect, isIndexSelected
 o deselect
    method deselect(index=int)  public    protect 
Deselects the item at the specified index.

Parameters:
index - the position of the item to deselect
See Also:
select, getSelectedItem, isIndexSelected
 o isIndexSelected
    method isIndexSelected(index=int) returns boolean public     
Returns true if the item at the specified index has been selected; false otherwise.

Parameters:
index - the item to be checked
See Also:
select, deselect
 o isSelected
    method isSelected(index=int) returns boolean public     
Note: isSelected() is deprecated. As of JDK version 1.1, replaced by isIndexSelected(int).

 o getRows
    method getRows() returns int public     
Returns the number of visible lines in this list.

 o isMultipleMode
    method isMultipleMode() returns boolean public     
Returns true if this list allows multiple selections.

See Also:
setMultipleMode
 o allowsMultipleSelections
    method allowsMultipleSelections() returns boolean public     
Note: allowsMultipleSelections() is deprecated. As of JDK version 1.1, replaced by isMultipleMode().

 o setMultipleMode
    method setMultipleMode(b=boolean)  public    protect 
Sets whether this list should allow multiple selections or not.

Parameters:
v - the boolean to allow multiple selections
See Also:
isMultipleMode
 o setMultipleSelections
    method setMultipleSelections(b=boolean)  public    protect 
Note: setMultipleSelections() is deprecated. As of JDK version 1.1, replaced by setMultipleMode(boolean).

 o getVisibleIndex
    method getVisibleIndex() returns int public     
Gets the index of the item that was last made visible by the method makeVisible.

 o makeVisible
    method makeVisible(index=int)  public    protect 
Forces the item at the specified index to be visible.

Parameters:
index - the position of the item
See Also:
getVisibleIndex
 o getPreferredSize
    method getPreferredSize(rows=int) returns Dimension public     
Returns the preferred dimensions needed for the list with the specified amount of rows.

Parameters:
rows - amount of rows in list.
 o preferredSize
    method preferredSize(rows=int) returns Dimension public     
Note: preferredSize() is deprecated. As of JDK version 1.1, replaced by getPreferredSize(int).

 o getPreferredSize
    method getPreferredSize() returns Dimension public     
Returns the preferred dimensions needed for the list.

Returns:
the preferred size with the specified number of rows if the row size is greater than 0.
Overrides:
getPreferredSize in class Component
 o preferredSize
    method preferredSize() returns Dimension public     
Note: preferredSize() is deprecated. As of JDK version 1.1, replaced by getPreferredSize().

Overrides:
preferredSize in class Component
 o getMinimumSize
    method getMinimumSize(rows=int) returns Dimension public     
Returns the minimum dimensions needed for the amount of rows in the list.

Parameters:
rows - minimum amount of rows in the list
 o minimumSize
    method minimumSize(rows=int) returns Dimension public     
Note: minimumSize() is deprecated. As of JDK version 1.1, replaced by getMinimumSize(int).

 o getMinimumSize
    method getMinimumSize() returns Dimension public     
Returns the minimum dimensions needed for the list.

Returns:
the preferred size with the specified number of rows if the row size is greater than zero.
Overrides:
getMinimumSize in class Component
 o minimumSize
    method minimumSize() returns Dimension public     
Note: minimumSize() is deprecated. As of JDK version 1.1, replaced by getMinimumSize().

Overrides:
minimumSize in class Component
 o addItemListener
    method addItemListener(l=ItemListener)  public     
Adds the specified item listener to recieve item events from this list.

Parameters:
l - the item listener
 o removeItemListener
    method removeItemListener(l=ItemListener)  public     
Removes the specified item listener so it no longer receives item events from this list.

Parameters:
l - the item listener
 o addActionListener
    method addActionListener(l=ActionListener)  public     
Adds the specified action listener to receive action events from this list. Action events occur when a list item is double-clicked.

Parameters:
l - the action listener
 o removeActionListener
    method removeActionListener(l=ActionListener)  public     
Removes the specified action listener so it no longer receives action events from this list.

Parameters:
l - the action listener
 o processEvent
    method processEvent(e=AWTEvent)  Inheritable     
Processes events on this list. If the event is an ItemEvent, it invokes the processItemEvent method, else if the event is an ActionEvent, it invokes the processActionEvent method, else it invokes the superclass's processEvent.

Parameters:
e - the event
Overrides:
processEvent in class Component
 o processItemEvent
    method processItemEvent(e=ItemEvent)  Inheritable     
Processes item events occurring on this list by dispatching them to any registered ItemListener objects. NOTE: This method will not be called unless item events are enabled for this component; this happens when one of the following occurs: a) An ItemListener object is registered via addItemListener() b) Item events are enabled via enableEvents()

Parameters:
e - the item event
See Also:
enableEvents
 o processActionEvent
    method processActionEvent(e=ActionEvent)  Inheritable     
Processes action events occurring on this component by dispatching them to any registered ActionListener objects. NOTE: This method will not be called unless action events are enabled for this component; this happens when one of the following occurs: a) An ActionListener object is registered via addActionListener() b) Action events are enabled via enableEvents()

Parameters:
e - the action event
See Also:
enableEvents
 o paramString
    method paramString() returns String Inheritable     
Returns the parameter String of this list.

Overrides:
paramString in class Component
 o delItems
    method delItems(start=int, -
                    end=int)  public    protect 
Note: delItems() is deprecated. As of JDK version 1.1, Not for public use in the future. This method is expected to be retained only as a package private method.


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