Class java.awt.Choice
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Class java.awt.Choice
java.lang.Object
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+----java.awt.Component
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+----java.awt.Choice
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public class
Choice
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extends Component
The Choice class is a pop-up menu of choices. The current choice is
displayed as the title of the menu.
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Version:
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1.15 09/08/95
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Author:
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Sami Shaio,
Arthur van Hoff
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Choice()
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Constructs a new Choice.
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addItem(String)
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Adds an item to this Choice.
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addNotify()
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Creates the Choice's peer.
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countItems()
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Returns the number of items in this Choice.
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getItem(int)
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Returns the String at the specified index in the Choice.
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getSelectedIndex()
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Returns the index of the currently selected item.
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getSelectedItem()
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Returns a String representation of the current choice.
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paramString()
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Returns the parameter String of this Choice.
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select(int)
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Selects the item with the specified postion.
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select(String)
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Selects the item with the specified String.
Choice
public Choice()
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Constructs a new Choice.
addNotify
public synchronized void addNotify()
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Creates the Choice's peer. This peer allows us to change the look
of the Choice without changing its functionality.
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Overrides:
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addNotify in class Component
countItems
public int countItems()
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Returns the number of items in this Choice.
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See Also:
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getItem
getItem
public String getItem(int index)
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Returns the String at the specified index in the Choice.
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Parameters:
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index
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the index to begin at
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See Also:
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countItems
addItem
public synchronized void addItem(String item)
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Adds an item to this Choice.
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Parameters:
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item
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the item to be added
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Throws: NullPointerException
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If the item's value is equal to null.
getSelectedItem
public String getSelectedItem()
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Returns a String representation of the current choice.
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See Also:
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getSelectedIndex
getSelectedIndex
public int getSelectedIndex()
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Returns the index of the currently selected item.
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See Also:
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getSelectedItem
select
public synchronized void select(int pos)
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Selects the item with the specified postion.
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Parameters:
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pos
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the choice item position
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Throws: IllegalArgumentException
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If the choice item position is
invalid.
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See Also:
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getSelectedItem,
getSelectedIndex
select
public void select(String str)
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Selects the item with the specified String.
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Parameters:
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str
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the specified String
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See Also:
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getSelectedItem,
getSelectedIndex
paramString
protected String paramString()
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Returns the parameter String of this Choice.
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Overrides:
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paramString in class Component
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