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javax.swing
Class JCheckBox
java.lang.Object
java.awt.Component
java.awt.Container
javax.swing.JComponent
javax.swing.AbstractButton
javax.swing.JToggleButton
javax.swing.JCheckBox
-
All Implemented Interfaces:
-
ImageObserver
,
ItemSelectable
,
MenuContainer
,
Serializable
,
Accessible
,
SwingConstants
-
public class JCheckBox
- extends JToggleButton
- implements Accessible
An implementation of a check box -- an item that can be selected or deselected, and which displays its state to the user. By convention, any number of check boxes in a group can be selected. See
How to Use Buttons, Check Boxes, and Radio Buttons
in The Java Tutorial for examples and information on using check boxes.
Buttons can be configured, and to some degree controlled, by
Action
s. Using an Action with a button has many benefits beyond directly configuring a button. Refer to
Swing Components Supporting Action
for more details, and you can find more information in
How to Use Actions
, a section in The Java Tutorial.
Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans
TM
has been added to the java.beans package. Please see
XMLEncoder
.
-
See Also:
-
JRadioButton
Nested Class Summary
|
protected class |
JCheckBox.AccessibleJCheckBox
This class implements accessibility support for the JCheckBox class. |
Nested classes/interfaces inherited from class javax.swing.
AbstractButton
|
AbstractButton.AccessibleAbstractButton
,
AbstractButton.ButtonChangeListener
|
Nested classes/interfaces inherited from class javax.swing.
JComponent
|
JComponent.AccessibleJComponent
|
Nested classes/interfaces inherited from class java.awt.
Container
|
Container.AccessibleAWTContainer
|
Fields inherited from class javax.swing.
AbstractButton
|
actionListener
,
BORDER_PAINTED_CHANGED_PROPERTY
,
changeEvent
,
changeListener
,
CONTENT_AREA_FILLED_CHANGED_PROPERTY
,
DISABLED_ICON_CHANGED_PROPERTY
,
DISABLED_SELECTED_ICON_CHANGED_PROPERTY
,
FOCUS_PAINTED_CHANGED_PROPERTY
,
HORIZONTAL_ALIGNMENT_CHANGED_PROPERTY
,
HORIZONTAL_TEXT_POSITION_CHANGED_PROPERTY
,
ICON_CHANGED_PROPERTY
,
itemListener
,
MARGIN_CHANGED_PROPERTY
,
MNEMONIC_CHANGED_PROPERTY
,
model
,
MODEL_CHANGED_PROPERTY
,
PRESSED_ICON_CHANGED_PROPERTY
,
ROLLOVER_ENABLED_CHANGED_PROPERTY
,
ROLLOVER_ICON_CHANGED_PROPERTY
,
ROLLOVER_SELECTED_ICON_CHANGED_PROPERTY
,
SELECTED_ICON_CHANGED_PROPERTY
,
TEXT_CHANGED_PROPERTY
,
VERTICAL_ALIGNMENT_CHANGED_PROPERTY
,
VERTICAL_TEXT_POSITION_CHANGED_PROPERTY
|
Fields inherited from interface javax.swing.
SwingConstants
|
BOTTOM
,
CENTER
,
EAST
,
HORIZONTAL
,
LEADING
,
LEFT
,
NEXT
,
NORTH
,
NORTH_EAST
,
NORTH_WEST
,
PREVIOUS
,
RIGHT
,
SOUTH
,
SOUTH_EAST
,
SOUTH_WEST
,
TOP
,
TRAILING
,
VERTICAL
,
WEST
|
Fields inherited from interface java.awt.image.
ImageObserver
|
ABORT
,
ALLBITS
,
ERROR
,
FRAMEBITS
,
HEIGHT
,
PROPERTIES
,
SOMEBITS
,
WIDTH
|
Constructor Summary
|
JCheckBox
()
Creates an initially unselected check box button with no text, no icon. |
JCheckBox
(
Action
a)
Creates a check box where properties are taken from the Action supplied. |
JCheckBox
(
Icon
icon)
Creates an initially unselected check box with an icon. |
JCheckBox
(
Icon
icon, boolean selected)
Creates a check box with an icon and specifies whether or not it is initially selected. |
JCheckBox
(
String
text)
Creates an initially unselected check box with text. |
JCheckBox
(
String
text, boolean selected)
Creates a check box with text and specifies whether or not it is initially selected. |
JCheckBox
(
String
text,
Icon
icon)
Creates an initially unselected check box with the specified text and icon. |
JCheckBox
(
String
text,
Icon
icon, boolean selected)
Creates a check box with text and icon, and specifies whether or not it is initially selected. |
Method Summary
|
protected void
|
configurePropertiesFromAction
(
Action
Factory method which sets the ActionEvent source's properties according to values from the Action instance.
|
protected
PropertyChangeListener
|
createActionPropertyChangeListener
(
Action
Factory method which creates the PropertyChangeListener used to update the ActionEvent source as properties change on its Action instance.
|
AccessibleContext
|
getAccessibleContext
()
Gets the AccessibleContext associated with this JCheckBox. |
String
|
getUIClassID
()
Returns a string that specifies the name of the L&F class that renders this component. |
boolean |
isBorderPaintedFlat
()
Gets the value of the borderPaintedFlat property. |
protected
String
|
paramString
()
Returns a string representation of this JCheckBox. |
void |
setBorderPaintedFlat
(boolean b)
Sets the borderPaintedFlat property, which gives a hint to the look and feel as to the appearance of the check box border. |
void |
updateUI
()
Resets the UI property to a value from the current look and feel. |
Methods inherited from class javax.swing.
AbstractButton
|
addActionListener
,
addChangeListener
,
addImpl
,
addItemListener
,
checkHorizontalKey
,
checkVerticalKey
,
configurePropertiesFromAction
,
createActionListener
,
createActionPropertyChangeListener
,
createChangeListener
,
createItemListener
,
doClick
,
doClick
,
fireActionPerformed
,
fireItemStateChanged
,
fireStateChanged
,
getAction
,
getActionCommand
,
getActionListeners
,
getChangeListeners
,
getDisabledIcon
,
getDisabledSelectedIcon
,
getDisplayedMnemonicIndex
,
getHideActionText
,
getHorizontalAlignment
,
getHorizontalTextPosition
,
getIcon
,
getIconTextGap
,
getItemListeners
,
getLabel
,
getMargin
,
getMnemonic
,
getModel
,
getMultiClickThreshhold
,
getPressedIcon
,
getRolloverIcon
,
getRolloverSelectedIcon
,
getSelectedIcon
,
getSelectedObjects
,
getText
,
getUI
,
getVerticalAlignment
,
getVerticalTextPosition
,
imageUpdate
,
init
,
isBorderPainted
,
isContentAreaFilled
,
isFocusPainted
,
isRolloverEnabled
,
isSelected
,
paintBorder
,
removeActionListener
,
removeChangeListener
,
removeItemListener
,
removeNotify
,
setAction
,
setActionCommand
,
setBorderPainted
,
setContentAreaFilled
,
setDisabledIcon
,
setDisabledSelectedIcon
,
setDisplayedMnemonicIndex
,
setEnabled
,
setFocusPainted
,
setHideActionText
,
setHorizontalAlignment
,
setHorizontalTextPosition
,
setIcon
,
setIconTextGap
,
setLabel
,
setLayout
,
setMargin
,
setMnemonic
,
setMnemonic
,
setModel
,
setMultiClickThreshhold
,
setPressedIcon
,
setRolloverEnabled
,
setRolloverIcon
,
setRolloverSelectedIcon
,
setSelected
,
setSelectedIcon
,
setText
,
setUI
,
setVerticalAlignment
,
setVerticalTextPosition
|
Methods inherited from class javax.swing.
JComponent
|
addAncestorListener
,
addNotify
,
addVetoableChangeListener
,
computeVisibleRect
,
contains
,
createToolTip
,
disable
,
enable
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
fireVetoableChange
,
getActionForKeyStroke
,
getActionMap
,
getAlignmentX
,
getAlignmentY
,
getAncestorListeners
,
getAutoscrolls
,
getBaseline
,
getBaselineResizeBehavior
,
getBorder
,
getBounds
,
getClientProperty
,
getComponentGraphics
,
getComponentPopupMenu
,
getConditionForKeyStroke
,
getDebugGraphicsOptions
,
getDefaultLocale
,
getFontMetrics
,
getGraphics
,
getHeight
,
getInheritsPopupMenu
,
getInputMap
,
getInputMap
,
getInputVerifier
,
getInsets
,
getInsets
,
getListeners
,
getLocation
,
getMaximumSize
,
getMinimumSize
,
getNextFocusableComponent
,
getPopupLocation
,
getPreferredSize
,
getRegisteredKeyStrokes
,
getRootPane
,
getSize
,
getToolTipLocation
,
getToolTipText
,
getToolTipText
,
getTopLevelAncestor
,
getTransferHandler
,
getVerifyInputWhenFocusTarget
,
getVetoableChangeListeners
,
getVisibleRect
,
getWidth
,
getX
,
getY
,
grabFocus
,
isDoubleBuffered
,
isLightweightComponent
,
isManagingFocus
,
isOpaque
,
isOptimizedDrawingEnabled
,
isPaintingForPrint
,
isPaintingTile
,
isRequestFocusEnabled
,
isValidateRoot
,
paint
,
paintChildren
,
paintComponent
,
paintImmediately
,
paintImmediately
,
print
,
printAll
,
printBorder
,
printChildren
,
printComponent
,
processComponentKeyEvent
,
processKeyBinding
,
processKeyEvent
,
processMouseEvent
,
processMouseMotionEvent
,
putClientProperty
,
registerKeyboardAction
,
registerKeyboardAction
,
removeAncestorListener
,
removeNotify
,
removeVetoableChangeListener
,
repaint
,
repaint
,
requestDefaultFocus
,
requestFocus
,
requestFocus
,
requestFocusInWindow
,
requestFocusInWindow
,
resetKeyboardActions
,
reshape
,
revalidate
,
scrollRectToVisible
,
setActionMap
,
setAlignmentX
,
setAlignmentY
,
setAutoscrolls
,
setBackground
,
setBorder
,
setComponentPopupMenu
,
setDebugGraphicsOptions
,
setDefaultLocale
,
setDoubleBuffered
,
setFocusTraversalKeys
,
setFont
,
setForeground
,
setInheritsPopupMenu
,
setInputMap
,
setInputVerifier
,
setMaximumSize
,
setMinimumSize
,
setNextFocusableComponent
,
setOpaque
,
setPreferredSize
,
setRequestFocusEnabled
,
setToolTipText
,
setTransferHandler
,
setUI
,
setVerifyInputWhenFocusTarget
,
setVisible
,
unregisterKeyboardAction
,
update
|
Methods inherited from class java.awt.
Container
|
add
,
add
,
add
,
add
,
add
,
addContainerListener
,
addPropertyChangeListener
,
addPropertyChangeListener
,
applyComponentOrientation
,
areFocusTraversalKeysSet
,
countComponents
,
deliverEvent
,
doLayout
,
findComponentAt
,
findComponentAt
,
getComponent
,
getComponentAt
,
getComponentAt
,
getComponentCount
,
getComponents
,
getComponentZOrder
,
getContainerListeners
,
getFocusTraversalKeys
,
getFocusTraversalPolicy
,
getLayout
,
getMousePosition
,
insets
,
invalidate
,
isAncestorOf
,
isFocusCycleRoot
,
isFocusCycleRoot
,
isFocusTraversalPolicyProvider
,
isFocusTraversalPolicySet
,
layout
,
list
,
list
,
locate
,
minimumSize
,
paintComponents
,
preferredSize
,
printComponents
,
processContainerEvent
,
processEvent
,
remove
,
remove
,
removeAll
,
removeContainerListener
,
setComponentZOrder
,
setFocusCycleRoot
,
setFocusTraversalPolicy
,
setFocusTraversalPolicyProvider
,
transferFocusBackward
,
transferFocusDownCycle
,
validate
,
validateTree
|
Methods inherited from class java.awt.
Component
|
action
,
add
,
addComponentListener
,
addFocusListener
,
addHierarchyBoundsListener
,
addHierarchyListener
,
addInputMethodListener
,
addKeyListener
,
addMouseListener
,
addMouseMotionListener
,
addMouseWheelListener
,
bounds
,
checkImage
,
checkImage
,
coalesceEvents
,
contains
,
createImage
,
createImage
,
createVolatileImage
,
createVolatileImage
,
disableEvents
,
dispatchEvent
,
enable
,
enableEvents
,
enableInputMethods
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
firePropertyChange
,
getBackground
,
getBounds
,
getColorModel
,
getComponentListeners
,
getComponentOrientation
,
getCursor
,
getDropTarget
,
getFocusCycleRootAncestor
,
getFocusListeners
,
getFocusTraversalKeysEnabled
,
getFont
,
getForeground
,
getGraphicsConfiguration
,
getHierarchyBoundsListeners
,
getHierarchyListeners
,
getIgnoreRepaint
,
getInputContext
,
getInputMethodListeners
,
getInputMethodRequests
,
getKeyListeners
,
getLocale
,
getLocation
,
getLocationOnScreen
,
getMouseListeners
,
getMouseMotionListeners
,
getMousePosition
,
getMouseWheelListeners
,
getName
,
getParent
,
getPeer
,
getPropertyChangeListeners
,
getPropertyChangeListeners
,
getSize
,
getToolkit
,
getTreeLock
,
gotFocus
,
handleEvent
,
hasFocus
,
hide
,
inside
,
isBackgroundSet
,
isCursorSet
,
isDisplayable
,
isEnabled
,
isFocusable
,
isFocusOwner
,
isFocusTraversable
,
isFontSet
,
isForegroundSet
,
isLightweight
,
isMaximumSizeSet
,
isMinimumSizeSet
,
isPreferredSizeSet
,
isShowing
,
isValid
,
isVisible
,
keyDown
,
keyUp
,
list
,
list
,
list
,
location
,
lostFocus
,
mouseDown
,
mouseDrag
,
mouseEnter
,
mouseExit
,
mouseMove
,
mouseUp
,
move
,
nextFocus
,
paintAll
,
postEvent
,
prepareImage
,
prepareImage
,
processComponentEvent
,
processFocusEvent
,
processHierarchyBoundsEvent
,
processHierarchyEvent
,
processInputMethodEvent
,
processMouseWheelEvent
,
remove
,
removeComponentListener
,
removeFocusListener
,
removeHierarchyBoundsListener
,
removeHierarchyListener
,
removeInputMethodListener
,
removeKeyListener
,
removeMouseListener
,
removeMouseMotionListener
,
removeMouseWheelListener
,
removePropertyChangeListener
,
removePropertyChangeListener
,
repaint
,
repaint
,
repaint
,
resize
,
resize
,
setBounds
,
setBounds
,
setComponentOrientation
,
setCursor
,
setDropTarget
,
setFocusable
,
setFocusTraversalKeysEnabled
,
setIgnoreRepaint
,
setLocale
,
setLocation
,
setLocation
,
setName
,
setSize
,
setSize
,
show
,
show
,
size
,
toString
,
transferFocus
,
transferFocusUpCycle
|
BORDER_PAINTED_FLAT_CHANGED_PROPERTY
public static final String BORDER_PAINTED_FLAT_CHANGED_PROPERTY
-
Identifies a change to the flat property.
-
See Also:
-
Constant Field Values
JCheckBox
public JCheckBox()
-
Creates an initially unselected check box button with no text, no icon.
JCheckBox
public JCheckBox(Icon icon)
-
Creates an initially unselected check box with an icon.
-
Parameters:
-
icon - the Icon image to display
JCheckBox
public JCheckBox(Icon icon,
boolean selected)
-
Creates a check box with an icon and specifies whether or not it is initially selected.
-
Parameters:
-
icon - the Icon image to display
-
selected - a boolean value indicating the initial selection state. If true the check box is selected
JCheckBox
public JCheckBox(String text)
-
Creates an initially unselected check box with text.
-
Parameters:
-
text - the text of the check box.
JCheckBox
public JCheckBox(Action a)
-
Creates a check box where properties are taken from the Action supplied.
-
Since:
-
1.3
JCheckBox
public JCheckBox(String text,
boolean selected)
-
Creates a check box with text and specifies whether or not it is initially selected.
-
Parameters:
-
text - the text of the check box.
-
selected - a boolean value indicating the initial selection state. If true the check box is selected
JCheckBox
public JCheckBox(String text,
Icon icon)
-
Creates an initially unselected check box with the specified text and icon.
-
Parameters:
-
text - the text of the check box.
-
icon - the Icon image to display
JCheckBox
public JCheckBox(String text,
Icon icon,
boolean selected)
-
Creates a check box with text and icon, and specifies whether or not it is initially selected.
-
Parameters:
-
text - the text of the check box.
-
icon - the Icon image to display
-
selected - a boolean value indicating the initial selection state. If true the check box is selected
setBorderPaintedFlat
public void setBorderPaintedFlat(boolean b)
-
Sets the borderPaintedFlat property, which gives a hint to the look and feel as to the appearance of the check box border. This is usually set to true when a JCheckBox instance is used as a renderer in a component such as a JTable or JTree. The default value for the borderPaintedFlat property is false. This method fires a property changed event. Some look and feels might not implement flat borders; they will ignore this property.
-
-
-
Parameters:
-
b - true requests that the border be painted flat; false requests normal borders
-
See Also:
-
isBorderPaintedFlat()
isBorderPaintedFlat
public boolean isBorderPaintedFlat()
-
Gets the value of the borderPaintedFlat property.
-
-
-
Returns:
-
the value of the borderPaintedFlat property
-
See Also:
-
setBorderPaintedFlat(boolean)
updateUI
public void updateUI()
-
Resets the UI property to a value from the current look and feel.
-
-
Overrides:
-
updateUI
in class
JToggleButton
-
-
See Also:
-
JComponent.updateUI()
getUIClassID
public String getUIClassID()
-
Returns a string that specifies the name of the L&F class that renders this component.
-
-
Overrides:
-
getUIClassID
in class
JToggleButton
-
-
Returns:
-
the string "CheckBoxUI"
-
See Also:
-
JComponent.getUIClassID()
,
UIDefaults.getUI(javax.swing.JComponent)
configurePropertiesFromAction
![](../../diffpics/oold.gif)
protected void ![](../../diffpics/oold.gif)
configurePropertiesFromAction ![](../../diffpics/oold.gif)
( ![](../../diffpics/oold.gif)
Action![](../../diffpics/oold.gif)
a)
-
Factory method which sets the ActionEvent source's properties according to values from the Action instance. The properties which are set may differ for subclasses. By default, the properties which get set are Text, Mnemonic, Enabled, ActionCommand, and ToolTipText.
-
-
Overrides:
-
configurePropertiesFromAction
in class
AbstractButton
-
-
Parameters:
-
a - the Action from which to get the properties, or null
-
Since:
-
1.3
-
See Also:
-
Action
,
AbstractButton.setAction(javax.swing.Action)
createActionPropertyChangeListener
![](../../diffpics/oold.gif)
protected ![](../../diffpics/oold.gif)
PropertyChangeListener![](../../diffpics/oold.gif)
createActionPropertyChangeListener ![](../../diffpics/oold.gif)
( ![](../../diffpics/oold.gif)
Action![](../../diffpics/oold.gif)
a)
-
Factory method which creates the PropertyChangeListener used to update the ActionEvent source as properties change on its Action instance. Subclasses may override this in order to provide their own PropertyChangeListener if the set of properties which should be kept up to date differs from the default properties (Text, Icon, Enabled, ToolTipText). Note that PropertyChangeListeners should avoid holding strong references to the ActionEvent source, as this may hinder garbage collection of the ActionEvent source and all components in its containment hierarchy.
-
-
Overrides:
-
createActionPropertyChangeListener
in class
AbstractButton
-
-
Parameters:
-
a - the new action for the button
-
Since:
-
1.3
-
See Also:
-
Action
,
AbstractButton.setAction(javax.swing.Action)
paramString
protected String paramString()
-
Returns a string representation of this JCheckBox. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not be null. specific new aspects of the JFC components.
-
-
Overrides:
-
paramString
in class
JToggleButton
-
-
Returns:
-
a string representation of this JCheckBox.
getAccessibleContext
public AccessibleContext getAccessibleContext()
-
Gets the AccessibleContext associated with this JCheckBox. For JCheckBoxes, the AccessibleContext takes the form of an AccessibleJCheckBox. A new AccessibleJCheckBox instance is created if necessary.
-
-
Specified by:
-
getAccessibleContext
in interface
Accessible
-
Overrides:
-
getAccessibleContext
in class
JToggleButton
-
-
Returns:
-
an AccessibleJCheckBox that serves as the AccessibleContext of this JCheckBox