JavaTM 2 Platform Std. Ed. v1.4.2
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:
- Accessible, ImageObserver, ItemSelectable, MenuContainer, Serializable, 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.
For the keyboard keys used by this component in the standard Look and
Feel (L&F) renditions, see the
JCheckBox key assignments.
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 JavaBeansTM
has been added to the java.beans package.
Please see XMLEncoder .
- See Also:
JRadioButton
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 |
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. |
Methods inherited from class javax.swing.AbstractButton |
addActionListener, addChangeListener, addItemListener, checkHorizontalKey, checkVerticalKey, createActionListener, createChangeListener, createItemListener, doClick, doClick, fireActionPerformed, fireItemStateChanged, fireStateChanged, getAction, getActionCommand, getActionListeners, getChangeListeners, getDisabledIcon, getDisabledSelectedIcon, getDisplayedMnemonicIndex, 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, setAction, setActionCommand, setBorderPainted, setContentAreaFilled, setDisabledIcon, setDisabledSelectedIcon, setDisplayedMnemonicIndex, setEnabled, setFocusPainted, setHorizontalAlignment, setHorizontalTextPosition, setIcon, setIconTextGap, setLabel, setMargin, setMnemonic, setMnemonic, setModel, setMultiClickThreshhold, setPressedIcon, setRolloverEnabled, setRolloverIcon, setRolloverSelectedIcon, setSelected, setSelectedIcon, setText, setUI, setVerticalAlignment, setVerticalTextPosition |
Methods inherited from class javax.swing.JComponent |
addAncestorListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBorder, getBounds, getClientProperty, getComponentGraphics, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getGraphics, getHeight, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPreferredSize, getPropertyChangeListeners, getPropertyChangeListeners, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isPreferredSizeSet, isRequestFocusEnabled, isValidateRoot, paint, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setFont, setForeground, 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, addImpl, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setLayout, 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, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMouseWheelListeners, getName, getParent, getPeer, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, 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, processMouseEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, 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 displayselected - 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 displayselected - 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
protected void configurePropertiesFromAction(Action 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
protected PropertyChangeListener createActionPropertyChangeListener(Action 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
Copyright 2003 Sun Microsystems, Inc. All rights reserved
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