java.lang.Object
- java.awt.Component
- - java.awt.Container
  - - javax.swing.JComponent
    - - javax.swing.JSeparator

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, Accessible, SwingConstants

Direct Known Subclasses:

JPopupMenu.Separator, JToolBar.Separator
```
@JavaBean(defaultProperty="UI",
          description="A divider between menu items.")
public class JSeparator
extends JComponent
implements SwingConstants, Accessible
```
JSeparator provides a general purpose component for implementing divider lines - most commonly used as a divider between menu items that breaks them up into logical groupings. Instead of using JSeparator directly, you can use the JMenu or JPopupMenu addSeparator method to create and add a separator. JSeparators may also be used elsewhere in a GUI wherever a visual divider is useful.
For more information and examples see How to Use Menus, a section in The Java Tutorial.
Warning: Swing is not thread safe. For more information see Swing's Threading Policy.
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™ has been added to the java.beans package. Please see XMLEncoder.

Since:

1.2

See Also:

Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type Class Description

protected class JSeparator.AccessibleJSeparator
This class implements accessibility support for the JSeparator class.
- Nested classes/interfaces declared in class javax.swing.JComponent
  JComponent.AccessibleJComponent
- Nested classes/interfaces declared in class java.awt.Container
  Container.AccessibleAWTContainer
- Nested classes/interfaces declared in class java.awt.Component
  Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary
- Fields declared in class javax.swing.JComponent
  listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW
- Fields declared in class java.awt.Component
  accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
- Fields declared in interface java.awt.image.ImageObserver
  ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH
- Fields declared in 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

Constructors
Constructor	Description
`JSeparator()`	Creates a new horizontal separator.
`JSeparator(int orientation)`	Creates a new separator with the specified horizontal or vertical orientation.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`AccessibleContext`	`getAccessibleContext()`	Gets the AccessibleContext associated with this JSeparator.
`int`	`getOrientation()`	Returns the orientation of this separator.
`SeparatorUI`	`getUI()`	Returns the L&F object that renders this component.
`String`	`getUIClassID()`	Returns the name of the L&F class that renders this component.
`protected String`	`paramString()`	Returns a string representation of this `JSeparator`.
`void`	`setOrientation(int orientation)`	Sets the orientation of the separator.
`void`	`setUI(SeparatorUI ui)`	Sets the L&F object that renders this component.
`void`	`updateUI()`	Resets the UI property to a value from the current look and feel.

Methods declared in class javax.swing.JComponent
addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, 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, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, 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, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update

Methods declared in class java.awt.Container
add, add, add, add, add, addContainerListener, addImpl, 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, setLayout, transferFocusDownCycle, validate, validateTree

Methods declared in 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, 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, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, imageUpdate, 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, requestFocus, requestFocus, requestFocusInWindow, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setMixingCutoutShape, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle

Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - JSeparator
```
public JSeparator()
```
    Creates a new horizontal separator.
  - JSeparator
```
public JSeparator(int orientation)
```
    Creates a new separator with the specified horizontal or vertical orientation.
    
    Parameters:
    
    orientation - an integer specifying SwingConstants.HORIZONTAL or SwingConstants.VERTICAL
    
    Throws:
    
    IllegalArgumentException - if orientation is neither SwingConstants.HORIZONTAL nor SwingConstants.VERTICAL
- Method Detail
  - getUI
```
public SeparatorUI getUI()
```
    Returns the L&F object that renders this component.
    
    Overrides:
    
    getUI in class JComponent
    
    Returns:
    
    the SeparatorUI object that renders this component
  - setUI
```
@BeanProperty(hidden=true,
              visualUpdate=true,
              description="The UI object that implements the Component\'s LookAndFeel.")
public void setUI(SeparatorUI ui)
```
    Sets the L&F object that renders this component.
    
    Parameters:
    
    ui - the SeparatorUI L&F object
    
    See Also:
    
    UIDefaults.getUI(javax.swing.JComponent)
  - updateUI
```
public void updateUI()
```
    Resets the UI property to a value from the current look and feel.
    
    Overrides:
    
    updateUI in class JComponent
    
    See Also:
    
    JComponent.updateUI()
  - getUIClassID
```
@BeanProperty(bound=false)
public String getUIClassID()
```
    Returns the name of the L&F class that renders this component.
    
    Overrides:
    
    getUIClassID in class JComponent
    
    Returns:
    
    the string "SeparatorUI"
    
    See Also:
    
    JComponent.getUIClassID(), UIDefaults.getUI(javax.swing.JComponent)
  - getOrientation
```
public int getOrientation()
```
    Returns the orientation of this separator.
    
    Returns:
    
    The value of the orientation property, one of the following constants defined in SwingConstants: VERTICAL, or HORIZONTAL.
    
    See Also:
    
    SwingConstants, setOrientation(int)
  - setOrientation
```
@BeanProperty(preferred=true,
              visualUpdate=true,
              enumerationValues={"SwingConstants.HORIZONTAL","SwingConstants.VERTICAL"},
              description="The orientation of the separator.")
public void setOrientation(int orientation)
```
    Sets the orientation of the separator. The default value of this property is HORIZONTAL.
    
    Parameters:
    
    orientation - either SwingConstants.HORIZONTAL or SwingConstants.VERTICAL
    
    Throws:
    
    IllegalArgumentException - if orientation is neither SwingConstants.HORIZONTAL nor SwingConstants.VERTICAL
    
    See Also:
    
    SwingConstants, getOrientation()
  - paramString
```
protected String paramString()
```
    Returns a string representation of this JSeparator. 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.
    
    Overrides:
    
    paramString in class JComponent
    
    Returns:
    
    a string representation of this JSeparator
  - getAccessibleContext
```
@BeanProperty(bound=false)
public AccessibleContext getAccessibleContext()
```
    Gets the AccessibleContext associated with this JSeparator. For separators, the AccessibleContext takes the form of an AccessibleJSeparator. A new AccessibleJSeparator instance is created if necessary.
    
    Specified by:
    
    getAccessibleContext in interface Accessible
    
    Overrides:
    
    getAccessibleContext in class Component
    
    Returns:
    
    an AccessibleJSeparator that serves as the AccessibleContext of this JSeparator

Class JSeparator

Nested Class Summary

Nested classes/interfaces declared in class javax.swing.JComponent

Nested classes/interfaces declared in class java.awt.Container

Nested classes/interfaces declared in class java.awt.Component

Field Summary

Fields declared in class javax.swing.JComponent

Fields declared in class java.awt.Component

Fields declared in interface java.awt.image.ImageObserver

Fields declared in interface javax.swing.SwingConstants

Constructor Summary

Method Summary

Methods declared in class javax.swing.JComponent

Methods declared in class java.awt.Container

Methods declared in class java.awt.Component

Methods declared in class java.lang.Object

Constructor Detail

JSeparator

JSeparator

Method Detail

getUI

setUI

updateUI

getUIClassID

getOrientation

setOrientation

paramString

getAccessibleContext