Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class JSlider - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

Overview

Package

Class

Use

Tree

Deprecated

Index

Help

Java^TM 2 Platform
Standard Edition

PREV CLASS NEXT CLASS

FRAMES NO FRAMES

SUMMARY: INNER | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

javax.swing
Class JSlider

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--javax.swing.JComponent
                    |
                    +--javax.swing.JSlider

public class JSlider
extends JComponent
implements SwingConstants, Accessible

A component that lets the user graphically select a value by slding a knob within a bounded interval. The slider can show both major tick marks and minor tick marks between them. The number of values between the tick marks is controlled with setMajorTickSpacing and setMinorTickSpacing.

For the keyboard keys used by this component in the standard Look and Feel (L&F) renditions, see the JSlider 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. A future release of Swing will provide support for long term persistence.

See Also:: Serialized Form

Inner Class Summary

protected class JSlider.AccessibleJSlider
          The class used to obtain the accessible role for this object.

Inner classes inherited from class javax.swing.JComponent

JComponent.AccessibleJComponent

Field Summary

protected ChangeEvent changeEvent
          Only one ChangeEvent is needed per slider instance since the event's only (read-only) state is the source property.

protected ChangeListener changeListener
          The changeListener (no suffix) is the listener we add to the Sliders model.

protected int majorTickSpacing
          The number of values between the major tick marks -- the larger marks that break up the minor tick marks.

protected int minorTickSpacing
          The number of values between the minor tick marks -- the smaller marks that occur between the major tick marks.

protected int orientation


protected BoundedRangeModel sliderModel
          The data model that handles the numeric maximum value, minimum value, and current-position value for the slider.

protected boolean snapToTicks
          If true, the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob.

Fields inherited from class javax.swing.JComponent

accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface javax.swing.SwingConstants

BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NORTH, NORTH_EAST, NORTH_WEST, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST

Constructor Summary

JSlider()
          Creates a horizontal slider with the range 0 to 100 and an intitial value of 50.

JSlider(BoundedRangeModel brm)
          Creates a horizontal slider using the specified BoundedRangeModel.

JSlider(int orientation)
          Creates a slider using the specified orientation with the range 0 to 100 and an intitial value of 50.

JSlider(int min, int max)
          Creates a horizontal slider using the specified min and max with an intitial value of 50.

JSlider(int min, int max, int value)
          Creates a horizontal slider using the specified min, max and value.

JSlider(int orientation, int min, int max, int value)
          Creates a slider with the specified orientation and the specified mimimum, maximum, and initial values.

Method Summary

void addChangeListener(ChangeListener l)
          Adds a ChangeListener to the slider.

protected ChangeListener createChangeListener()
          Subclasses that want to handle model ChangeEvents differently can override this method to return their own ChangeListener implementation.

Hashtable createStandardLabels(int increment)
          Creates a hashtable that will draw text labels starting at the slider minimum using the increment specified.

Hashtable createStandardLabels(int increment, int start)
          Creates a hashtable that will draw text labels starting at the start point specified using the increment specified.

protected void fireStateChanged()
          Send a ChangeEvent, whose source is this Slider, to each listener.

AccessibleContext getAccessibleContext()
          Get the AccessibleContext associated with this JComponent

int getExtent()
          Returns the "extent" -- the range of values "covered" by the knob.

boolean getInverted()
          Returns true if the value-range shown for the slider is reversed, with the maximum value at the left end of a horizontal slider or at the bottom of a vertical one.

Dictionary getLabelTable()
          Returns the dictionary of what labels to draw at which values.

int getMajorTickSpacing()
          This method returns the major tick spacing.

int getMaximum()
          Returns the maximum value supported by the slider.

int getMinimum()
          Returns the minimum value supported by the slider.

int getMinorTickSpacing()
          This method returns the minor tick spacing.

BoundedRangeModel getModel()
          Returns data model that handles the sliders three fundamental properties: minimum, maximum, value.

int getOrientation()
          Return this slider's vertical or horizontal orientation.

boolean getPaintLabels()
          Tells if labels are to be painted.

boolean getPaintTicks()
          Tells if tick marks are to be painted.

boolean getPaintTrack()
          Tells if the track (area the slider slides in) is to be painted.

boolean getSnapToTicks()
          Returns true if the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob.

SliderUI getUI()
          Gets the UI object which implements the L&F for this component.

String getUIClassID()
          Returns the name of the L&F class that renders this component.

int getValue()
          Returns the sliders value.

boolean getValueIsAdjusting()
          True if the slider knob is being dragged.

protected String paramString()
          Returns a string representation of this JSlider.

void removeChangeListener(ChangeListener l)
          Removes a ChangeListener from the slider.

void setExtent(int extent)
          Sets the size of the range "covered" by the knob.

void setInverted(boolean b)
          Specify true to reverse the value-range shown for the slider so that the maximum value is at the left end of a horizontal slider or at the bottom of a vertical one.

void setLabelTable(Dictionary labels)
          Used to specify what label will be drawn at any given value.

void setMajorTickSpacing(int n)
          This method sets the major tick spacing.

void setMaximum(int maximum)
          Sets the models maximum property.

void setMinimum(int minimum)
          Sets the models minimum property.

void setMinorTickSpacing(int n)
          This method sets the minor tick spacing.

void setModel(BoundedRangeModel newModel)
          Sets the model that handles the sliders three fundamental properties: minimum, maximum, value.

void setOrientation(int orientation)
          Set the scrollbars orientation to either VERTICAL or HORIZONTAL.

void setPaintLabels(boolean b)
          Determines whether labels are painted on the slider.

void setPaintTicks(boolean b)
          Determines whether tick marks are painted on the slider.

void setPaintTrack(boolean b)
          Determines whether the track is painted on the slider.

void setSnapToTicks(boolean b)
          Specifying true makes the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob.

void setUI(SliderUI ui)
          Sets the UI object which implements the L&F for this component.

void setValue(int n)
          Sets the sliders current value.

void setValueIsAdjusting(boolean b)
          Sets the models valueIsAdjusting property.

protected void updateLabelUIs()
          Called internally to replace the label UIs with the latest versions from the UIFactory when the UIFactory notifies us via updateUI that the L&F has changed.

void updateUI()
          Notification from the UIFactory that the L&F has changed.

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getAlignmentX, getAlignmentY, getAutoscrolls, getBorder, getBounds, getClientProperty, getComponentGraphics, getConditionForKeyStroke, getDebugGraphicsOptions, getGraphics, getHeight, getInsets, getInsets, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getVisibleRect, getWidth, getX, getY, grabFocus, hasFocus, isDoubleBuffered, isFocusCycleRoot, isFocusTraversable, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, processComponentKeyEvent, processFocusEvent, processKeyEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setDebugGraphicsOptions, setDoubleBuffered, setEnabled, setFont, setForeground, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setUI, setVisible, unregisterKeyboardAction, update

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getLayout, insets, invalidate, isAncestorOf, layout, list, list, locate, minimumSize, paintComponents, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setCursor, setLayout, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, getBackground, getBounds, getColorModel, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getInputContext, getInputMethodRequests, getLocale, getLocation, getLocationOnScreen, getName, getParent, getPeer, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hide, imageUpdate, inside, isDisplayable, isEnabled, isLightweight, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processInputMethodEvent, processMouseEvent, remove, removeComponentListener, removeFocusListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setDropTarget, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

sliderModel

protected BoundedRangeModel sliderModel

The data model that handles the numeric maximum value, minimum value, and current-position value for the slider.

majorTickSpacing

protected int majorTickSpacing

The number of values between the major tick marks -- the larger marks that break up the minor tick marks.

minorTickSpacing

protected int minorTickSpacing

The number of values between the minor tick marks -- the smaller marks that occur between the major tick marks.

See Also:: setMinorTickSpacing(int)

snapToTicks

protected boolean snapToTicks

If true, the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob.

See Also:: setSnapToTicks(boolean)

orientation

protected int orientation

See Also:: setOrientation(int)

changeListener

protected ChangeListener changeListener

The changeListener (no suffix) is the listener we add to the Sliders model. By default this listener just forwards events to ChangeListeners (if any) added directly to the slider.

See Also:: addChangeListener(javax.swing.event.ChangeListener), createChangeListener()

changeEvent

protected transient ChangeEvent changeEvent

Only one ChangeEvent is needed per slider instance since the event's only (read-only) state is the source property. The source of events generated here is always "this". The event is lazily created the first time that an event notification is fired.

See Also:: fireStateChanged()

Constructor Detail

JSlider

public JSlider()

Creates a horizontal slider with the range 0 to 100 and an intitial value of 50.

JSlider

public JSlider(int orientation)

Creates a slider using the specified orientation with the range 0 to 100 and an intitial value of 50.

JSlider

public JSlider(int min,
               int max)

Creates a horizontal slider using the specified min and max with an intitial value of 50.

JSlider

public JSlider(int min,
               int max,
               int value)

Creates a horizontal slider using the specified min, max and value.

JSlider

public JSlider(int orientation,
               int min,
               int max,
               int value)

Creates a slider with the specified orientation and the specified mimimum, maximum, and initial values.

Throws:: IllegalArgumentException - if orientation is not one of VERTICAL, HORIZONTAL
See Also:: setOrientation(int), setMinimum(int), setMaximum(int), setValue(int)

JSlider

public JSlider(BoundedRangeModel brm)

Creates a horizontal slider using the specified BoundedRangeModel.

Method Detail

getUI

public SliderUI getUI()

Gets the UI object which implements the L&F for this component.

Returns:: the SliderUI object that implements the Slider L&F

setUI

public void setUI(SliderUI ui)

Sets the UI object which implements the L&F for this component.

Parameters:: ui - the SliderUI L&F object
See Also:: UIDefaults.getUI(javax.swing.JComponent)

updateUI

public void updateUI()

Notification from the UIFactory that the L&F has changed. Called to replace the UI with the latest version from the default UIFactory.

Overrides:: updateUI in class JComponent

See Also:: JComponent.updateUI()

getUIClassID

public String getUIClassID()

Returns the name of the L&F class that renders this component.

Overrides:: getUIClassID in class JComponent

Returns:: "SliderUI"
See Also:: JComponent.getUIClassID(), UIDefaults.getUI(javax.swing.JComponent)

createChangeListener

protected ChangeListener createChangeListener()

Subclasses that want to handle model ChangeEvents differently can override this method to return their own ChangeListener implementation. The default ChangeListener just forwards ChangeEvents to the ChangeListeners added directly to the slider.

See Also:: fireStateChanged()

addChangeListener

public void addChangeListener(ChangeListener l)

Adds a ChangeListener to the slider.

Parameters:: l - the ChangeListener to add
See Also:: fireStateChanged(), removeChangeListener(javax.swing.event.ChangeListener)

removeChangeListener

public void removeChangeListener(ChangeListener l)

Removes a ChangeListener from the slider.

Parameters:: l - the ChangeListener to remove
See Also:: fireStateChanged(), addChangeListener(javax.swing.event.ChangeListener)

fireStateChanged

protected void fireStateChanged()

Send a ChangeEvent, whose source is this Slider, to each listener. This method method is called each time a ChangeEvent is received from the model.

See Also:: addChangeListener(javax.swing.event.ChangeListener), EventListenerList

getModel

public BoundedRangeModel getModel()

Returns data model that handles the sliders three fundamental properties: minimum, maximum, value.

See Also:: setModel(javax.swing.BoundedRangeModel)

setModel

public void setModel(BoundedRangeModel newModel)

Sets the model that handles the sliders three fundamental properties: minimum, maximum, value.

See Also:: getModel()

getValue

public int getValue()

Returns the sliders value.

Returns:: the models value property
See Also:: setValue(int)

setValue

public void setValue(int n)

Sets the sliders current value. This method just forwards the value to the model.

See Also:: getValue()

getMinimum

public int getMinimum()

Returns the minimum value supported by the slider.

Returns:: the value of the models minimum property
See Also:: setMinimum(int)

setMinimum

public void setMinimum(int minimum)

Sets the models minimum property.

See Also:: getMinimum(), BoundedRangeModel.setMinimum(int)

getMaximum

public int getMaximum()

Returns the maximum value supported by the slider.

Returns:: the value of the models maximum property
See Also:: setMaximum(int)

setMaximum

public void setMaximum(int maximum)

Sets the models maximum property.

See Also:: getMaximum(), BoundedRangeModel.setMaximum(int)

getValueIsAdjusting

public boolean getValueIsAdjusting()

True if the slider knob is being dragged.

Returns:: the value of the models valueIsAdjusting property
See Also:: setValueIsAdjusting(boolean)

setValueIsAdjusting

public void setValueIsAdjusting(boolean b)

Sets the models valueIsAdjusting property. Slider look and feel implementations should set this property to true when a knob drag begins, and to false when the drag ends. The slider model will not generate ChangeEvents while valueIsAdjusting is true.

See Also:: getValueIsAdjusting(), BoundedRangeModel.setValueIsAdjusting(boolean)

getExtent

public int getExtent()

Returns the "extent" -- the range of values "covered" by the knob.

Returns:: an int representing the extent
See Also:: setExtent(int), BoundedRangeModel.getExtent()

setExtent

public void setExtent(int extent)

Sets the size of the range "covered" by the knob. Most look and feel implementations will change the value by this amount if the user clicks on either side of the knob.

See Also:: getExtent(), BoundedRangeModel.setExtent(int)

getOrientation

public int getOrientation()

Return this slider's vertical or horizontal orientation.

Returns:: VERTICAL or HORIZONTAL
See Also:: setOrientation(int)

setOrientation

public void setOrientation(int orientation)

Set the scrollbars orientation to either VERTICAL or HORIZONTAL.

Throws:: IllegalArgumentException - if orientation is not one of VERTICAL, HORIZONTAL
See Also:: getOrientation()

getLabelTable

public Dictionary getLabelTable()

Returns the dictionary of what labels to draw at which values.

Returns:: the Dictionary containing labels and where to draw them

setLabelTable

public void setLabelTable(Dictionary labels)

Used to specify what label will be drawn at any given value. The key-value pairs are of this format: { Integer value, java.awt.Component label }

See Also:: createStandardLabels(int), getLabelTable()

updateLabelUIs

protected void updateLabelUIs()

Called internally to replace the label UIs with the latest versions from the UIFactory when the UIFactory notifies us via updateUI that the L&F has changed.

See Also:: JComponent.updateUI()

createStandardLabels

public Hashtable createStandardLabels(int increment)

Creates a hashtable that will draw text labels starting at the slider minimum using the increment specified. If you call createStandardLabels( 10 ) and the slider minimum is zero, then it will make labels for the values 0, 10, 20, 30, and so on.

See Also:: setLabelTable(java.util.Dictionary)

createStandardLabels

public Hashtable createStandardLabels(int increment,
                                      int start)

Creates a hashtable that will draw text labels starting at the start point specified using the increment specified. If you call createStandardLabels( 10, 2 ), then it will make labels for the values 2, 12, 22, 32, and so on.

See Also:: setLabelTable(java.util.Dictionary)

getInverted

public boolean getInverted()

Returns true if the value-range shown for the slider is reversed, with the maximum value at the left end of a horizontal slider or at the bottom of a vertical one.

Returns:: true if the slider values are reversed from their normal order

setInverted

public void setInverted(boolean b)

Specify true to reverse the value-range shown for the slider so that the maximum value is at the left end of a horizontal slider or at the bottom of a vertical one. Specify false to put the value range in the normal order.

Parameters:: b - true to reverse the slider values from their normal order

getMajorTickSpacing

public int getMajorTickSpacing()

This method returns the major tick spacing. The number that is returned represents the distance, measured in values, between each major tick mark. If you have a slider with a range from 0 to 50 and the major tick spacing is set to 10, you will get major ticks next to the following values: 0, 10, 20, 30, 40, 50.

Returns:: the number of values between major ticks
See Also:: setMajorTickSpacing(int)

setMajorTickSpacing

public void setMajorTickSpacing(int n)

This method sets the major tick spacing. The number that is passed-in represents the distance, measured in values, between each major tick mark. If you have a slider with a range from 0 to 50 and the major tick spacing is set to 10, you will get major ticks next to the following values: 0, 10, 20, 30, 40, 50.

See Also:: getMajorTickSpacing()

getMinorTickSpacing

public int getMinorTickSpacing()

This method returns the minor tick spacing. The number that is returned represents the distance, measured in values, between each minor tick mark. If you have a slider with a range from 0 to 50 and the minor tick spacing is set to 10, you will get minor ticks next to the following values: 0, 10, 20, 30, 40, 50.

Returns:: the number of values between minor ticks
See Also:: getMinorTickSpacing()

setMinorTickSpacing

public void setMinorTickSpacing(int n)

This method sets the minor tick spacing. The number that is passed-in represents the distance, measured in values, between each minor tick mark. If you have a slider with a range from 0 to 50 and the minor tick spacing is set to 10, you will get minor ticks next to the following values: 0, 10, 20, 30, 40, 50.

See Also:: getMinorTickSpacing()

getSnapToTicks

public boolean getSnapToTicks()

Returns true if the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob.

Returns:: true if the value snaps to the nearest tick mark, else false
See Also:: setSnapToTicks(boolean)

setSnapToTicks

public void setSnapToTicks(boolean b)

Specifying true makes the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob.

Parameters:: b - true to snap the knob to the nearest tick mark
See Also:: getSnapToTicks()

getPaintTicks

public boolean getPaintTicks()

Tells if tick marks are to be painted.

Returns:: true if tick marks are painted, else false
See Also:: setPaintTicks(boolean)

setPaintTicks

public void setPaintTicks(boolean b)

Determines whether tick marks are painted on the slider.

See Also:: getPaintTicks()

getPaintTrack

public boolean getPaintTrack()

Tells if the track (area the slider slides in) is to be painted.

Returns:: true if track is painted, else false
See Also:: setPaintTrack(boolean)

setPaintTrack

public void setPaintTrack(boolean b)

Determines whether the track is painted on the slider.

See Also:: getPaintTrack()

getPaintLabels

public boolean getPaintLabels()

Tells if labels are to be painted.

Returns:: true if labels are painted, else false
See Also:: setPaintLabels(boolean)

setPaintLabels

public void setPaintLabels(boolean b)

Determines whether labels are painted on the slider.

See Also:: getPaintLabels()

paramString

protected String paramString()

Returns a string representation of this JSlider. 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 JSlider.

getAccessibleContext

public AccessibleContext getAccessibleContext()

Get the AccessibleContext associated with this JComponent

Specified by:: getAccessibleContext in interface Accessible
Overrides:: getAccessibleContext in class JComponent

Returns:: the AccessibleContext of this JComponent

Overview

Package

Class

Use

Tree

Deprecated

Index

Help

Java^TM 2 Platform
Standard Edition

PREV CLASS NEXT CLASS

FRAMES NO FRAMES

SUMMARY: INNER | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

Submit a bug or feature
Java, Java 2D, and JDBC are a trademarks or registered trademarks of Sun Microsystems, Inc. in the US and other countries.
Copyright 1993-1999 Sun Microsystems, Inc. 901 San Antonio Road,
Palo Alto, California, 94303, U.S.A. All Rights Reserved.

Inner Class Summary
`protected class`	`JSlider.AccessibleJSlider` The class used to obtain the accessible role for this object.

Field Summary
`protected ChangeEvent`	`changeEvent` Only one ChangeEvent is needed per slider instance since the event's only (read-only) state is the source property.
`protected ChangeListener`	`changeListener` The changeListener (no suffix) is the listener we add to the Sliders model.
`protected int`	`majorTickSpacing` The number of values between the major tick marks -- the larger marks that break up the minor tick marks.
`protected int`	`minorTickSpacing` The number of values between the minor tick marks -- the smaller marks that occur between the major tick marks.
`protected int`	`orientation`
`protected BoundedRangeModel`	`sliderModel` The data model that handles the numeric maximum value, minimum value, and current-position value for the slider.
`protected boolean`	`snapToTicks` If true, the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob.

Constructor Summary
`JSlider()` Creates a horizontal slider with the range 0 to 100 and an intitial value of 50.
`JSlider(BoundedRangeModel brm)` Creates a horizontal slider using the specified BoundedRangeModel.
`JSlider(int orientation)` Creates a slider using the specified orientation with the range 0 to 100 and an intitial value of 50.
`JSlider(int min, int max)` Creates a horizontal slider using the specified min and max with an intitial value of 50.
`JSlider(int min, int max, int value)` Creates a horizontal slider using the specified min, max and value.
`JSlider(int orientation, int min, int max, int value)` Creates a slider with the specified orientation and the specified mimimum, maximum, and initial values.

Method Summary
`void`	`addChangeListener(ChangeListener l)` Adds a ChangeListener to the slider.
`protected ChangeListener`	`createChangeListener()` Subclasses that want to handle model ChangeEvents differently can override this method to return their own ChangeListener implementation.
`Hashtable`	`createStandardLabels(int increment)` Creates a hashtable that will draw text labels starting at the slider minimum using the increment specified.
`Hashtable`	`createStandardLabels(int increment, int start)` Creates a hashtable that will draw text labels starting at the start point specified using the increment specified.
`protected void`	`fireStateChanged()` Send a ChangeEvent, whose source is this Slider, to each listener.
`AccessibleContext`	`getAccessibleContext()` Get the AccessibleContext associated with this JComponent
`int`	`getExtent()` Returns the "extent" -- the range of values "covered" by the knob.
`boolean`	`getInverted()` Returns true if the value-range shown for the slider is reversed, with the maximum value at the left end of a horizontal slider or at the bottom of a vertical one.
`Dictionary`	`getLabelTable()` Returns the dictionary of what labels to draw at which values.
`int`	`getMajorTickSpacing()` This method returns the major tick spacing.
`int`	`getMaximum()` Returns the maximum value supported by the slider.
`int`	`getMinimum()` Returns the minimum value supported by the slider.
`int`	`getMinorTickSpacing()` This method returns the minor tick spacing.
`BoundedRangeModel`	`getModel()` Returns data model that handles the sliders three fundamental properties: minimum, maximum, value.
`int`	`getOrientation()` Return this slider's vertical or horizontal orientation.
`boolean`	`getPaintLabels()` Tells if labels are to be painted.
`boolean`	`getPaintTicks()` Tells if tick marks are to be painted.
`boolean`	`getPaintTrack()` Tells if the track (area the slider slides in) is to be painted.
`boolean`	`getSnapToTicks()` Returns true if the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob.
`SliderUI`	`getUI()` Gets the UI object which implements the L&F for this component.
`String`	`getUIClassID()` Returns the name of the L&F class that renders this component.
`int`	`getValue()` Returns the sliders value.
`boolean`	`getValueIsAdjusting()` True if the slider knob is being dragged.
`protected String`	`paramString()` Returns a string representation of this JSlider.
`void`	`removeChangeListener(ChangeListener l)` Removes a ChangeListener from the slider.
`void`	`setExtent(int extent)` Sets the size of the range "covered" by the knob.
`void`	`setInverted(boolean b)` Specify true to reverse the value-range shown for the slider so that the maximum value is at the left end of a horizontal slider or at the bottom of a vertical one.
`void`	`setLabelTable(Dictionary labels)` Used to specify what label will be drawn at any given value.
`void`	`setMajorTickSpacing(int n)` This method sets the major tick spacing.
`void`	`setMaximum(int maximum)` Sets the models maximum property.
`void`	`setMinimum(int minimum)` Sets the models minimum property.
`void`	`setMinorTickSpacing(int n)` This method sets the minor tick spacing.
`void`	`setModel(BoundedRangeModel newModel)` Sets the model that handles the sliders three fundamental properties: minimum, maximum, value.
`void`	`setOrientation(int orientation)` Set the scrollbars orientation to either VERTICAL or HORIZONTAL.
`void`	`setPaintLabels(boolean b)` Determines whether labels are painted on the slider.
`void`	`setPaintTicks(boolean b)` Determines whether tick marks are painted on the slider.
`void`	`setPaintTrack(boolean b)` Determines whether the track is painted on the slider.
`void`	`setSnapToTicks(boolean b)` Specifying true makes the knob (and the data value it represents) resolve to the closest tick mark next to where the user positioned the knob.
`void`	`setUI(SliderUI ui)` Sets the UI object which implements the L&F for this component.
`void`	`setValue(int n)` Sets the sliders current value.
`void`	`setValueIsAdjusting(boolean b)` Sets the models valueIsAdjusting property.
`protected void`	`updateLabelUIs()` Called internally to replace the label UIs with the latest versions from the UIFactory when the UIFactory notifies us via `updateUI` that the L&F has changed.
`void`	`updateUI()` Notification from the UIFactory that the L&F has changed.

Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class JSlider - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

javax.swing Class JSlider

sliderModel

majorTickSpacing

minorTickSpacing

snapToTicks

orientation

changeListener

changeEvent

JSlider

JSlider

JSlider

JSlider

JSlider

JSlider

getUI

setUI

updateUI

getUIClassID

createChangeListener

addChangeListener

removeChangeListener

fireStateChanged

getModel

setModel

getValue

setValue

getMinimum

setMinimum

getMaximum

setMaximum

getValueIsAdjusting

setValueIsAdjusting

getExtent

setExtent

getOrientation

setOrientation

getLabelTable

setLabelTable

updateLabelUIs

createStandardLabels

createStandardLabels

getInverted

setInverted

getMajorTickSpacing

setMajorTickSpacing

getMinorTickSpacing

setMinorTickSpacing

getSnapToTicks

setSnapToTicks

getPaintTicks

setPaintTicks

getPaintTrack

setPaintTrack

getPaintLabels

setPaintLabels

paramString

getAccessibleContext

javax.swing
Class JSlider