JProgressBar

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

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, Accessible, SwingConstants
```
public class JProgressBar
extends JComponent
implements SwingConstants, Accessible
```
A component that visually displays the progress of some task. As the task progresses towards completion, the progress bar displays the task's percentage of completion. This percentage is typically represented visually by a rectangle which starts out empty and gradually becomes filled in as the task progresses. In addition, the progress bar can display a textual representation of this percentage.
JProgressBar uses a BoundedRangeModel as its data model, with the value property representing the "current" state of the task, and the minimum and maximum properties representing the beginning and end points, respectively.

To indicate that a task of unknown length is executing, you can put a progress bar into indeterminate mode. While the bar is in indeterminate mode, it animates constantly to show that work is occurring. As soon as you can determine the task's length and amount of progress, you should update the progress bar's value and switch it back to determinate mode.

Here is an example of creating a progress bar, where task is an object (representing some piece of work) which returns information about the progress of the task:
```
progressBar = new JProgressBar(0, task.getLengthOfTask());
progressBar.setValue(0);
progressBar.setStringPainted(true);
```
Here is an example of querying the current state of the task, and using the returned value to update the progress bar:
```
progressBar.setValue(task.getCurrent());
```
Here is an example of putting a progress bar into indeterminate mode, and then switching back to determinate mode once the length of the task is known:
```
progressBar = new JProgressBar();
...//when the task of (initially) unknown length begins:
progressBar.setIndeterminate(true);
...//do some work; get length of task...
progressBar.setMaximum(newLength);
progressBar.setValue(newValue);
progressBar.setIndeterminate(false);
```
For complete examples and further documentation see How to Monitor Progress, 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.
See Also:

BasicProgressBarUI, BoundedRangeModel, SwingWorker

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
`protected class`	`JProgressBar.AccessibleJProgressBar` This class implements accessibility support for the `JProgressBar` class.

Nested classes/interfaces inherited from class javax.swing.JComponent
JComponent.AccessibleJComponent

Nested classes/interfaces inherited from class java.awt.Container
Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class java.awt.Component
Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary

Fields

Modifier and Type	Field and Description
`protected ChangeEvent`	`changeEvent` Only one `ChangeEvent` is needed per instance since the event's only interesting property is the immutable source, which is the progress bar.
`protected ChangeListener`	`changeListener` Listens for change events sent by the progress bar's model, redispatching them to change-event listeners registered upon this progress bar.
`protected BoundedRangeModel`	`model` The object that holds the data for the progress bar.
`protected int`	`orientation` Whether the progress bar is horizontal or vertical.
`protected boolean`	`paintBorder` Whether to display a border around the progress bar.
`protected boolean`	`paintString` Whether to display a string of text on the progress bar.
`protected String`	`progressString` An optional string that can be displayed on the progress bar.

Fields inherited from class javax.swing.JComponent
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
accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

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

Constructors

Constructor and Description
`JProgressBar()` Creates a horizontal progress bar that displays a border but no progress string.
`JProgressBar(BoundedRangeModel newModel)` Creates a horizontal progress bar that uses the specified model to hold the progress bar's data.
`JProgressBar(int orient)` Creates a progress bar with the specified orientation, which can be either `SwingConstants.VERTICAL` or `SwingConstants.HORIZONTAL`.
`JProgressBar(int min, int max)` Creates a horizontal progress bar with the specified minimum and maximum.
`JProgressBar(int orient, int min, int max)` Creates a progress bar using the specified orientation, minimum, and maximum.

Method Summary

All Methods

Instance Methods

Concrete Methods
Modifier and Type	Method and Description
`void`	`addChangeListener(ChangeListener l)` Adds the specified `ChangeListener` to the progress bar.
`protected ChangeListener`	`createChangeListener()` Subclasses that want to handle change events from the model differently can override this to return an instance of a custom `ChangeListener` implementation.
`protected void`	`fireStateChanged()` Send a `ChangeEvent`, whose source is this `JProgressBar`, to all `ChangeListener`s that have registered interest in `ChangeEvent`s.
`AccessibleContext`	`getAccessibleContext()` Gets the `AccessibleContext` associated with this `JProgressBar`.
`ChangeListener[]`	`getChangeListeners()` Returns an array of all the `ChangeListener`s added to this progress bar with `addChangeListener`.
`int`	`getMaximum()` Returns the progress bar's `maximum` value from the `BoundedRangeModel`.
`int`	`getMinimum()` Returns the progress bar's `minimum` value from the `BoundedRangeModel`.
`BoundedRangeModel`	`getModel()` Returns the data model used by this progress bar.
`int`	`getOrientation()` Returns `SwingConstants.VERTICAL` or `SwingConstants.HORIZONTAL`, depending on the orientation of the progress bar.
`double`	`getPercentComplete()` Returns the percent complete for the progress bar.
`String`	`getString()` Returns a `String` representation of the current progress.
`ProgressBarUI`	`getUI()` Returns the look-and-feel object that renders this component.
`String`	`getUIClassID()` Returns the name of the look-and-feel class that renders this component.
`int`	`getValue()` Returns the progress bar's current `value` from the `BoundedRangeModel`.
`boolean`	`isBorderPainted()` Returns the `borderPainted` property.
`boolean`	`isIndeterminate()` Returns the value of the `indeterminate` property.
`boolean`	`isStringPainted()` Returns the value of the `stringPainted` property.
`protected void`	`paintBorder(Graphics g)` Paints the progress bar's border if the `borderPainted` property is `true`.
`protected String`	`paramString()` Returns a string representation of this `JProgressBar`.
`void`	`removeChangeListener(ChangeListener l)` Removes a `ChangeListener` from the progress bar.
`void`	`setBorderPainted(boolean b)` Sets the `borderPainted` property, which is `true` if the progress bar should paint its border.
`void`	`setIndeterminate(boolean newValue)` Sets the `indeterminate` property of the progress bar, which determines whether the progress bar is in determinate or indeterminate mode.
`void`	`setMaximum(int n)` Sets the progress bar's maximum value (stored in the progress bar's data model) to `n`.
`void`	`setMinimum(int n)` Sets the progress bar's minimum value (stored in the progress bar's data model) to `n`.
`void`	`setModel(BoundedRangeModel newModel)` Sets the data model used by the `JProgressBar`.
`void`	`setOrientation(int newOrientation)` Sets the progress bar's orientation to `newOrientation`, which must be `SwingConstants.VERTICAL` or `SwingConstants.HORIZONTAL`.
`void`	`setString(String s)` Sets the value of the progress string.
`void`	`setStringPainted(boolean b)` Sets the value of the `stringPainted` property, which determines whether the progress bar should render a progress string.
`void`	`setUI(ProgressBarUI ui)` Sets the look-and-feel object that renders this component.
`void`	`setValue(int n)` Sets the progress bar's current value to `n`.
`void`	`updateUI()` Resets the UI property to a value from the current look and feel.

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, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, 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, setEnabled, 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, 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 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, 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, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - orientation
```
protected int orientation
```
    Whether the progress bar is horizontal or vertical. The default is HORIZONTAL.
    
    See Also:
    
    setOrientation(int)
  - paintBorder
```
protected boolean paintBorder
```
    Whether to display a border around the progress bar. The default is true.
    
    See Also:
    
    setBorderPainted(boolean)
  - model
```
protected BoundedRangeModel model
```
    The object that holds the data for the progress bar.
    
    See Also:
    
    setModel(javax.swing.BoundedRangeModel)
  - progressString
```
protected String progressString
```
    An optional string that can be displayed on the progress bar. The default is null. Setting this to a non- null value does not imply that the string will be displayed. To display the string, paintString must be true.
    
    See Also:
    
    setString(java.lang.String), setStringPainted(boolean)
  - paintString
```
protected boolean paintString
```
    Whether to display a string of text on the progress bar. The default is false. Setting this to true causes a textual display of the progress to be rendered on the progress bar. If the progressString is null, the percentage of completion is displayed on the progress bar. Otherwise, the progressString is rendered on the progress bar.
    
    See Also:
    
    setStringPainted(boolean), setString(java.lang.String)
  - changeEvent
```
protected transient ChangeEvent changeEvent
```
    Only one ChangeEvent is needed per instance since the event's only interesting property is the immutable source, which is the progress bar. The event is lazily created the first time that an event notification is fired.
    
    See Also:
    
    fireStateChanged()
  - changeListener
```
protected ChangeListener changeListener
```
    Listens for change events sent by the progress bar's model, redispatching them to change-event listeners registered upon this progress bar.
    
    See Also:
    
    createChangeListener()
- Constructor Detail
  - JProgressBar
```
public JProgressBar()
```
    Creates a horizontal progress bar that displays a border but no progress string. The initial and minimum values are 0, and the maximum is 100.
    
    See Also:
    
    setOrientation(int), setBorderPainted(boolean), setStringPainted(boolean), setString(java.lang.String), setIndeterminate(boolean)
  - JProgressBar
```
public JProgressBar(int orient)
```
    Creates a progress bar with the specified orientation, which can be either SwingConstants.VERTICAL or SwingConstants.HORIZONTAL. By default, a border is painted but a progress string is not. The initial and minimum values are 0, and the maximum is 100.
    
    Parameters:
    
    orient - the desired orientation of the progress bar
    
    Throws:
    
    IllegalArgumentException - if orient is an illegal value
    
    See Also:
    
    setOrientation(int), setBorderPainted(boolean), setStringPainted(boolean), setString(java.lang.String), setIndeterminate(boolean)
  - JProgressBar
```
public JProgressBar(int min,
                    int max)
```
    Creates a horizontal progress bar with the specified minimum and maximum. Sets the initial value of the progress bar to the specified minimum. By default, a border is painted but a progress string is not.
    The BoundedRangeModel that holds the progress bar's data handles any issues that may arise from improperly setting the minimum, initial, and maximum values on the progress bar. See the BoundedRangeModel documentation for details.
    
    Parameters:
    
    min - the minimum value of the progress bar
    
    max - the maximum value of the progress bar
    
    See Also:
    
    BoundedRangeModel, setOrientation(int), setBorderPainted(boolean), setStringPainted(boolean), setString(java.lang.String), setIndeterminate(boolean)
  - JProgressBar
```
public JProgressBar(int orient,
                    int min,
                    int max)
```
    Creates a progress bar using the specified orientation, minimum, and maximum. By default, a border is painted but a progress string is not. Sets the initial value of the progress bar to the specified minimum.
    The BoundedRangeModel that holds the progress bar's data handles any issues that may arise from improperly setting the minimum, initial, and maximum values on the progress bar. See the BoundedRangeModel documentation for details.
    
    Parameters:
    
    orient - the desired orientation of the progress bar
    
    min - the minimum value of the progress bar
    
    max - the maximum value of the progress bar
    
    Throws:
    
    IllegalArgumentException - if orient is an illegal value
    
    See Also:
    
    BoundedRangeModel, setOrientation(int), setBorderPainted(boolean), setStringPainted(boolean), setString(java.lang.String), setIndeterminate(boolean)
  - JProgressBar
```
public JProgressBar(BoundedRangeModel newModel)
```
    Creates a horizontal progress bar that uses the specified model to hold the progress bar's data. By default, a border is painted but a progress string is not.
    
    Parameters:
    
    newModel - the data model for the progress bar
    
    See Also:
    
    setOrientation(int), setBorderPainted(boolean), setStringPainted(boolean), setString(java.lang.String), setIndeterminate(boolean)
- Method Detail
  - getOrientation
```
public int getOrientation()
```
    Returns SwingConstants.VERTICAL or SwingConstants.HORIZONTAL, depending on the orientation of the progress bar. The default orientation is SwingConstants.HORIZONTAL.
    
    Returns:
    
    HORIZONTAL or VERTICAL
    
    See Also:
    
    setOrientation(int)
  - setOrientation
```
public void setOrientation(int newOrientation)
```
    Sets the progress bar's orientation to newOrientation, which must be SwingConstants.VERTICAL or SwingConstants.HORIZONTAL. The default orientation is SwingConstants.HORIZONTAL.
    
    Parameters:
    
    newOrientation - HORIZONTAL or VERTICAL
    
    Throws:
    
    IllegalArgumentException - if newOrientation is an illegal value
    
    See Also:
    
    getOrientation()
  - isStringPainted
```
public boolean isStringPainted()
```
    Returns the value of the stringPainted property.
    
    Returns:
    
    the value of the stringPainted property
    
    See Also:
    
    setStringPainted(boolean), setString(java.lang.String)
  - setStringPainted
```
public void setStringPainted(boolean b)
```
    Sets the value of the stringPainted property, which determines whether the progress bar should render a progress string. The default is false, meaning no string is painted. Some look and feels might not support progress strings or might support them only when the progress bar is in determinate mode.
    
    Parameters:
    
    b - true if the progress bar should render a string
    
    See Also:
    
    isStringPainted(), setString(java.lang.String)
  - getString
```
public String getString()
```
    Returns a String representation of the current progress. By default, this returns a simple percentage String based on the value returned from getPercentComplete. An example would be the "42%". You can change this by calling setString.
    
    Returns:
    
    the value of the progress string, or a simple percentage string if the progress string is null
    
    See Also:
    
    setString(java.lang.String)
  - setString
```
public void setString(String s)
```
    Sets the value of the progress string. By default, this string is null, implying the built-in behavior of using a simple percent string. If you have provided a custom progress string and want to revert to the built-in behavior, set the string back to null.
    The progress string is painted only if the isStringPainted method returns true.
    
    Parameters:
    
    s - the value of the progress string
    
    See Also:
    
    getString(), setStringPainted(boolean), isStringPainted()
  - getPercentComplete
```
public double getPercentComplete()
```
    Returns the percent complete for the progress bar. Note that this number is between 0.0 and 1.0.
    
    Returns:
    
    the percent complete for this progress bar
  - isBorderPainted
```
public boolean isBorderPainted()
```
    Returns the borderPainted property.
    
    Returns:
    
    the value of the borderPainted property
    
    See Also:
    
    setBorderPainted(boolean)
  - setBorderPainted
```
public void setBorderPainted(boolean b)
```
    Sets the borderPainted property, which is true if the progress bar should paint its border. The default value for this property is true. Some look and feels might not implement painted borders; they will ignore this property.
    
    Parameters:
    
    b - true if the progress bar should paint its border; otherwise, false
    
    See Also:
    
    isBorderPainted()
  - paintBorder
```
protected void paintBorder(Graphics g)
```
    Paints the progress bar's border if the borderPainted property is true.
    
    Overrides:
    
    paintBorder in class JComponent
    
    Parameters:
    
    g - the Graphics context within which to paint the border
    
    See Also:
    
    JComponent.paint(java.awt.Graphics), JComponent.setBorder(javax.swing.border.Border), isBorderPainted(), setBorderPainted(boolean)
  - getUI
```
public ProgressBarUI getUI()
```
    Returns the look-and-feel object that renders this component.
    
    Returns:
    
    the ProgressBarUI object that renders this component
  - setUI
```
public void setUI(ProgressBarUI ui)
```
    Sets the look-and-feel object that renders this component.
    
    Parameters:
    
    ui - a ProgressBarUI 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
```
public String getUIClassID()
```
    Returns the name of the look-and-feel class that renders this component.
    
    Overrides:
    
    getUIClassID in class JComponent
    
    Returns:
    
    the string "ProgressBarUI"
    
    See Also:
    
    JComponent.getUIClassID(), UIDefaults.getUI(javax.swing.JComponent)
  - createChangeListener
```
protected ChangeListener createChangeListener()
```
    Subclasses that want to handle change events from the model differently can override this to return an instance of a custom ChangeListener implementation. The default ChangeListener simply calls the fireStateChanged method to forward ChangeEvents to the ChangeListeners that have been added directly to the progress bar.
    
    See Also:
    
    changeListener, fireStateChanged(), ChangeListener, BoundedRangeModel
  - addChangeListener
```
public void addChangeListener(ChangeListener l)
```
    Adds the specified ChangeListener to the progress bar.
    
    Parameters:
    
    l - the ChangeListener to add
  - removeChangeListener
```
public void removeChangeListener(ChangeListener l)
```
    Removes a ChangeListener from the progress bar.
    
    Parameters:
    
    l - the ChangeListener to remove
  - getChangeListeners
```
public ChangeListener[] getChangeListeners()
```
    Returns an array of all the ChangeListeners added to this progress bar with addChangeListener.
    
    Returns:
    
    all of the ChangeListeners added or an empty array if no listeners have been added
    
    Since:
    
    1.4
  - fireStateChanged
```
protected void fireStateChanged()
```
    Send a ChangeEvent, whose source is this JProgressBar, to all ChangeListeners that have registered interest in ChangeEvents. This method is called each time a ChangeEvent is received from the model.
    The event instance is created if necessary, and stored in changeEvent.
    
    See Also:
    
    addChangeListener(javax.swing.event.ChangeListener), EventListenerList
  - getModel
```
public BoundedRangeModel getModel()
```
    Returns the data model used by this progress bar.
    
    Returns:
    
    the BoundedRangeModel currently in use
    
    See Also:
    
    setModel(javax.swing.BoundedRangeModel), BoundedRangeModel
  - setModel
```
public void setModel(BoundedRangeModel newModel)
```
    Sets the data model used by the JProgressBar. Note that the BoundedRangeModel's extent is not used, and is set to 0.
    
    Parameters:
    
    newModel - the BoundedRangeModel to use
  - getValue
```
public int getValue()
```
    Returns the progress bar's current value from the BoundedRangeModel. The value is always between the minimum and maximum values, inclusive.
    
    Returns:
    
    the current value of the progress bar
    
    See Also:
    
    setValue(int), BoundedRangeModel.getValue()
  - getMinimum
```
public int getMinimum()
```
    Returns the progress bar's minimum value from the BoundedRangeModel.
    
    Returns:
    
    the progress bar's minimum value
    
    See Also:
    
    setMinimum(int), BoundedRangeModel.getMinimum()
  - getMaximum
```
public int getMaximum()
```
    Returns the progress bar's maximum value from the BoundedRangeModel.
    
    Returns:
    
    the progress bar's maximum value
    
    See Also:
    
    setMaximum(int), BoundedRangeModel.getMaximum()
  - setValue
```
public void setValue(int n)
```
    Sets the progress bar's current value to n. This method forwards the new value to the model.
    The data model (an instance of BoundedRangeModel) handles any mathematical issues arising from assigning faulty values. See the BoundedRangeModel documentation for details.
    
    If the new value is different from the previous value, all change listeners are notified.
    
    Parameters:
    
    n - the new value
    
    See Also:
    
    getValue(), addChangeListener(javax.swing.event.ChangeListener), BoundedRangeModel.setValue(int)
  - setMinimum
```
public void setMinimum(int n)
```
    Sets the progress bar's minimum value (stored in the progress bar's data model) to n.
    The data model (a BoundedRangeModel instance) handles any mathematical issues arising from assigning faulty values. See the BoundedRangeModel documentation for details.
    
    If the minimum value is different from the previous minimum, all change listeners are notified.
    
    Parameters:
    
    n - the new minimum
    
    See Also:
    
    getMinimum(), addChangeListener(javax.swing.event.ChangeListener), BoundedRangeModel.setMinimum(int)
  - setMaximum
```
public void setMaximum(int n)
```
    Sets the progress bar's maximum value (stored in the progress bar's data model) to n.
    The underlying BoundedRangeModel handles any mathematical issues arising from assigning faulty values. See the BoundedRangeModel documentation for details.
    
    If the maximum value is different from the previous maximum, all change listeners are notified.
    
    Parameters:
    
    n - the new maximum
    
    See Also:
    
    getMaximum(), addChangeListener(javax.swing.event.ChangeListener), BoundedRangeModel.setMaximum(int)
  - setIndeterminate
```
public void setIndeterminate(boolean newValue)
```
    Sets the indeterminate property of the progress bar, which determines whether the progress bar is in determinate or indeterminate mode. An indeterminate progress bar continuously displays animation indicating that an operation of unknown length is occurring. By default, this property is false. Some look and feels might not support indeterminate progress bars; they will ignore this property.
    See How to Monitor Progress for examples of using indeterminate progress bars.
    
    Parameters:
    
    newValue - true if the progress bar should change to indeterminate mode; false if it should revert to normal.
    
    Since:
    
    1.4
    
    See Also:
    
    isIndeterminate(), BasicProgressBarUI
  - isIndeterminate
```
public boolean isIndeterminate()
```
    Returns the value of the indeterminate property.
    
    Returns:
    
    the value of the indeterminate property
    
    Since:
    
    1.4
    
    See Also:
    
    setIndeterminate(boolean)
  - paramString
```
protected String paramString()
```
    Returns a string representation of this JProgressBar. This method is intended to be used only for debugging purposes. 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 JProgressBar
  - getAccessibleContext
```
public AccessibleContext getAccessibleContext()
```
    Gets the AccessibleContext associated with this JProgressBar. For progress bars, the AccessibleContext takes the form of an AccessibleJProgressBar. A new AccessibleJProgressBar instance is created if necessary.
    
    Specified by:
    
    getAccessibleContext in interface Accessible
    
    Overrides:
    
    getAccessibleContext in class Component
    
    Returns:
    
    an AccessibleJProgressBar that serves as the AccessibleContext of this JProgressBar

Class JProgressBar

Nested Class Summary

Nested Classes

Nested classes/interfaces inherited from class javax.swing.JComponent

Nested classes/interfaces inherited from class java.awt.Container

Nested classes/interfaces inherited from class java.awt.Component

Field Summary

Fields

Fields inherited from class javax.swing.JComponent

Fields inherited from class java.awt.Component

Fields inherited from interface javax.swing.SwingConstants

Fields inherited from interface java.awt.image.ImageObserver

Constructor Summary

Constructors

Method Summary

Methods inherited from class javax.swing.JComponent

Methods inherited from class java.awt.Container

Methods inherited from class java.awt.Component

Methods inherited from class java.lang.Object

Field Detail

orientation

paintBorder

model

progressString

paintString

changeEvent

changeListener

Constructor Detail

JProgressBar

JProgressBar

JProgressBar

JProgressBar

JProgressBar

Method Detail

getOrientation

setOrientation

isStringPainted

setStringPainted

getString

setString

getPercentComplete

isBorderPainted

setBorderPainted

paintBorder

getUI

setUI

updateUI

getUIClassID

createChangeListener

addChangeListener

removeChangeListener

getChangeListeners

fireStateChanged

getModel

setModel

getValue

getMinimum

getMaximum

setValue

setMinimum

setMaximum

setIndeterminate

isIndeterminate

paramString

getAccessibleContext