Java javax.swing Class ProgressMonitor（JDK8）

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Java™ Platform
Standard Ed. 8

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Method

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java.lang.Object
- javax.swing.ProgressMonitor

All Implemented Interfaces:

Accessible
```
public class ProgressMonitor
extends Object
implements Accessible
```
A class to monitor the progress of some operation. If it looks like the operation will take a while, a progress dialog will be popped up. When the ProgressMonitor is created it is given a numeric range and a descriptive string. As the operation progresses, call the setProgress method to indicate how far along the [min,max] range the operation is. Initially, there is no ProgressDialog. After the first millisToDecideToPopup milliseconds (default 500) the progress monitor will predict how long the operation will take. If it is longer than millisToPopup (default 2000, 2 seconds) a ProgressDialog will be popped up.
From time to time, when the Dialog box is visible, the progress bar will be updated when setProgress is called. setProgress won't always update the progress bar, it will only be done if the amount of progress is visibly significant.

For further documentation and examples see How to Monitor Progress, a section in The Java Tutorial.

See Also:

ProgressMonitorInputStream

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`protected class`	`ProgressMonitor.AccessibleProgressMonitor` `AccessibleProgressMonitor` implements accessibility support for the `ProgressMonitor` class.

Field Summary

Fields
Modifier and Type	Field and Description
`protected AccessibleContext`	`accessibleContext` The `AccessibleContext` for the `ProgressMonitor`

Constructor Summary

Constructors
Constructor and Description
`ProgressMonitor(Component parentComponent, Object message, String note, int min, int max)` Constructs a graphic object that shows progress, typically by filling in a rectangular bar as the process nears completion.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`close()` Indicate that the operation is complete.
`AccessibleContext`	`getAccessibleContext()` Gets the `AccessibleContext` for the `ProgressMonitor`
`int`	`getMaximum()` Returns the maximum value -- the higher end of the progress value.
`int`	`getMillisToDecideToPopup()` Returns the amount of time this object waits before deciding whether or not to popup a progress monitor.
`int`	`getMillisToPopup()` Returns the amount of time it will take for the popup to appear.
`int`	`getMinimum()` Returns the minimum value -- the lower end of the progress value.
`String`	`getNote()` Specifies the additional note that is displayed along with the progress message.
`boolean`	`isCanceled()` Returns true if the user hits the Cancel button in the progress dialog.
`void`	`setMaximum(int m)` Specifies the maximum value.
`void`	`setMillisToDecideToPopup(int millisToDecideToPopup)` Specifies the amount of time to wait before deciding whether or not to popup a progress monitor.
`void`	`setMillisToPopup(int millisToPopup)` Specifies the amount of time it will take for the popup to appear.
`void`	`setMinimum(int m)` Specifies the minimum value.
`void`	`setNote(String note)` Specifies the additional note that is displayed along with the progress message.
`void`	`setProgress(int nv)` Indicate the progress of the operation being monitored.

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

- Field Detail
  - accessibleContext
```
protected AccessibleContext accessibleContext
```
    The AccessibleContext for the ProgressMonitor
    
    Since:
    
    1.5
- Constructor Detail
  - ProgressMonitor
```
public ProgressMonitor(Component parentComponent,
                       Object message,
                       String note,
                       int min,
                       int max)
```
    Constructs a graphic object that shows progress, typically by filling in a rectangular bar as the process nears completion.
    
    Parameters:
    
    parentComponent - the parent component for the dialog box
    
    message - a descriptive message that will be shown to the user to indicate what operation is being monitored. This does not change as the operation progresses. See the message parameters to methods in JOptionPane.message for the range of values.
    
    note - a short note describing the state of the operation. As the operation progresses, you can call setNote to change the note displayed. This is used, for example, in operations that iterate through a list of files to show the name of the file being processes. If note is initially null, there will be no note line in the dialog box and setNote will be ineffective
    
    min - the lower bound of the range
    
    max - the upper bound of the range
    
    See Also:
    
    JDialog, JOptionPane
- Method Detail
  - setProgress
```
public void setProgress(int nv)
```
    Indicate the progress of the operation being monitored. If the specified value is >= the maximum, the progress monitor is closed.
    
    Parameters:
    
    nv - an int specifying the current value, between the maximum and minimum specified for this component
    
    See Also:
    
    setMinimum(int), setMaximum(int), close()
  - close
```
public void close()
```
    Indicate that the operation is complete. This happens automatically when the value set by setProgress is >= max, but it may be called earlier if the operation ends early.
  - getMinimum
```
public int getMinimum()
```
    Returns the minimum value -- the lower end of the progress value.
    
    Returns:
    
    an int representing the minimum value
    
    See Also:
    
    setMinimum(int)
  - setMinimum
```
public void setMinimum(int m)
```
    Specifies the minimum value.
    
    Parameters:
    
    m - an int specifying the minimum value
    
    See Also:
    
    getMinimum()
  - getMaximum
```
public int getMaximum()
```
    Returns the maximum value -- the higher end of the progress value.
    
    Returns:
    
    an int representing the maximum value
    
    See Also:
    
    setMaximum(int)
  - setMaximum
```
public void setMaximum(int m)
```
    Specifies the maximum value.
    
    Parameters:
    
    m - an int specifying the maximum value
    
    See Also:
    
    getMaximum()
  - isCanceled
```
public boolean isCanceled()
```
    Returns true if the user hits the Cancel button in the progress dialog.
  - setMillisToDecideToPopup
```
public void setMillisToDecideToPopup(int millisToDecideToPopup)
```
    Specifies the amount of time to wait before deciding whether or not to popup a progress monitor.
    
    Parameters:
    
    millisToDecideToPopup - an int specifying the time to wait, in milliseconds
    
    See Also:
    
    getMillisToDecideToPopup()
  - getMillisToDecideToPopup
```
public int getMillisToDecideToPopup()
```
    Returns the amount of time this object waits before deciding whether or not to popup a progress monitor.
    
    See Also:
    
    setMillisToDecideToPopup(int)
  - setMillisToPopup
```
public void setMillisToPopup(int millisToPopup)
```
    Specifies the amount of time it will take for the popup to appear. (If the predicted time remaining is less than this time, the popup won't be displayed.)
    
    Parameters:
    
    millisToPopup - an int specifying the time in milliseconds
    
    See Also:
    
    getMillisToPopup()
  - getMillisToPopup
```
public int getMillisToPopup()
```
    Returns the amount of time it will take for the popup to appear.
    
    See Also:
    
    setMillisToPopup(int)
  - setNote
```
public void setNote(String note)
```
    Specifies the additional note that is displayed along with the progress message. Used, for example, to show which file the is currently being copied during a multiple-file copy.
    
    Parameters:
    
    note - a String specifying the note to display
    
    See Also:
    
    getNote()
  - getNote
```
public String getNote()
```
    Specifies the additional note that is displayed along with the progress message.
    
    Returns:
    
    a String specifying the note to display
    
    See Also:
    
    setNote(java.lang.String)
  - getAccessibleContext
```
public AccessibleContext getAccessibleContext()
```
    Gets the AccessibleContext for the ProgressMonitor
    
    Specified by:
    
    getAccessibleContext in interface Accessible
    
    Returns:
    
    the AccessibleContext for the ProgressMonitor
    
    Since:
    
    1.5

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Java javax.swing Class ProgressMonitor（JDK8）

Class ProgressMonitor

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

accessibleContext

Constructor Detail

ProgressMonitor

Method Detail

setProgress

close

getMinimum

setMinimum

getMaximum

setMaximum

isCanceled

setMillisToDecideToPopup

getMillisToDecideToPopup

setMillisToPopup

getMillisToPopup

setNote

getNote

getAccessibleContext