Java Module java.desktop Package javax.swing Class DefaultFocusManager（JDK11）

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java.lang.Object
- java.awt.KeyboardFocusManager
- - java.awt.DefaultKeyboardFocusManager
  - - javax.swing.FocusManager
    - - javax.swing.DefaultFocusManager

All Implemented Interfaces:

KeyEventDispatcher, KeyEventPostProcessor
```
public class DefaultFocusManager
extends FocusManager
```
This class has been obsoleted by the 1.4 focus APIs. While client code may still use this class, developers are strongly encouraged to use java.awt.KeyboardFocusManager and java.awt.DefaultKeyboardFocusManager instead.
Please see How to Use the Focus Subsystem, a section in The Java Tutorial, and the Focus Specification for more information.

Since:

1.2

Field Summary
- Fields declared in class javax.swing.FocusManager
  FOCUS_MANAGER_CLASS_PROPERTY
- Fields declared in class java.awt.KeyboardFocusManager
  BACKWARD_TRAVERSAL_KEYS, DOWN_CYCLE_TRAVERSAL_KEYS, FORWARD_TRAVERSAL_KEYS, UP_CYCLE_TRAVERSAL_KEYS

Constructor Summary

Constructors
Constructor	Description
`DefaultFocusManager()`	Constructs a `DefaultFocusManager`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`compareTabOrder(Component a, Component b)`	Compares the components by their focus traversal cycle order.
`Component`	`getComponentAfter(Container aContainer, Component aComponent)`	Returns the component after.
`Component`	`getComponentBefore(Container aContainer, Component aComponent)`	Returns the component before.
`Component`	`getFirstComponent(Container aContainer)`	Returns the first component.
`Component`	`getLastComponent(Container aContainer)`	Returns the last component.

Methods declared in class javax.swing.FocusManager
disableSwingFocusManager, getCurrentManager, isFocusManagerEnabled, setCurrentManager

Methods declared in class java.awt.DefaultKeyboardFocusManager
dequeueKeyEvents, discardKeyEvents, dispatchEvent, dispatchKeyEvent, downFocusCycle, enqueueKeyEvents, focusNextComponent, focusPreviousComponent, postProcessKeyEvent, processKeyEvent, upFocusCycle

Methods declared in class java.awt.KeyboardFocusManager
addKeyEventDispatcher, addKeyEventPostProcessor, addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, addVetoableChangeListener, clearFocusOwner, clearGlobalFocusOwner, downFocusCycle, firePropertyChange, fireVetoableChange, focusNextComponent, focusPreviousComponent, getActiveWindow, getCurrentFocusCycleRoot, getCurrentKeyboardFocusManager, getDefaultFocusTraversalKeys, getDefaultFocusTraversalPolicy, getFocusedWindow, getFocusOwner, getGlobalActiveWindow, getGlobalCurrentFocusCycleRoot, getGlobalFocusedWindow, getGlobalFocusOwner, getGlobalPermanentFocusOwner, getKeyEventDispatchers, getKeyEventPostProcessors, getPermanentFocusOwner, getPropertyChangeListeners, getPropertyChangeListeners, getVetoableChangeListeners, getVetoableChangeListeners, redispatchEvent, removeKeyEventDispatcher, removeKeyEventPostProcessor, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, removeVetoableChangeListener, setCurrentKeyboardFocusManager, setDefaultFocusTraversalKeys, setDefaultFocusTraversalPolicy, setGlobalActiveWindow, setGlobalCurrentFocusCycleRoot, setGlobalFocusedWindow, setGlobalFocusOwner, setGlobalPermanentFocusOwner, upFocusCycle

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

- Constructor Detail
  - DefaultFocusManager
```
public DefaultFocusManager()
```
    Constructs a DefaultFocusManager.
- Method Detail
  - getComponentAfter
```
public Component getComponentAfter(Container aContainer,
                                   Component aComponent)
```
    Returns the component after.
    
    Parameters:
    
    aContainer - a container
    
    aComponent - a component
    
    Returns:
    
    the component after
  - getComponentBefore
```
public Component getComponentBefore(Container aContainer,
                                    Component aComponent)
```
    Returns the component before.
    
    Parameters:
    
    aContainer - a container
    
    aComponent - a component
    
    Returns:
    
    the component before
  - getFirstComponent
```
public Component getFirstComponent(Container aContainer)
```
    Returns the first component.
    
    Parameters:
    
    aContainer - a container
    
    Returns:
    
    the first component
  - getLastComponent
```
public Component getLastComponent(Container aContainer)
```
    Returns the last component.
    
    Parameters:
    
    aContainer - a container
    
    Returns:
    
    the last component
  - compareTabOrder
```
public boolean compareTabOrder(Component a,
                               Component b)
```
    Compares the components by their focus traversal cycle order.
    
    Parameters:
    
    a - the first component
    
    b - the second component
    
    Returns:
    
    a comparison of the components by their focus traversal cycle order

Java Module java.desktop Package javax.swing Class DefaultFocusManager（JDK11）

Class DefaultFocusManager

Field Summary

Fields declared in class javax.swing.FocusManager

Fields declared in class java.awt.KeyboardFocusManager

Constructor Summary

Method Summary

Methods declared in class javax.swing.FocusManager

Methods declared in class java.awt.DefaultKeyboardFocusManager

Methods declared in class java.awt.KeyboardFocusManager

Methods declared in class java.lang.Object

Constructor Detail

DefaultFocusManager

Method Detail

getComponentAfter

getComponentBefore

getFirstComponent

getLastComponent

compareTabOrder