Uses of Class java.awt.event.KeyEvent (Java Platform SE 8 )
Date: 2026-04-17

## Uses of Class
java.awt.event.KeyEvent

- Packages that use KeyEvent
  Package | Description
  --- | ---
  java.awt | Contains all of the classes for creating user interfaces and for painting graphics and images.
  java.awt.event | Provides interfaces and classes for dealing with different types of events fired by AWT components.
  javax.swing | Provides a set of "lightweight" (all-Java language) components that, to the maximum degree possible, work the same on all platforms.
  javax.swing.event | Provides for events fired by Swing components.
  javax.swing.plaf | Provides one interface and many abstract classes that Swing uses to provide its pluggable look-and-feel capabilities.
  javax.swing.plaf.basic | Provides user interface objects built according to the Basic look and feel.

- - ### Uses of KeyEvent in java.awt

    Methods in java.awt with parameters of type KeyEvent
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | KeyEventDispatcher.`dispatchKeyEvent(KeyEvent e)` This method is called by the current KeyboardFocusManager requesting that this KeyEventDispatcher dispatch the specified event on its behalf.
    `abstract boolean` | KeyboardFocusManager.`dispatchKeyEvent(KeyEvent e)` Typically this method will be called by `dispatchEvent` if no other KeyEventDispatcher in the dispatcher chain dispatched the KeyEvent, or if no other KeyEventDispatchers are registered.
    `boolean` | DefaultKeyboardFocusManager.`dispatchKeyEvent(KeyEvent e)` Called by `dispatchEvent` if no other KeyEventDispatcher in the dispatcher chain dispatched the KeyEvent, or if no other KeyEventDispatchers are registered.
    `static AWTKeyStroke` | AWTKeyStroke.`getAWTKeyStrokeForEvent(KeyEvent anEvent)` Returns an `AWTKeyStroke` which represents the stroke which generated a given `KeyEvent`.
    `void` | AWTEventMulticaster.`keyPressed(KeyEvent e)` Handles the keyPressed event by invoking the keyPressed methods on listener-a and listener-b.
    `void` | AWTEventMulticaster.`keyReleased(KeyEvent e)` Handles the keyReleased event by invoking the keyReleased methods on listener-a and listener-b.
    `void` | AWTEventMulticaster.`keyTyped(KeyEvent e)` Handles the keyTyped event by invoking the keyTyped methods on listener-a and listener-b.
    `boolean` | KeyEventPostProcessor.`postProcessKeyEvent(KeyEvent e)` This method is called by the current KeyboardFocusManager, requesting that this KeyEventPostProcessor perform any necessary post-processing which should be part of the KeyEvent's final resolution.
    `abstract boolean` | KeyboardFocusManager.`postProcessKeyEvent(KeyEvent e)` This method will be called by `dispatchKeyEvent`.
    `boolean` | DefaultKeyboardFocusManager.`postProcessKeyEvent(KeyEvent e)` This method will be called by `dispatchKeyEvent`.
    `abstract void` | KeyboardFocusManager.`processKeyEvent(Component focusedComponent, KeyEvent e)` This method initiates a focus traversal operation if and only if the KeyEvent represents a focus traversal key for the specified focusedComponent.
    `void` | DefaultKeyboardFocusManager.`processKeyEvent(Component focusedComponent, KeyEvent e)` This method initiates a focus traversal operation if and only if the KeyEvent represents a focus traversal key for the specified focusedComponent.
    `protected void` | Component.`processKeyEvent(KeyEvent e)` Processes key events occurring on this component by dispatching them to any registered `KeyListener` objects.

  - ### Uses of KeyEvent in java.awt.event

    Methods in java.awt.event with parameters of type KeyEvent
    Modifier and Type | Method and Description
    --- | ---
    `void` | KeyAdapter.`keyPressed(KeyEvent e)` Invoked when a key has been pressed.
    `void` | KeyListener.`keyPressed(KeyEvent e)` Invoked when a key has been pressed.
    `void` | KeyAdapter.`keyReleased(KeyEvent e)` Invoked when a key has been released.
    `void` | KeyListener.`keyReleased(KeyEvent e)` Invoked when a key has been released.
    `void` | KeyAdapter.`keyTyped(KeyEvent e)` Invoked when a key has been typed.
    `void` | KeyListener.`keyTyped(KeyEvent e)` Invoked when a key has been typed.

  - ### Uses of KeyEvent in javax.swing

    Methods in javax.swing with parameters of type KeyEvent
    Modifier and Type | Method and Description
    --- | ---
    `static KeyStroke` | KeyStroke.`getKeyStrokeForEvent(KeyEvent anEvent)` Returns a KeyStroke which represents the stroke which generated a given KeyEvent.
    `static boolean` | SwingUtilities.`notifyAction(Action action, KeyStroke ks, KeyEvent event, Object sender, int modifiers)` Invokes `actionPerformed` on `action` if `action` is enabled (and non-`null`).
    `protected void` | JComponent.`processComponentKeyEvent(KeyEvent e)` Processes any key events that the component itself recognizes.
    `protected boolean` | JComboBox.`processKeyBinding(KeyStroke ks, KeyEvent e, int condition, boolean pressed)` Invoked to process the key bindings for `ks` as the result of the `KeyEvent` `e`.
    `protected boolean` | JComponent.`processKeyBinding(KeyStroke ks, KeyEvent e, int condition, boolean pressed)` Invoked to process the key bindings for `ks` as the result of the `KeyEvent` `e`.
    `protected boolean` | JTable.`processKeyBinding(KeyStroke ks, KeyEvent e, int condition, boolean pressed)`
    `protected boolean` | JMenuBar.`processKeyBinding(KeyStroke ks, KeyEvent e, int condition, boolean pressed)` Subclassed to check all the child menus.
    `static boolean` | SwingUtilities.`processKeyBindings(KeyEvent event)` Process the key bindings for the `Component` associated with `event`.
    `void` | JComboBox.`processKeyEvent(KeyEvent e)` Handles `KeyEvent`s, looking for the Tab key.
    `protected void` | JComponent.`processKeyEvent(KeyEvent e)` Overrides `processKeyEvent` to process events.
    `void` | MenuSelectionManager.`processKeyEvent(KeyEvent e)` When a MenuElement receives an event from a KeyListener, it should never process the event directly.
    `protected void` | JMenu.`processKeyEvent(KeyEvent evt)` Processes key stroke events such as mnemonics and accelerators.
    `protected void` | JPopupMenu.`processKeyEvent(KeyEvent evt)` Processes key stroke events such as mnemonics and accelerators.
    `void` | JMenuItem.`processKeyEvent(KeyEvent e, MenuElement[] path, MenuSelectionManager manager)` Processes a key event forwarded from the `MenuSelectionManager` and changes the menu selection, if necessary, by using `MenuSelectionManager`'s API.
    `void` | JMenuBar.`processKeyEvent(KeyEvent e, MenuElement[] path, MenuSelectionManager manager)` Implemented to be a `MenuElement` -- does nothing.
    `void` | MenuElement.`processKeyEvent(KeyEvent event, MenuElement[] path, MenuSelectionManager manager)` Process a key event.
    `void` | JPopupMenu.`processKeyEvent(KeyEvent e, MenuElement[] path, MenuSelectionManager manager)` Processes a key event forwarded from the `MenuSelectionManager` and changes the menu selection, if necessary, by using `MenuSelectionManager`'s API.

  - ### Uses of KeyEvent in javax.swing.event

    Subclasses of KeyEvent in javax.swing.event
    Modifier and Type | Class and Description
    --- | ---
    `class` | `MenuKeyEvent` MenuKeyEvent is used to notify interested parties that the menu element has received a KeyEvent forwarded to it in a menu tree.

  - ### Uses of KeyEvent in javax.swing.plaf

    Methods in javax.swing.plaf with parameters of type KeyEvent
    Modifier and Type | Method and Description
    --- | ---
    `protected void` | LayerUI.`processKeyEvent(KeyEvent e, JLayer<? extends V> l)` Processes key events occurring on the `JLayer` or any of its subcomponents.

  - ### Uses of KeyEvent in javax.swing.plaf.basic

    Methods in javax.swing.plaf.basic with parameters of type KeyEvent
    Modifier and Type | Method and Description
    --- | ---
    `void` | BasicTreeUI.KeyHandler.`keyPressed(KeyEvent e)`
    `void` | BasicTableUI.KeyHandler.`keyPressed(KeyEvent e)`
    `void` | BasicComboBoxUI.KeyHandler.`keyPressed(KeyEvent e)`
    `void` | BasicComboPopup.InvocationKeyHandler.`keyReleased(KeyEvent e)`
    `void` | BasicTreeUI.KeyHandler.`keyReleased(KeyEvent e)`
    `void` | BasicTableUI.KeyHandler.`keyReleased(KeyEvent e)`
    `void` | BasicTreeUI.KeyHandler.`keyTyped(KeyEvent e)` Invoked when a key has been typed.
    `void` | BasicTableUI.KeyHandler.`keyTyped(KeyEvent e)`

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