BasicTreeUI.KeyHandler (Java SE 12 & JDK 12 )

java.lang.Object
- java.awt.event.KeyAdapter
- - javax.swing.plaf.basic.BasicTreeUI.KeyHandler

All Implemented Interfaces:

KeyListener, EventListener

Enclosing class:

BasicTreeUI
```
public class BasicTreeUI.KeyHandler
extends KeyAdapter
```
This is used to get multiple key down events to appropriately generate events.

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  protected boolean isKeyDown
  Set to true while keyPressed is active.
  
  protected Action repeatKeyAction
  Key code that is being generated for.
- Constructor Summary
  
  Constructors
  Constructor Description
  
  KeyHandler()
- Method Summary
  
  Modifier and Type Method Description
  
  void keyTyped(KeyEvent e)
  Invoked when a key has been typed.
  - Methods declared in class java.awt.event.KeyAdapter
    keyPressed, keyReleased
  - Methods declared in class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - repeatKeyAction
```
protected Action repeatKeyAction
```
    Key code that is being generated for.
  - isKeyDown
```
protected boolean isKeyDown
```
    Set to true while keyPressed is active.
- Constructor Detail
  - KeyHandler
```
public KeyHandler()
```
- Method Detail
  - keyTyped
```
public void keyTyped(KeyEvent e)
```
    Invoked when a key has been typed. Moves the keyboard focus to the first element whose first letter matches the alphanumeric key pressed by the user. Subsequent same key presses move the keyboard focus to the next object that starts with the same letter.
    
    Specified by:
    
    keyTyped in interface KeyListener
    
    Overrides:
    
    keyTyped in class KeyAdapter
    
    Parameters:
    
    e - the event to be processed