Changes the focus traversal keys for the entire application. : Focus Event « Event « Java






  1. Java
  2. Event
  3. Focus Event

Changes the focus traversal keys for the entire application.

  


import java.awt.AWTKeyStroke;
import java.awt.KeyboardFocusManager;
import java.util.HashSet;
import java.util.Set;

import javax.swing.KeyStroke;

public class Main {
  public static void main(String[] argv) throws Exception {

    Set<AWTKeyStroke> set = new HashSet<AWTKeyStroke>(KeyboardFocusManager
        .getCurrentKeyboardFocusManager().getDefaultFocusTraversalKeys(
            KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS));

    set.add(KeyStroke.getKeyStroke("F2"));
    KeyboardFocusManager.getCurrentKeyboardFocusManager().setDefaultFocusTraversalKeys(
        KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, set);
  }
}








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4.KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS
5.Setting Focus Traversal Keys for the Entire Application
6.Change the backward focus traversal keys for the application
7.KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS
8.KeyboardFocusManager.getCurrentKeyboardFocusManager().getDefaultFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS)
9.Remove all forward focus traversal keys for the application
10.Remove all backward focus traversal keys for the application
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12.Press shift space or shift F2 to move the focus to the previous focusable component.
13.Setting the Initial Focused Component in a Window
14.Finding the Next Focusable Component
15.Find the previous focusable component
16.Determining If a Focus Lost Is Temporary or Permanent
17.Determining the Opposite Component of a Focus Event
18.Validating a JTextField When Permanently Losing the Focus
19.Removing the Focus from the Application
20.Use Focus Events in Swing
21.Null is returned if none of the components in this application has the focus
22.Null is returned if none of the windows in this application has the focus
23.Listening to All Focus Changes Between Components and windows
24.Preventing a Component from Gaining the Focus