Java Utililty Methods Swing KeyStroke

List of utility methods to do Swing KeyStroke

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Description

The list of methods to do Swing KeyStroke are organized into topic(s).

Method

KeyStrokeconvertShortcutMask(KeyStroke ks, int shortcutMask)
convert Shortcut Mask 
final int mod = ks.getModifiers();
if ((mod & (CTRL_DOWN_MASK | CTRL_MASK)) != 0) {
    final int newmod = mod & ~(CTRL_DOWN_MASK | CTRL_MASK) | shortcutMask;
    return KeyStroke.getKeyStroke(ks.getKeyCode(), newmod);
return ks;
JMenuItemcreateItem(String name, Integer mnem, KeyStroke accel)
Creates and configures a menu item. 
JMenuItem item = new JMenuItem(name);
if (mnem != null) {
    item.setMnemonic(mnem.intValue());
if (accel != null) {
    item.setAccelerator(accel);
return item;
...
KeyStrokecreateKeyMask(final int aKeyStroke, final int... aMasks)
Convenience method to create a key mask. 
int modifiers = 0;
for (int aMask : aMasks) {
    modifiers |= aMask;
return KeyStroke.getKeyStroke(aKeyStroke, modifiers);
voidfixTabKeys(final JComponent component)
This method sets the FocusTraversalKeys for a component to be the standard keys. 
final Set<AWTKeyStroke> forward = new HashSet<AWTKeyStroke>(
        component.getFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS));
forward.add(KeyStroke.getKeyStroke("TAB"));
component.setFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, forward);
final Set<AWTKeyStroke> backward = new HashSet<AWTKeyStroke>(
        component.getFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS));
backward.add(KeyStroke.getKeyStroke("shift TAB"));
component.setFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, backward);
...
KeyStrokegetAccelerator(final int key)
Returns the KeyStroke for a key combined with the platform dependent menu shortcut key. 
return KeyStroke.getKeyStroke(key, Toolkit.getDefaultToolkit().getMenuShortcutKeyMask());
ActiongetActionForKeystroke(JComponent component, int inputMapId, KeyStroke keyStroke)
Obtine actiunea inregistrata pentru apasarea de tasta 
InputMap inputMap = component.getInputMap(inputMapId);
String key = (String) inputMap.get(keyStroke);
if (key != null) {
    ActionMap localMap = component.getActionMap();
    return localMap.get(key);
} else {
    return null;
KeyStrokegetKeyStroke(String s)
get Key Stroke 
KeyStroke ks = KeyStroke.getKeyStroke(s);
if (ks != null && s.matches("(?i).*Ctrl.*")) {
    return convertShortcutMask(ks, getMenuShortcutKeyMask());
return ks;
KeyStrokegetKeyStrokeWithoutCtrlModifier(KeyStroke stroke)
get Key Stroke Without Ctrl Modifier 
try {
    Method method = AWTKeyStroke.class.getDeclaredMethod("getCachedStroke", char.class, int.class,
            int.class, boolean.class);
    method.setAccessible(true);
    int modifiers = stroke.getModifiers() & ~InputEvent.CTRL_MASK & ~InputEvent.CTRL_DOWN_MASK;
    return (KeyStroke) method.invoke(null, stroke.getKeyChar(), stroke.getKeyCode(), modifiers,
            stroke.isOnKeyRelease());
} catch (Exception exception) {
...
intgetMnemonic(final String key)
Returns the mnemonic for a key. 
return KeyStroke.getKeyStroke(key).getKeyCode();
voidinstallAction(JComponent comp, Action action, KeyStroke keyStroke, String actionKey)
install Action 
comp.getActionMap().put(actionKey, action);
comp.getInputMap().put(keyStroke, actionKey);