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java.lang.Objectjava.awt.MenuComponent
java.awt.MenuItem
public class MenuItem
This class represents an item in a menu.
| Nested Class Summary | |
|---|---|
protected class |
MenuItem.AccessibleAWTMenuItem
|
| Nested classes/interfaces inherited from class java.awt.MenuComponent |
|---|
MenuComponent.AccessibleAWTMenuComponent |
| Constructor Summary | |
|---|---|
MenuItem()
Initializes a new instance of MenuItem with no label
and no shortcut. |
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MenuItem(String label)
Initializes a new instance of MenuItem with the specified
label and no shortcut. |
|
MenuItem(String label,
MenuShortcut shortcut)
Initializes a new instance of MenuItem with the specified
label and shortcut. |
|
| Method Summary | ||
|---|---|---|
void |
addActionListener(ActionListener listener)
Adds the specified listener to the list of registered action listeners for this component. |
|
void |
addNotify()
Creates the native peer for this object. |
|
void |
deleteShortcut()
Deletes the shortcut for this menu item if one exists. |
|
void |
disable()
Deprecated. This method is deprecated in favor of setEnabled(). |
|
protected void |
disableEvents(long events)
Disables the specified events. |
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void |
enable()
Deprecated. This method is deprecated in favor of setEnabled(). |
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void |
enable(boolean enabled)
Deprecated. This method is deprecated in favor of setEnabled(). |
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protected void |
enableEvents(long events)
Enables the specified events. |
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AccessibleContext |
getAccessibleContext()
Gets the AccessibleContext associated with this MenuItem. |
|
String |
getActionCommand()
Returns the name of the action command in the action events generated by this menu item. |
|
ActionListener[] |
getActionListeners()
|
|
String |
getLabel()
Returns the label for this menu item, which may be null. |
|
|
getListeners(Class<T> listenerType)
Returns all registered EventListers of the given listenerType. |
|
MenuShortcut |
getShortcut()
Returns the shortcut for this menu item, which may be null. |
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boolean |
isEnabled()
Tests whether or not this menu item is enabled. |
|
String |
paramString()
Returns a debugging string for this object. |
|
protected void |
processActionEvent(ActionEvent event)
Processes the specified event by dispatching it to any registered listeners. |
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protected void |
processEvent(AWTEvent event)
Processes the specified event by calling processActionEvent()
if it is an instance of ActionEvent. |
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void |
removeActionListener(ActionListener l)
|
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void |
setActionCommand(String actionCommand)
Sets the name of the action command in the action events generated by this menu item. |
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void |
setEnabled(boolean enabled)
Sets the enabled status of this menu item. |
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void |
setLabel(String label)
This method sets the label for this menu to the specified value. |
|
void |
setShortcut(MenuShortcut shortcut)
Sets the shortcut for this menu item to the specified value. |
|
| Methods inherited from class java.awt.MenuComponent |
|---|
dispatchEvent, getFont, getName, getParent, getPeer, getTreeLock, postEvent, removeNotify, setFont, setName, toString |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
public MenuItem()
MenuItem with no label
and no shortcut.
public MenuItem(String label)
MenuItem with the specified
label and no shortcut.
label - The label for this menu item.
public MenuItem(String label,
MenuShortcut shortcut)
MenuItem with the specified
label and shortcut.
label - The label for this menu item.shortcut - The shortcut for this menu item.| Method Detail |
|---|
public String getLabel()
null.
public void setLabel(String label)
label - The new label for this menu item.public boolean isEnabled()
true if this menu item is enabled, false
otherwise.public void setEnabled(boolean enabled)
enabled - true to enable this menu item,
false otherwise.public void enable(boolean enabled)
setEnabled().
enabled - true to enable this menu item,
false otherwise.public void enable()
setEnabled().
public void disable()
setEnabled().
public MenuShortcut getShortcut()
null.
public void setShortcut(MenuShortcut shortcut)
shortcut - The new shortcut for this menu item.public void deleteShortcut()
public String getActionCommand()
public void setActionCommand(String actionCommand)
actionCommand - The new action command name.protected final void enableEvents(long events)
events - The events to enable, which should be the bit masks
from AWTEvent.protected final void disableEvents(long events)
events - The events to enable, which should be the bit masks
from AWTEvent.public void addNotify()
public void addActionListener(ActionListener listener)
listener - The listener to add.public void removeActionListener(ActionListener l)
public ActionListener[] getActionListeners()
public <T extends EventListener> T[] getListeners(Class<T> listenerType)
protected void processEvent(AWTEvent event)
processActionEvent()
if it is an instance of ActionEvent.
processEvent in class MenuComponentevent - The event to process.protected void processActionEvent(ActionEvent event)
event - The event to process.public String paramString()
paramString in class MenuComponentpublic AccessibleContext getAccessibleContext()
MenuItem.
The context is created, if necessary.
getAccessibleContext in interface AccessiblegetAccessibleContext in class MenuComponent
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