Class java.awt.event.ActionEvent - JDK 5 Documentation v1.1.8, Java 2 SDK 英文文档

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Class java.awt.event.ActionEvent

java.lang.Object
   |
   +----java.util.EventObject
           |
           +----java.awt.AWTEvent
                   |
                   +----java.awt.event.ActionEvent

public class ActionEvent
extends AWTEvent

The action semantic event.

See Also:: ActionListener

ACTION_FIRST: Marks the first integer id for the range of action event ids.
ACTION_LAST: Marks the last integer id for the range of action event ids.
ACTION_PERFORMED: An action performed event type.
ALT_MASK: The alt modifier constant.
CTRL_MASK: The control modifier constant.
META_MASK: The meta modifier constant.
SHIFT_MASK: The shift modifier constant.

ActionEvent(Object, int, String): Constructs an ActionEvent object with the specified source object.
ActionEvent(Object, int, String, int): Constructs an ActionEvent object with the specified source object.

getActionCommand(): Returns the command name associated with this action.
getModifiers(): Returns the modifiers held down during this action event.
paramString()

SHIFT_MASK

 public static final int SHIFT_MASK

The shift modifier constant.

CTRL_MASK

 public static final int CTRL_MASK

The control modifier constant.

META_MASK

 public static final int META_MASK

The meta modifier constant.

ALT_MASK

 public static final int ALT_MASK

The alt modifier constant.

ACTION_FIRST

 public static final int ACTION_FIRST

Marks the first integer id for the range of action event ids.

ACTION_LAST

 public static final int ACTION_LAST

Marks the last integer id for the range of action event ids.

ACTION_PERFORMED

 public static final int ACTION_PERFORMED

An action performed event type.

ActionEvent

 public ActionEvent(Object source,
                    int id,
                    String command)

Constructs an ActionEvent object with the specified source object.

Parameters:: source - the object where the event originated; id - the type of event; command - the command string for this action event

ActionEvent

 public ActionEvent(Object source,
                    int id,
                    String command,
                    int modifiers)

Constructs an ActionEvent object with the specified source object.

Parameters:: source - the object where the event originated; id - the type of event; command - the command string for this action event; modifiers - the modifiers held down during this action

getActionCommand

 public String getActionCommand()

Returns the command name associated with this action.

getModifiers

 public int getModifiers()

Returns the modifiers held down during this action event.

paramString

 public String paramString()

Overrides:: paramString in class AWTEvent

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