Class java.awt.Event 
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Class java.awt.Event 

java.lang.Object
   |
   +----java.awt.Event
public class Event
extends Object
Event is a platform-independent class that encapsulates events from the local Graphical User Interface(GUI) platform.

Variable Index

o ACTION_EVENT
An action event.
o ALT_MASK
The alt modifier constant.
o CTRL_MASK
The control modifier constant.
o DOWN
The down arrow key.
o END
The end key.
o F1
The F1 function key.
o F10
The F10 function key.
o F11
The F11 function key.
o F12
The F12 function key.
o F2
The F2 function key.
o F3
The F3 function key.
o F4
The F4 function key.
o F5
The F5 function key.
o F6
The F6 function key.
o F7
The F7 function key.
o F8
The F8 function key.
o F9
The F9 function key.
o GOT_FOCUS
A component gained the focus.
o HOME
The home key.
o KEY_ACTION
The key action keyboard event.
o KEY_ACTION_RELEASE
The key action keyboard event.
o KEY_PRESS
The key press keyboard event.
o KEY_RELEASE
The key release keyboard event.
o LEFT
The left arrow key.
o LIST_DESELECT
o LIST_SELECT
o LOAD_FILE
A file loading event.
o LOST_FOCUS
A component lost the focus.
o META_MASK
The meta modifier constant.
o MOUSE_DOWN
The mouse down event.
o MOUSE_DRAG
The mouse drag event.
o MOUSE_ENTER
The mouse enter event.
o MOUSE_EXIT
The mouse exit event.
o MOUSE_MOVE
The mouse move event.
o MOUSE_UP
The mouse up event.
o PGDN
The page down key.
o PGUP
The page up key.
o RIGHT
The right arrow key.
o SAVE_FILE
A file saving event.
o SCROLL_ABSOLUTE
The absolute scroll event.
o SCROLL_LINE_DOWN
The line down scroll event.
o SCROLL_LINE_UP
The line up scroll event.
o SCROLL_PAGE_DOWN
The page down scroll event.
o SCROLL_PAGE_UP
The page up scroll event.
o SHIFT_MASK
The shift modifier constant.
o UP
The up arrow key.
o WINDOW_DEICONIFY
The de-iconify window event.
o WINDOW_DESTROY
The destroy window event.
o WINDOW_EXPOSE
The expose window event.
o WINDOW_ICONIFY
The iconify window event.
o WINDOW_MOVED
The move window event.
o arg
An arbitraty argument.
o clickCount
The number of consecutive clicks.
o evt
The next event.
o id
The type of this event.
o key
The key that was pressed in a keyboard event.
o modifiers
The state of the modifier keys.
o target
The target component.
o when
The time stamp.
o x
The x coordinate of the event.
o y
The y coordinate of the event.

Constructor Index

o Event(Object, long, int, int, int, int, int, Object)
Constructs an event with the specified target component, time stamp, event type, x and y coordinates, keyboard key, state of the modifier keys and argument.
o Event(Object, long, int, int, int, int, int)
Constructs an event with the specified target component, time stamp, event type, x and y coordinates, keyboard key, state of the modifier keys and an argument set to null.
o Event(Object, int, Object)
Constructs an event with the specified target component, event type, and argument.

Method Index

o controlDown()
Checks if the control key is down.
o metaDown()
Checks if the meta key is down.
o paramString()
Returns the parameter String of this Event.
o shiftDown()
Checks if the shift key is down.
o toString()
Returns the String representation of this Event's values.
o translate(int, int)
Translates an event relative to the given component.

Variables

o SHIFT_MASK 
  public final static int SHIFT_MASK
The shift modifier constant.
o CTRL_MASK 
  public final static int CTRL_MASK
The control modifier constant.
o META_MASK 
  public final static int META_MASK
The meta modifier constant.
o ALT_MASK 
  public final static int ALT_MASK
The alt modifier constant.
o HOME 
  public final static int HOME
The home key.
o END 
  public final static int END
The end key.
o PGUP 
  public final static int PGUP
The page up key.
o PGDN 
  public final static int PGDN
The page down key.
o UP 
  public final static int UP
The up arrow key.
o DOWN 
  public final static int DOWN
The down arrow key.
o LEFT 
  public final static int LEFT
The left arrow key.
o RIGHT 
  public final static int RIGHT
The right arrow key.
o F1 
  public final static int F1
The F1 function key.
o F2 
  public final static int F2
The F2 function key.
o F3 
  public final static int F3
The F3 function key.
o F4 
  public final static int F4
The F4 function key.
o F5 
  public final static int F5
The F5 function key.
o F6 
  public final static int F6
The F6 function key.
o F7 
  public final static int F7
The F7 function key.
o F8 
  public final static int F8
The F8 function key.
o F9 
  public final static int F9
The F9 function key.
o F10 
  public final static int F10
The F10 function key.
o F11 
  public final static int F11
The F11 function key.
o F12 
  public final static int F12
The F12 function key.
o WINDOW_DESTROY 
  public final static int WINDOW_DESTROY
The destroy window event.
o WINDOW_EXPOSE 
  public final static int WINDOW_EXPOSE
The expose window event.
o WINDOW_ICONIFY 
  public final static int WINDOW_ICONIFY
The iconify window event.
o WINDOW_DEICONIFY 
  public final static int WINDOW_DEICONIFY
The de-iconify window event.
o WINDOW_MOVED 
  public final static int WINDOW_MOVED
The move window event.
o KEY_PRESS 
  public final static int KEY_PRESS
The key press keyboard event.
o KEY_RELEASE 
  public final static int KEY_RELEASE
The key release keyboard event.
o KEY_ACTION 
  public final static int KEY_ACTION
The key action keyboard event.
o KEY_ACTION_RELEASE 
  public final static int KEY_ACTION_RELEASE
The key action keyboard event.
o MOUSE_DOWN 
  public final static int MOUSE_DOWN
The mouse down event.
o MOUSE_UP 
  public final static int MOUSE_UP
The mouse up event.
o MOUSE_MOVE 
  public final static int MOUSE_MOVE
The mouse move event.
o MOUSE_ENTER 
  public final static int MOUSE_ENTER
The mouse enter event.
o MOUSE_EXIT 
  public final static int MOUSE_EXIT
The mouse exit event.
o MOUSE_DRAG 
  public final static int MOUSE_DRAG
The mouse drag event.
o SCROLL_LINE_UP 
  public final static int SCROLL_LINE_UP
The line up scroll event.
o SCROLL_LINE_DOWN 
  public final static int SCROLL_LINE_DOWN
The line down scroll event.
o SCROLL_PAGE_UP 
  public final static int SCROLL_PAGE_UP
The page up scroll event.
o SCROLL_PAGE_DOWN 
  public final static int SCROLL_PAGE_DOWN
The page down scroll event.
o SCROLL_ABSOLUTE 
  public final static int SCROLL_ABSOLUTE
The absolute scroll event.
o LIST_SELECT 
  public final static int LIST_SELECT
o LIST_DESELECT 
  public final static int LIST_DESELECT
o ACTION_EVENT 
  public final static int ACTION_EVENT
An action event.
o LOAD_FILE 
  public final static int LOAD_FILE
A file loading event.
o SAVE_FILE 
  public final static int SAVE_FILE
A file saving event.
o GOT_FOCUS 
  public final static int GOT_FOCUS
A component gained the focus.
o LOST_FOCUS 
  public final static int LOST_FOCUS
A component lost the focus.
o target 
  public Object target
The target component.
o when 
  public long when
The time stamp.
o id 
  public int id
The type of this event.
o x 
  public int x
The x coordinate of the event.
o y 
  public int y
The y coordinate of the event.
o key 
  public int key
The key that was pressed in a keyboard event.
o modifiers 
  public int modifiers
The state of the modifier keys.
o clickCount 
  public int clickCount
The number of consecutive clicks. This field is relevant only for MOUSE_DOWN events. If the field isn't set it will be 0. Otherwise, it will be 1 for single-clicks, 2 for double-clicks, and so on.
o arg 
  public Object arg
An arbitraty argument.
o evt 
  public Event evt
The next event. Used when putting events into a linked list.

Constructors

o Event 
  public Event(Object target,
               long when,
               int id,
               int x,
               int y,
               int key,
               int modifiers,
               Object arg)
Constructs an event with the specified target component, time stamp, event type, x and y coordinates, keyboard key, state of the modifier keys and argument.
Parameters:
target - the target component
when - the time stamp
id - the event type
x - the x coordinate
y - the y coordinate
key - the key pressed in a keyboard event
modifiers - the state of the modifier keys
arg - the specified argument
o Event 
  public Event(Object target,
               long when,
               int id,
               int x,
               int y,
               int key,
               int modifiers)
Constructs an event with the specified target component, time stamp, event type, x and y coordinates, keyboard key, state of the modifier keys and an argument set to null.
Parameters:
target - the target component
when - the time stamp
id - the event type
x - the x coordinate
y - the y coordinate
key - the key pressed in a keyboard event
modifiers - the state of the modifier keys
o Event 
  public Event(Object target,
               int id,
               Object arg)
Constructs an event with the specified target component, event type, and argument.
Parameters:
target - the target component
id - the event type
arg - the specified argument

Methods

o translate 
  public void translate(int x,
                        int y)
Translates an event relative to the given component. This involves at a minimum translating the coordinates so they make sense within the given component. It may also involve translating a region in the case of an expose event.
Parameters:
x - the x coordinate
y - the y coordinate
o shiftDown 
  public boolean shiftDown()
Checks if the shift key is down.
See Also:
modifiers, controlDown, metaDown
o controlDown 
  public boolean controlDown()
Checks if the control key is down.
See Also:
modifiers, shiftDown, metaDown
o metaDown 
  public boolean metaDown()
Checks if the meta key is down.
See Also:
modifiers, shiftDown, controlDown
o paramString 
  protected String paramString()
Returns the parameter String of this Event.
o toString 
  public String toString()
Returns the String representation of this Event's values.
Overrides:
toString in class Object 
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