KeyEvent (Java 2 Platform SE v1.4.1)

java.awt.event
Class KeyEvent
java.lang.Object
  |
  +--java.util.EventObject
        |
        +--java.awt.AWTEvent
              |
              +--java.awt.event.ComponentEvent
                    |
                    +--java.awt.event.InputEvent
                          |
                          +--java.awt.event.KeyEvent
All Implemented Interfaces:
Serializable

Direct Known Subclasses:
MenuKeyEvent

public class KeyEvent
extends InputEvent

An event which indicates that a keystroke occurred in a component.
This low-level event is generated by a component object (such as a text field) when a key is pressed, released, or typed. The event is passed to every KeyListener or KeyAdapter object which registered to receive such events using the component's addKeyListener method. (KeyAdapter objects implement the KeyListener interface.) Each such listener object gets this KeyEvent when the event occurs.
"Key typed" events are higher-level and generally do not depend on the platform or keyboard layout. They are generated when a Unicode character is entered, and are the preferred way to find out about character input. In the simplest case, a key typed event is produced by a single key press (e.g., 'a'). Often, however, characters are produced by series of key presses (e.g., 'shift' + 'a'), and the mapping from key pressed events to key typed events may be many-to-one or many-to-many. Key releases are not usually necessary to generate a key typed event, but there are some cases where the key typed event is not generated until a key is released (e.g., entering ASCII sequences via the Alt-Numpad method in Windows). No key typed events are generated for keys that don't generate Unicode characters (e.g., action keys, modifier keys, etc.). The getKeyChar method always returns a valid Unicode character or CHAR_UNDEFINED. For key pressed and key released events, the getKeyCode method returns the event's keyCode. For key typed events, the getKeyCode method always returns VK_UNDEFINED.
"Key pressed" and "key released" events are lower-level and depend on the platform and keyboard layout. They are generated whenever a key is pressed or released, and are the only way to find out about keys that don't generate character input (e.g., action keys, modifier keys, etc.). The key being pressed or released is indicated by the getKeyCode method, which returns a virtual key code.
Virtual key codes are used to report which keyboard key has been pressed, rather than a character generated by the combination of one or more keystrokes (such as "A", which comes from shift and "a").
For example, pressing the Shift key will cause a KEY_PRESSED event with a VK_SHIFT keyCode, while pressing the 'a' key will result in a VK_A keyCode. After the 'a' key is released, a KEY_RELEASED event will be fired with VK_A. Separately, a KEY_TYPED event with a keyChar value of 'A' is generated.
Notes:

Key combinations which do not result in Unicode characters, such as action keys like F1 and the HELP key, do not generate KEY_TYPED events.
Not all keyboards or systems are capable of generating all virtual key codes. No attempt is made in Java to artificially generate these keys.
Virtual key codes do not identify a physical key, they depend on the platform and keyboard layout. For example, the key that on a Windows U.S. keyboard layout generates VK_Q, generates VK_A on a Windows French keyboard layout.
In order to support the platform-independent handling of action keys, the Java platform uses a few additional virtual key constants for functions that would otherwise have to be recognized by interpreting virtual key codes and modifiers. For example, for Japanese Windows keyboards, VK_ALL_CANDIDATES is returned instead of VK_CONVERT with the ALT modifier.

WARNING: Aside from those keys that are defined by the Java language (VK_ENTER, VK_BACK_SPACE, and VK_TAB), do not rely on the values of the VK_ constants. Sun reserves the right to change these values as needed to accomodate a wider range of keyboards in the future.

Since:

1.1

See Also:
KeyAdapter, KeyListener, Tutorial: Writing a Key Listener, Reference: The Java Class Libraries (update file), Serialized Form

Field Summary
static char CHAR_UNDEFINED
    KEY_PRESSED and KEY_RELEASED events which do not map to a valid Unicode character use this for the keyChar value.
static int KEY_FIRST
    The first number in the range of ids used for key events.
static int KEY_LAST
    The last number in the range of ids used for key events.
static int KEY_LOCATION_LEFT
    A constant indicating that the key pressed or released is in the left key location (there is more than one possible location for this key).
static int KEY_LOCATION_NUMPAD
    A constant indicating that the key event originated on the numeric keypad or with a virtual key corresponding to the numeric keypad.
static int KEY_LOCATION_RIGHT
    A constant indicating that the key pressed or released is in the right key location (there is more than one possible location for this key).
static int KEY_LOCATION_STANDARD
    A constant indicating that the key pressed or released is not distinguished as the left or right version of a key, and did not originate on the numeric keypad (or did not originate with a virtual key corresponding to the numeric keypad).
static int KEY_LOCATION_UNKNOWN
    A constant indicating that the keyLocation is indeterminate or not relevant.
static int KEY_PRESSED
    The "key pressed" event.
static int KEY_RELEASED
    The "key released" event.
static int KEY_TYPED
    The "key typed" event.
static int VK_0
    VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39)
static int VK_1

static int VK_2

static int VK_3

static int VK_4

static int VK_5

static int VK_6

static int VK_7

static int VK_8

static int VK_9

static int VK_A
    VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A)
static int VK_ACCEPT
    Constant for the Accept or Commit function key.
static int VK_ADD

static int VK_AGAIN

static int VK_ALL_CANDIDATES
    Constant for the All Candidates function key.
static int VK_ALPHANUMERIC
    Constant for the Alphanumeric function key.
static int VK_ALT

static int VK_ALT_GRAPH
    Constant for the AltGraph function key.
static int VK_AMPERSAND

static int VK_ASTERISK

static int VK_AT
    Constant for the "@" key.
static int VK_B

static int VK_BACK_QUOTE

static int VK_BACK_SLASH

static int VK_BACK_SPACE

static int VK_BRACELEFT

static int VK_BRACERIGHT

static int VK_C

static int VK_CANCEL

static int VK_CAPS_LOCK

static int VK_CIRCUMFLEX
    Constant for the "^" key.
static int VK_CLEAR

static int VK_CLOSE_BRACKET

static int VK_CODE_INPUT
    Constant for the Code Input function key.
static int VK_COLON
    Constant for the ":" key.
static int VK_COMMA

static int VK_COMPOSE
    Constant for the Compose function key.
static int VK_CONTROL

static int VK_CONVERT
    Constant for the Convert function key.
static int VK_COPY

static int VK_CUT

static int VK_D

static int VK_DEAD_ABOVEDOT

static int VK_DEAD_ABOVERING

static int VK_DEAD_ACUTE

static int VK_DEAD_BREVE

static int VK_DEAD_CARON

static int VK_DEAD_CEDILLA

static int VK_DEAD_CIRCUMFLEX

static int VK_DEAD_DIAERESIS

static int VK_DEAD_DOUBLEACUTE

static int VK_DEAD_GRAVE

static int VK_DEAD_IOTA

static int VK_DEAD_MACRON

static int VK_DEAD_OGONEK

static int VK_DEAD_SEMIVOICED_SOUND

static int VK_DEAD_TILDE

static int VK_DEAD_VOICED_SOUND

static int VK_DECIMAL

static int VK_DELETE

static int VK_DIVIDE

static int VK_DOLLAR
    Constant for the "$" key.
static int VK_DOWN
    Constant for the non-numpad down arrow key.
static int VK_E

static int VK_END

static int VK_ENTER

static int VK_EQUALS

static int VK_ESCAPE

static int VK_EURO_SIGN
    Constant for the Euro currency sign key.
static int VK_EXCLAMATION_MARK
    Constant for the "!" key.
static int VK_F

static int VK_F1
    Constant for the F1 function key.
static int VK_F10
    Constant for the F10 function key.
static int VK_F11
    Constant for the F11 function key.
static int VK_F12
    Constant for the F12 function key.
static int VK_F13
    Constant for the F13 function key.
static int VK_F14
    Constant for the F14 function key.
static int VK_F15
    Constant for the F15 function key.
static int VK_F16
    Constant for the F16 function key.
static int VK_F17
    Constant for the F17 function key.
static int VK_F18
    Constant for the F18 function key.
static int VK_F19
    Constant for the F19 function key.
static int VK_F2
    Constant for the F2 function key.
static int VK_F20
    Constant for the F20 function key.
static int VK_F21
    Constant for the F21 function key.
static int VK_F22
    Constant for the F22 function key.
static int VK_F23
    Constant for the F23 function key.
static int VK_F24
    Constant for the F24 function key.
static int VK_F3
    Constant for the F3 function key.
static int VK_F4
    Constant for the F4 function key.
static int VK_F5
    Constant for the F5 function key.
static int VK_F6
    Constant for the F6 function key.
static int VK_F7
    Constant for the F7 function key.
static int VK_F8
    Constant for the F8 function key.
static int VK_F9
    Constant for the F9 function key.
static int VK_FINAL

static int VK_FIND

static int VK_FULL_WIDTH
    Constant for the Full-Width Characters function key.
static int VK_G

static int VK_GREATER

static int VK_H

static int VK_HALF_WIDTH
    Constant for the Half-Width Characters function key.
static int VK_HELP

static int VK_HIRAGANA
    Constant for the Hiragana function key.
static int VK_HOME

static int VK_I

static int VK_INPUT_METHOD_ON_OFF
    Constant for the input method on/off key.
static int VK_INSERT

static int VK_INVERTED_EXCLAMATION_MARK
    Constant for the inverted exclamation mark key.
static int VK_J

static int VK_JAPANESE_HIRAGANA
    Constant for the Japanese-Hiragana function key.
static int VK_JAPANESE_KATAKANA
    Constant for the Japanese-Katakana function key.
static int VK_JAPANESE_ROMAN
    Constant for the Japanese-Roman function key.
static int VK_K

static int VK_KANA

static int VK_KANA_LOCK
    Constant for the locking Kana function key.
static int VK_KANJI

static int VK_KATAKANA
    Constant for the Katakana function key.
static int VK_KP_DOWN
    Constant for the numeric keypad down arrow key.
static int VK_KP_LEFT
    Constant for the numeric keypad left arrow key.
static int VK_KP_RIGHT
    Constant for the numeric keypad right arrow key.
static int VK_KP_UP
    Constant for the numeric keypad up arrow key.
static int VK_L

static int VK_LEFT
    Constant for the non-numpad left arrow key.
static int VK_LEFT_PARENTHESIS
    Constant for the "(" key.
static int VK_LESS

static int VK_M

static int VK_META

static int VK_MINUS
    Constant for the "-" key.
static int VK_MODECHANGE

static int VK_MULTIPLY

static int VK_N

static int VK_NONCONVERT
    Constant for the Don't Convert function key.
static int VK_NUM_LOCK

static int VK_NUMBER_SIGN
    Constant for the "#" key.
static int VK_NUMPAD0

static int VK_NUMPAD1

static int VK_NUMPAD2

static int VK_NUMPAD3

static int VK_NUMPAD4

static int VK_NUMPAD5

static int VK_NUMPAD6

static int VK_NUMPAD7

static int VK_NUMPAD8

static int VK_NUMPAD9

static int VK_O

static int VK_OPEN_BRACKET

static int VK_P

static int VK_PAGE_DOWN

static int VK_PAGE_UP

static int VK_PASTE

static int VK_PAUSE

static int VK_PERIOD

static int VK_PLUS
    Constant for the "+" key.
static int VK_PREVIOUS_CANDIDATE
    Constant for the Previous Candidate function key.
static int VK_PRINTSCREEN

static int VK_PROPS

static int VK_Q

static int VK_QUOTE

static int VK_QUOTEDBL

static int VK_R

static int VK_RIGHT
    Constant for the non-numpad right arrow key.
static int VK_RIGHT_PARENTHESIS
    Constant for the ")" key.
static int VK_ROMAN_CHARACTERS
    Constant for the Roman Characters function key.
static int VK_S

static int VK_SCROLL_LOCK

static int VK_SEMICOLON

static int VK_SEPARATER
    This constant is obsolete, and is included only for backwards compatibility.
static int VK_SEPARATOR
    Constant for the Numpad Separator key.
static int VK_SHIFT

static int VK_SLASH

static int VK_SPACE

static int VK_STOP

static int VK_SUBTRACT

static int VK_T

static int VK_TAB

static int VK_U

static int VK_UNDEFINED
    This value is used to indicate that the keyCode is unknown.
static int VK_UNDERSCORE
    Constant for the "_" key.
static int VK_UNDO

static int VK_UP
    Constant for the non-numpad up arrow key.
static int VK_V

static int VK_W

static int VK_X

static int VK_Y

static int VK_Z


Fields inherited from class java.awt.event.InputEvent
ALT_DOWN_MASK, ALT_GRAPH_DOWN_MASK, ALT_GRAPH_MASK, ALT_MASK, BUTTON1_DOWN_MASK, BUTTON1_MASK, BUTTON2_DOWN_MASK, BUTTON2_MASK, BUTTON3_DOWN_MASK, BUTTON3_MASK, CTRL_DOWN_MASK, CTRL_MASK, META_DOWN_MASK, META_MASK, SHIFT_DOWN_MASK, SHIFT_MASK

Fields inherited from class java.awt.event.ComponentEvent
COMPONENT_FIRST, COMPONENT_HIDDEN, COMPONENT_LAST, COMPONENT_MOVED, COMPONENT_RESIZED, COMPONENT_SHOWN

Fields inherited from class java.awt.AWTEvent
ACTION_EVENT_MASK, ADJUSTMENT_EVENT_MASK, COMPONENT_EVENT_MASK, consumed, CONTAINER_EVENT_MASK, FOCUS_EVENT_MASK, HIERARCHY_BOUNDS_EVENT_MASK, HIERARCHY_EVENT_MASK, id, INPUT_METHOD_EVENT_MASK, INVOCATION_EVENT_MASK, ITEM_EVENT_MASK, KEY_EVENT_MASK, MOUSE_EVENT_MASK, MOUSE_MOTION_EVENT_MASK, MOUSE_WHEEL_EVENT_MASK, PAINT_EVENT_MASK, RESERVED_ID_MAX, TEXT_EVENT_MASK, WINDOW_EVENT_MASK, WINDOW_FOCUS_EVENT_MASK, WINDOW_STATE_EVENT_MASK

Fields inherited from class java.util.EventObject
source

Constructor Summary
KeyEvent(Component source, int id, long when, int modifiers, int keyCode)
    Deprecated. as of JDK1.1
KeyEvent(Component source, int id, long when, int modifiers, int keyCode, char keyChar)
    Constructs a KeyEvent object.
KeyEvent(Component source, int id, long when, int modifiers, int keyCode, char keyChar, int keyLocation)


Method Summary
char getKeyChar()
    Returns the character associated with the key in this event.
int getKeyCode()
    Returns the integer keyCode associated with the key in this event.
int getKeyLocation()
    Returns the location of the key that originated this key event.
static String getKeyModifiersText(int modifiers)
    Returns a String describing the modifier key(s), such as "Shift", or "Ctrl+Shift".
static String getKeyText(int keyCode)
    Returns a String describing the keyCode, such as "HOME", "F1" or "A".
boolean isActionKey()
    Returns whether the key in this event is an "action" key.
String paramString()
    Returns a parameter string identifying this event.
void setKeyChar(char keyChar)
    Set the keyChar value to indicate a logical character.
void setKeyCode(int keyCode)
    Set the keyCode value to indicate a physical key.
void setModifiers(int modifiers)
    Deprecated. as of JDK1.1.4

Methods inherited from class java.awt.event.InputEvent
consume, getModifiers, getModifiersEx, getModifiersExText, getWhen, isAltDown, isAltGraphDown, isConsumed, isControlDown, isMetaDown, isShiftDown

Methods inherited from class java.awt.event.ComponentEvent
getComponent

Methods inherited from class java.awt.AWTEvent
getID, setSource, toString

Methods inherited from class java.util.EventObject
getSource

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

KEY_FIRST
public static final int KEY_FIRST
The first number in the range of ids used for key events.

See Also:
Constant Field Values

KEY_LAST
public static final int KEY_LAST
The last number in the range of ids used for key events.

See Also:
Constant Field Values

KEY_TYPED
public static final int KEY_TYPED
The "key typed" event. This event is generated when a character is entered. In the simplest case, it is produced by a single key press. Often, however, characters are produced by series of key presses, and the mapping from key pressed events to key typed events may be many-to-one or many-to-many.

See Also:
Constant Field Values

KEY_PRESSED
public static final int KEY_PRESSED
The "key pressed" event. This event is generated when a key is pushed down.

See Also:
Constant Field Values

KEY_RELEASED
public static final int KEY_RELEASED
The "key released" event. This event is generated when a key is let up.

See Also:
Constant Field Values

VK_ENTER
public static final int VK_ENTER
See Also:
Constant Field Values

VK_BACK_SPACE
public static final int VK_BACK_SPACE
See Also:
Constant Field Values

VK_TAB
public static final int VK_TAB
See Also:
Constant Field Values

VK_CANCEL
public static final int VK_CANCEL
See Also:
Constant Field Values

VK_CLEAR
public static final int VK_CLEAR
See Also:
Constant Field Values

VK_SHIFT
public static final int VK_SHIFT
See Also:
Constant Field Values

VK_CONTROL
public static final int VK_CONTROL
See Also:
Constant Field Values

VK_ALT
public static final int VK_ALT
See Also:
Constant Field Values

VK_PAUSE
public static final int VK_PAUSE
See Also:
Constant Field Values

VK_CAPS_LOCK
public static final int VK_CAPS_LOCK
See Also:
Constant Field Values

VK_ESCAPE
public static final int VK_ESCAPE
See Also:
Constant Field Values

VK_SPACE
public static final int VK_SPACE
See Also:
Constant Field Values

VK_PAGE_UP
public static final int VK_PAGE_UP
See Also:
Constant Field Values

VK_PAGE_DOWN
public static final int VK_PAGE_DOWN
See Also:
Constant Field Values

VK_END
public static final int VK_END
See Also:
Constant Field Values

VK_HOME
public static final int VK_HOME
See Also:
Constant Field Values

VK_LEFT
public static final int VK_LEFT
Constant for the non-numpad left arrow key.

See Also:
VK_KP_LEFT, Constant Field Values

VK_UP
public static final int VK_UP
Constant for the non-numpad up arrow key.

See Also:
VK_KP_UP, Constant Field Values

VK_RIGHT
public static final int VK_RIGHT
Constant for the non-numpad right arrow key.

See Also:
VK_KP_RIGHT, Constant Field Values

VK_DOWN
public static final int VK_DOWN
Constant for the non-numpad down arrow key.

See Also:
VK_KP_DOWN, Constant Field Values

VK_COMMA
public static final int VK_COMMA
See Also:
Constant Field Values

VK_MINUS
public static final int VK_MINUS
Constant for the "-" key.

Since:

1.2

See Also:
Constant Field Values

VK_PERIOD
public static final int VK_PERIOD
See Also:
Constant Field Values

VK_SLASH
public static final int VK_SLASH
See Also:
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VK_0
public static final int VK_0
VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39)

See Also:
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VK_1
public static final int VK_1
See Also:
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VK_2
public static final int VK_2
See Also:
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VK_3
public static final int VK_3
See Also:
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VK_4
public static final int VK_4
See Also:
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VK_5
public static final int VK_5
See Also:
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VK_6
public static final int VK_6
See Also:
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VK_7
public static final int VK_7
See Also:
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VK_8
public static final int VK_8
See Also:
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VK_9
public static final int VK_9
See Also:
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VK_SEMICOLON
public static final int VK_SEMICOLON
See Also:
Constant Field Values

VK_EQUALS
public static final int VK_EQUALS
See Also:
Constant Field Values

VK_A
public static final int VK_A
VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A)

See Also:
Constant Field Values

VK_B
public static final int VK_B
See Also:
Constant Field Values

VK_C
public static final int VK_C
See Also:
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VK_D
public static final int VK_D
See Also:
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VK_E
public static final int VK_E
See Also:
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VK_F
public static final int VK_F
See Also:
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VK_G
public static final int VK_G
See Also:
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VK_H
public static final int VK_H
See Also:
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VK_I
public static final int VK_I
See Also:
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VK_J
public static final int VK_J
See Also:
Constant Field Values

VK_K
public static final int VK_K
See Also:
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VK_L
public static final int VK_L
See Also:
Constant Field Values

VK_M
public static final int VK_M
See Also:
Constant Field Values

VK_N
public static final int VK_N
See Also:
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VK_O
public static final int VK_O
See Also:
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VK_P
public static final int VK_P
See Also:
Constant Field Values

VK_Q
public static final int VK_Q
See Also:
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VK_R
public static final int VK_R
See Also:
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VK_S
public static final int VK_S
See Also:
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VK_T
public static final int VK_T
See Also:
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VK_U
public static final int VK_U
See Also:
Constant Field Values

VK_V
public static final int VK_V
See Also:
Constant Field Values

VK_W
public static final int VK_W
See Also:
Constant Field Values

VK_X
public static final int VK_X
See Also:
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VK_Y
public static final int VK_Y
See Also:
Constant Field Values

VK_Z
public static final int VK_Z
See Also:
Constant Field Values

VK_OPEN_BRACKET
public static final int VK_OPEN_BRACKET
See Also:
Constant Field Values

VK_BACK_SLASH
public static final int VK_BACK_SLASH
See Also:
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VK_CLOSE_BRACKET
public static final int VK_CLOSE_BRACKET
See Also:
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VK_NUMPAD0
public static final int VK_NUMPAD0
See Also:
Constant Field Values

VK_NUMPAD1
public static final int VK_NUMPAD1
See Also:
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VK_NUMPAD2
public static final int VK_NUMPAD2
See Also:
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VK_NUMPAD3
public static final int VK_NUMPAD3
See Also:
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VK_NUMPAD4
public static final int VK_NUMPAD4
See Also:
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VK_NUMPAD5
public static final int VK_NUMPAD5
See Also:
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VK_NUMPAD6
public static final int VK_NUMPAD6
See Also:
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VK_NUMPAD7
public static final int VK_NUMPAD7
See Also:
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VK_NUMPAD8
public static final int VK_NUMPAD8
See Also:
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VK_NUMPAD9
public static final int VK_NUMPAD9
See Also:
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VK_MULTIPLY
public static final int VK_MULTIPLY
See Also:
Constant Field Values

VK_ADD
public static final int VK_ADD
See Also:
Constant Field Values

VK_SEPARATER
public static final int VK_SEPARATER
This constant is obsolete, and is included only for backwards compatibility.

See Also:
VK_SEPARATOR, Constant Field Values

VK_SEPARATOR
public static final int VK_SEPARATOR
Constant for the Numpad Separator key.

Since:

1.4

See Also:
Constant Field Values

VK_SUBTRACT
public static final int VK_SUBTRACT
See Also:
Constant Field Values

VK_DECIMAL
public static final int VK_DECIMAL
See Also:
Constant Field Values

VK_DIVIDE
public static final int VK_DIVIDE
See Also:
Constant Field Values

VK_DELETE
public static final int VK_DELETE
See Also:
Constant Field Values

VK_NUM_LOCK
public static final int VK_NUM_LOCK
See Also:
Constant Field Values

VK_SCROLL_LOCK
public static final int VK_SCROLL_LOCK
See Also:
Constant Field Values

VK_F1
public static final int VK_F1
Constant for the F1 function key.

See Also:
Constant Field Values

VK_F2
public static final int VK_F2
Constant for the F2 function key.

See Also:
Constant Field Values

VK_F3
public static final int VK_F3
Constant for the F3 function key.

See Also:
Constant Field Values

VK_F4
public static final int VK_F4
Constant for the F4 function key.

See Also:
Constant Field Values

VK_F5
public static final int VK_F5
Constant for the F5 function key.

See Also:
Constant Field Values

VK_F6
public static final int VK_F6
Constant for the F6 function key.

See Also:
Constant Field Values

VK_F7
public static final int VK_F7
Constant for the F7 function key.

See Also:
Constant Field Values

VK_F8
public static final int VK_F8
Constant for the F8 function key.

See Also:
Constant Field Values

VK_F9
public static final int VK_F9
Constant for the F9 function key.

See Also:
Constant Field Values

VK_F10
public static final int VK_F10
Constant for the F10 function key.

See Also:
Constant Field Values

VK_F11
public static final int VK_F11
Constant for the F11 function key.

See Also:
Constant Field Values

VK_F12
public static final int VK_F12
Constant for the F12 function key.

See Also:
Constant Field Values

VK_F13
public static final int VK_F13
Constant for the F13 function key.

Since:

1.2

See Also:
Constant Field Values

VK_F14
public static final int VK_F14
Constant for the F14 function key.

Since:

1.2

See Also:
Constant Field Values

VK_F15
public static final int VK_F15
Constant for the F15 function key.

Since:

1.2

See Also:
Constant Field Values

VK_F16
public static final int VK_F16
Constant for the F16 function key.

Since:

1.2

See Also:
Constant Field Values

VK_F17
public static final int VK_F17
Constant for the F17 function key.

Since:

1.2

See Also:
Constant Field Values

VK_F18
public static final int VK_F18
Constant for the F18 function key.

Since:

1.2

See Also:
Constant Field Values

VK_F19
public static final int VK_F19
Constant for the F19 function key.

Since:

1.2

See Also:
Constant Field Values

VK_F20
public static final int VK_F20
Constant for the F20 function key.

Since:

1.2

See Also:
Constant Field Values

VK_F21
public static final int VK_F21
Constant for the F21 function key.

Since:

1.2

See Also:
Constant Field Values

VK_F22
public static final int VK_F22
Constant for the F22 function key.

Since:

1.2

See Also:
Constant Field Values

VK_F23
public static final int VK_F23
Constant for the F23 function key.

Since:

1.2

See Also:
Constant Field Values

VK_F24
public static final int VK_F24
Constant for the F24 function key.

Since:

1.2

See Also:
Constant Field Values

VK_PRINTSCREEN
public static final int VK_PRINTSCREEN
See Also:
Constant Field Values

VK_INSERT
public static final int VK_INSERT
See Also:
Constant Field Values

VK_HELP
public static final int VK_HELP
See Also:
Constant Field Values

VK_META
public static final int VK_META
See Also:
Constant Field Values

VK_BACK_QUOTE
public static final int VK_BACK_QUOTE
See Also:
Constant Field Values

VK_QUOTE
public static final int VK_QUOTE
See Also:
Constant Field Values

VK_KP_UP
public static final int VK_KP_UP
Constant for the numeric keypad up arrow key.

Since:

1.2

See Also:
VK_UP, Constant Field Values

VK_KP_DOWN
public static final int VK_KP_DOWN
Constant for the numeric keypad down arrow key.

Since:

1.2

See Also:
VK_DOWN, Constant Field Values

VK_KP_LEFT
public static final int VK_KP_LEFT
Constant for the numeric keypad left arrow key.

Since:

1.2

See Also:
VK_LEFT, Constant Field Values

VK_KP_RIGHT
public static final int VK_KP_RIGHT
Constant for the numeric keypad right arrow key.

Since:

1.2

See Also:
VK_RIGHT, Constant Field Values

VK_DEAD_GRAVE
public static final int VK_DEAD_GRAVE
Since:

1.2

See Also:
Constant Field Values

VK_DEAD_ACUTE
public static final int VK_DEAD_ACUTE
Since:

1.2

See Also:
Constant Field Values

VK_DEAD_CIRCUMFLEX
public static final int VK_DEAD_CIRCUMFLEX
Since:

1.2

See Also:
Constant Field Values

VK_DEAD_TILDE
public static final int VK_DEAD_TILDE
Since:

1.2

See Also:
Constant Field Values

VK_DEAD_MACRON
public static final int VK_DEAD_MACRON
Since:

1.2

See Also:
Constant Field Values

VK_DEAD_BREVE
public static final int VK_DEAD_BREVE
Since:

1.2

See Also:
Constant Field Values

VK_DEAD_ABOVEDOT
public static final int VK_DEAD_ABOVEDOT
Since:

1.2

See Also:
Constant Field Values

VK_DEAD_DIAERESIS
public static final int VK_DEAD_DIAERESIS
Since:

1.2

See Also:
Constant Field Values

VK_DEAD_ABOVERING
public static final int VK_DEAD_ABOVERING
Since:

1.2

See Also:
Constant Field Values

VK_DEAD_DOUBLEACUTE
public static final int VK_DEAD_DOUBLEACUTE
Since:

1.2

See Also:
Constant Field Values

VK_DEAD_CARON
public static final int VK_DEAD_CARON
Since:

1.2

See Also:
Constant Field Values

VK_DEAD_CEDILLA
public static final int VK_DEAD_CEDILLA
Since:

1.2

See Also:
Constant Field Values

VK_DEAD_OGONEK
public static final int VK_DEAD_OGONEK
Since:

1.2

See Also:
Constant Field Values

VK_DEAD_IOTA
public static final int VK_DEAD_IOTA
Since:

1.2

See Also:
Constant Field Values

VK_DEAD_VOICED_SOUND
public static final int VK_DEAD_VOICED_SOUND
Since:

1.2

See Also:
Constant Field Values

VK_DEAD_SEMIVOICED_SOUND
public static final int VK_DEAD_SEMIVOICED_SOUND
Since:

1.2

See Also:
Constant Field Values

VK_AMPERSAND
public static final int VK_AMPERSAND
Since:

1.2

See Also:
Constant Field Values

VK_ASTERISK
public static final int VK_ASTERISK
Since:

1.2

See Also:
Constant Field Values

VK_QUOTEDBL
public static final int VK_QUOTEDBL
Since:

1.2

See Also:
Constant Field Values

VK_LESS
public static final int VK_LESS
Since:

1.2

See Also:
Constant Field Values

VK_GREATER
public static final int VK_GREATER
Since:

1.2

See Also:
Constant Field Values

VK_BRACELEFT
public static final int VK_BRACELEFT
Since:

1.2

See Also:
Constant Field Values

VK_BRACERIGHT
public static final int VK_BRACERIGHT
Since:

1.2

See Also:
Constant Field Values

VK_AT
public static final int VK_AT
Constant for the "@" key.

Since:

1.2

See Also:
Constant Field Values

VK_COLON
public static final int VK_COLON
Constant for the ":" key.

Since:

1.2

See Also:
Constant Field Values

VK_CIRCUMFLEX
public static final int VK_CIRCUMFLEX
Constant for the "^" key.

Since:

1.2

See Also:
Constant Field Values

VK_DOLLAR
public static final int VK_DOLLAR
Constant for the "$" key.

Since:

1.2

See Also:
Constant Field Values

VK_EURO_SIGN
public static final int VK_EURO_SIGN
Constant for the Euro currency sign key.

Since:

1.2

See Also:
Constant Field Values

VK_EXCLAMATION_MARK
public static final int VK_EXCLAMATION_MARK
Constant for the "!" key.

Since:

1.2

See Also:
Constant Field Values

VK_INVERTED_EXCLAMATION_MARK
public static final int VK_INVERTED_EXCLAMATION_MARK
Constant for the inverted exclamation mark key.

Since:

1.2

See Also:
Constant Field Values

VK_LEFT_PARENTHESIS
public static final int VK_LEFT_PARENTHESIS
Constant for the "(" key.

Since:

1.2

See Also:
Constant Field Values

VK_NUMBER_SIGN
public static final int VK_NUMBER_SIGN
Constant for the "#" key.

Since:

1.2

See Also:
Constant Field Values

VK_PLUS
public static final int VK_PLUS
Constant for the "+" key.

Since:

1.2

See Also:
Constant Field Values

VK_RIGHT_PARENTHESIS
public static final int VK_RIGHT_PARENTHESIS
Constant for the ")" key.

Since:

1.2

See Also:
Constant Field Values

VK_UNDERSCORE
public static final int VK_UNDERSCORE
Constant for the "_" key.

Since:

1.2

See Also:
Constant Field Values

VK_FINAL
public static final int VK_FINAL
See Also:
Constant Field Values

VK_CONVERT
public static final int VK_CONVERT
Constant for the Convert function key.

See Also:
Constant Field Values

VK_NONCONVERT
public static final int VK_NONCONVERT
Constant for the Don't Convert function key.

See Also:
Constant Field Values

VK_ACCEPT
public static final int VK_ACCEPT
Constant for the Accept or Commit function key.

See Also:
Constant Field Values

VK_MODECHANGE
public static final int VK_MODECHANGE
See Also:
Constant Field Values

VK_KANA
public static final int VK_KANA
See Also:
Constant Field Values

VK_KANJI
public static final int VK_KANJI
See Also:
Constant Field Values

VK_ALPHANUMERIC
public static final int VK_ALPHANUMERIC
Constant for the Alphanumeric function key.

Since:

1.2

See Also:
Constant Field Values

VK_KATAKANA
public static final int VK_KATAKANA
Constant for the Katakana function key.

Since:

1.2

See Also:
Constant Field Values

VK_HIRAGANA
public static final int VK_HIRAGANA
Constant for the Hiragana function key.

Since:

1.2

See Also:
Constant Field Values

VK_FULL_WIDTH
public static final int VK_FULL_WIDTH
Constant for the Full-Width Characters function key.

Since:

1.2

See Also:
Constant Field Values

VK_HALF_WIDTH
public static final int VK_HALF_WIDTH
Constant for the Half-Width Characters function key.

Since:

1.2

See Also:
Constant Field Values

VK_ROMAN_CHARACTERS
public static final int VK_ROMAN_CHARACTERS
Constant for the Roman Characters function key.

Since:

1.2

See Also:
Constant Field Values

VK_ALL_CANDIDATES
public static final int VK_ALL_CANDIDATES
Constant for the All Candidates function key.

Since:

1.2

See Also:
Constant Field Values

VK_PREVIOUS_CANDIDATE
public static final int VK_PREVIOUS_CANDIDATE
Constant for the Previous Candidate function key.

Since:

1.2

See Also:
Constant Field Values

VK_CODE_INPUT
public static final int VK_CODE_INPUT
Constant for the Code Input function key.

Since:

1.2

See Also:
Constant Field Values

VK_JAPANESE_KATAKANA
public static final int VK_JAPANESE_KATAKANA
Constant for the Japanese-Katakana function key. This key switches to a Japanese input method and selects its Katakana input mode.

Since:

1.2

See Also:
Constant Field Values

VK_JAPANESE_HIRAGANA
public static final int VK_JAPANESE_HIRAGANA
Constant for the Japanese-Hiragana function key. This key switches to a Japanese input method and selects its Hiragana input mode.

Since:

1.2

See Also:
Constant Field Values

VK_JAPANESE_ROMAN
public static final int VK_JAPANESE_ROMAN
Constant for the Japanese-Roman function key. This key switches to a Japanese input method and selects its Roman-Direct input mode.

Since:

1.2

See Also:
Constant Field Values

VK_KANA_LOCK
public static final int VK_KANA_LOCK
Constant for the locking Kana function key. This key locks the keyboard into a Kana layout.

Since:

1.3

See Also:
Constant Field Values

VK_INPUT_METHOD_ON_OFF
public static final int VK_INPUT_METHOD_ON_OFF
Constant for the input method on/off key.

Since:

1.3

See Also:
Constant Field Values

VK_CUT
public static final int VK_CUT
Since:

1.2

See Also:
Constant Field Values

VK_COPY
public static final int VK_COPY
Since:

1.2

See Also:
Constant Field Values

VK_PASTE
public static final int VK_PASTE
Since:

1.2

See Also:
Constant Field Values

VK_UNDO
public static final int VK_UNDO
Since:

1.2

See Also:
Constant Field Values

VK_AGAIN
public static final int VK_AGAIN
Since:

1.2

See Also:
Constant Field Values

VK_FIND
public static final int VK_FIND
Since:

1.2

See Also:
Constant Field Values

VK_PROPS
public static final int VK_PROPS
Since:

1.2

See Also:
Constant Field Values

VK_STOP
public static final int VK_STOP
Since:

1.2

See Also:
Constant Field Values

VK_COMPOSE
public static final int VK_COMPOSE
Constant for the Compose function key.

Since:

1.2

See Also:
Constant Field Values

VK_ALT_GRAPH
public static final int VK_ALT_GRAPH
Constant for the AltGraph function key.

Since:

1.2

See Also:
Constant Field Values

VK_UNDEFINED
public static final int VK_UNDEFINED
This value is used to indicate that the keyCode is unknown. KEY_TYPED events do not have a keyCode value; this value is used instead.

See Also:
Constant Field Values

CHAR_UNDEFINED
public static final char CHAR_UNDEFINED
KEY_PRESSED and KEY_RELEASED events which do not map to a valid Unicode character use this for the keyChar value.

See Also:
Constant Field Values

KEY_LOCATION_UNKNOWN
public static final int KEY_LOCATION_UNKNOWN
A constant indicating that the keyLocation is indeterminate or not relevant. KEY_TYPED events do not have a keyLocation; this value is used instead.

Since:

1.4

See Also:
Constant Field Values

KEY_LOCATION_STANDARD
public static final int KEY_LOCATION_STANDARD
A constant indicating that the key pressed or released is not distinguished as the left or right version of a key, and did not originate on the numeric keypad (or did not originate with a virtual key corresponding to the numeric keypad).

Since:

1.4

See Also:
Constant Field Values

KEY_LOCATION_LEFT
public static final int KEY_LOCATION_LEFT
A constant indicating that the key pressed or released is in the left key location (there is more than one possible location for this key). Example: the left shift key.

Since:

1.4

See Also:
Constant Field Values

KEY_LOCATION_RIGHT
public static final int KEY_LOCATION_RIGHT
A constant indicating that the key pressed or released is in the right key location (there is more than one possible location for this key). Example: the right shift key.

Since:

1.4

See Also:
Constant Field Values

KEY_LOCATION_NUMPAD
public static final int KEY_LOCATION_NUMPAD
A constant indicating that the key event originated on the numeric keypad or with a virtual key corresponding to the numeric keypad.

Since:

1.4

See Also:
Constant Field Values

Constructor Detail

KeyEvent
public KeyEvent(Component source,
                int id,
                long when,
                int modifiers,
                int keyCode,
                char keyChar,
                int keyLocation)
KeyEvent
public KeyEvent(Component source,
                int id,
                long when,
                int modifiers,
                int keyCode,
                char keyChar)
Constructs a KeyEvent object.
Note that passing in an invalid id results in unspecified behavior.

Parameters:
source - the Component that originated the event
id - an integer identifying the type of event
when - a long integer that specifies the time the event occurred
modifiers - the modifier keys down during event (shift, ctrl, alt, meta) Either extended _DOWN_MASK or old _MASK modifiers should be used, but both models should not be mixed in one event. Use of the extended modifiers is preferred.
keyCode - the integer code for an actual key, or VK_UNDEFINED (for a key-typed event)
keyChar - the Unicode character generated by this event, or CHAR_UNDEFINED (for key-pressed and key-released events which do not map to a valid Unicode character)
Throws:
IllegalArgumentException - if id is KEY_TYPED and keyChar is CHAR_UNDEFINED; or if id is KEY_TYPED and keyCode is not VK_UNDEFINED

KeyEvent
public KeyEvent(Component source,
                int id,
                long when,
                int modifiers,
                int keyCode)
Deprecated. as of JDK1.1

Method Detail

getKeyCode
public int getKeyCode()
Returns the integer keyCode associated with the key in this event.

Returns:
the integer code for an actual key on the keyboard. (For KEY_TYPED events, the keyCode is VK_UNDEFINED.)

setKeyCode
public void setKeyCode(int keyCode)
Set the keyCode value to indicate a physical key.

Parameters:
keyCode - an integer corresponding to an actual key on the keyboard.

getKeyChar
public char getKeyChar()
Returns the character associated with the key in this event. For example, the key-typed event for shift + "a" returns the value for "A".

Returns:
the Unicode character defined for this key event. If no valid Unicode character exists for this key event, keyChar is CHAR_UNDEFINED.

setKeyChar
public void setKeyChar(char keyChar)
Set the keyChar value to indicate a logical character.

Parameters:
keyChar - a char corresponding to to the combination of keystrokes that make up this event.

setModifiers
public void setModifiers(int modifiers)
Deprecated. as of JDK1.1.4

Set the modifiers to indicate additional keys that were held down (e.g. shift, ctrl, alt, meta) defined as part of InputEvent.
NOTE: use of this method is not recommended, because many AWT implementations do not recognize modifier changes. This is especially true for KEY_TYPED events where the shift modifier is changed.

Parameters:
modifiers - an integer combination of the modifier constants.
See Also:
InputEvent

getKeyLocation
public int getKeyLocation()
Returns the location of the key that originated this key event. Some keys occur more than once on a keyboard, e.g. the left and right shift keys. Additionally, some keys occur on the numeric keypad. This provides a way of distinguishing such keys.

Returns:
the location of the key that was pressed or released. Always returns KEY_LOCATION_UNKNOWN for KEY_TYPED events.
Since:

1.4

getKeyText
public static String getKeyText(int keyCode)
Returns a String describing the keyCode, such as "HOME", "F1" or "A". These strings can be localized by changing the awt.properties file.

Returns:
a string containing a text description for a physical key, identified by its keyCode

getKeyModifiersText
public static String getKeyModifiersText(int modifiers)
Returns a String describing the modifier key(s), such as "Shift", or "Ctrl+Shift". These strings can be localized by changing the awt.properties file.

Returns:
string a text description of the combination of modifier keys that were held down during the event

isActionKey
public boolean isActionKey()
Returns whether the key in this event is an "action" key. Typically an action key does not fire a unicode character and is not a modifier key.

Returns:
true if the key is an "action" key, false otherwise

paramString
public String paramString()
Returns a parameter string identifying this event. This method is useful for event logging and for debugging.

Overrides:
paramString in class ComponentEvent

Returns:
a string identifying the event and its attributes

Field Summary
static char	CHAR_UNDEFINED KEY_PRESSED and KEY_RELEASED events which do not map to a valid Unicode character use this for the keyChar value.
static int	KEY_FIRST The first number in the range of ids used for key events.
static int	KEY_LAST The last number in the range of ids used for key events.
static int	KEY_LOCATION_LEFT A constant indicating that the key pressed or released is in the left key location (there is more than one possible location for this key).
static int	KEY_LOCATION_NUMPAD A constant indicating that the key event originated on the numeric keypad or with a virtual key corresponding to the numeric keypad.
static int	KEY_LOCATION_RIGHT A constant indicating that the key pressed or released is in the right key location (there is more than one possible location for this key).
static int	KEY_LOCATION_STANDARD A constant indicating that the key pressed or released is not distinguished as the left or right version of a key, and did not originate on the numeric keypad (or did not originate with a virtual key corresponding to the numeric keypad).
static int	KEY_LOCATION_UNKNOWN A constant indicating that the keyLocation is indeterminate or not relevant.
static int	KEY_PRESSED The "key pressed" event.
static int	KEY_RELEASED The "key released" event.
static int	KEY_TYPED The "key typed" event.
static int	VK_0 VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39)
static int	VK_1
static int	VK_2
static int	VK_3
static int	VK_4
static int	VK_5
static int	VK_6
static int	VK_7
static int	VK_8
static int	VK_9
static int	VK_A VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A)
static int	VK_ACCEPT Constant for the Accept or Commit function key.
static int	VK_ADD
static int	VK_AGAIN
static int	VK_ALL_CANDIDATES Constant for the All Candidates function key.
static int	VK_ALPHANUMERIC Constant for the Alphanumeric function key.
static int	VK_ALT
static int	VK_ALT_GRAPH Constant for the AltGraph function key.
static int	VK_AMPERSAND
static int	VK_ASTERISK
static int	VK_AT Constant for the "@" key.
static int	VK_B
static int	VK_BACK_QUOTE
static int	VK_BACK_SLASH
static int	VK_BACK_SPACE
static int	VK_BRACELEFT
static int	VK_BRACERIGHT
static int	VK_C
static int	VK_CANCEL
static int	VK_CAPS_LOCK
static int	VK_CIRCUMFLEX Constant for the "^" key.
static int	VK_CLEAR
static int	VK_CLOSE_BRACKET
static int	VK_CODE_INPUT Constant for the Code Input function key.
static int	VK_COLON Constant for the ":" key.
static int	VK_COMMA
static int	VK_COMPOSE Constant for the Compose function key.
static int	VK_CONTROL
static int	VK_CONVERT Constant for the Convert function key.
static int	VK_COPY
static int	VK_CUT
static int	VK_D
static int	VK_DEAD_ABOVEDOT
static int	VK_DEAD_ABOVERING
static int	VK_DEAD_ACUTE
static int	VK_DEAD_BREVE
static int	VK_DEAD_CARON
static int	VK_DEAD_CEDILLA
static int	VK_DEAD_CIRCUMFLEX
static int	VK_DEAD_DIAERESIS
static int	VK_DEAD_DOUBLEACUTE
static int	VK_DEAD_GRAVE
static int	VK_DEAD_IOTA
static int	VK_DEAD_MACRON
static int	VK_DEAD_OGONEK
static int	VK_DEAD_SEMIVOICED_SOUND
static int	VK_DEAD_TILDE
static int	VK_DEAD_VOICED_SOUND
static int	VK_DECIMAL
static int	VK_DELETE
static int	VK_DIVIDE
static int	VK_DOLLAR Constant for the "$" key.
static int	VK_DOWN Constant for the non-numpad down arrow key.
static int	VK_E
static int	VK_END
static int	VK_ENTER
static int	VK_EQUALS
static int	VK_ESCAPE
static int	VK_EURO_SIGN Constant for the Euro currency sign key.
static int	VK_EXCLAMATION_MARK Constant for the "!" key.
static int	VK_F
static int	VK_F1 Constant for the F1 function key.
static int	VK_F10 Constant for the F10 function key.
static int	VK_F11 Constant for the F11 function key.
static int	VK_F12 Constant for the F12 function key.
static int	VK_F13 Constant for the F13 function key.
static int	VK_F14 Constant for the F14 function key.
static int	VK_F15 Constant for the F15 function key.
static int	VK_F16 Constant for the F16 function key.
static int	VK_F17 Constant for the F17 function key.
static int	VK_F18 Constant for the F18 function key.
static int	VK_F19 Constant for the F19 function key.
static int	VK_F2 Constant for the F2 function key.
static int	VK_F20 Constant for the F20 function key.
static int	VK_F21 Constant for the F21 function key.
static int	VK_F22 Constant for the F22 function key.
static int	VK_F23 Constant for the F23 function key.
static int	VK_F24 Constant for the F24 function key.
static int	VK_F3 Constant for the F3 function key.
static int	VK_F4 Constant for the F4 function key.
static int	VK_F5 Constant for the F5 function key.
static int	VK_F6 Constant for the F6 function key.
static int	VK_F7 Constant for the F7 function key.
static int	VK_F8 Constant for the F8 function key.
static int	VK_F9 Constant for the F9 function key.
static int	VK_FINAL
static int	VK_FIND
static int	VK_FULL_WIDTH Constant for the Full-Width Characters function key.
static int	VK_G
static int	VK_GREATER
static int	VK_H
static int	VK_HALF_WIDTH Constant for the Half-Width Characters function key.
static int	VK_HELP
static int	VK_HIRAGANA Constant for the Hiragana function key.
static int	VK_HOME
static int	VK_I
static int	VK_INPUT_METHOD_ON_OFF Constant for the input method on/off key.
static int	VK_INSERT
static int	VK_INVERTED_EXCLAMATION_MARK Constant for the inverted exclamation mark key.
static int	VK_J
static int	VK_JAPANESE_HIRAGANA Constant for the Japanese-Hiragana function key.
static int	VK_JAPANESE_KATAKANA Constant for the Japanese-Katakana function key.
static int	VK_JAPANESE_ROMAN Constant for the Japanese-Roman function key.
static int	VK_K
static int	VK_KANA
static int	VK_KANA_LOCK Constant for the locking Kana function key.
static int	VK_KANJI
static int	VK_KATAKANA Constant for the Katakana function key.
static int	VK_KP_DOWN Constant for the numeric keypad down arrow key.
static int	VK_KP_LEFT Constant for the numeric keypad left arrow key.
static int	VK_KP_RIGHT Constant for the numeric keypad right arrow key.
static int	VK_KP_UP Constant for the numeric keypad up arrow key.
static int	VK_L
static int	VK_LEFT Constant for the non-numpad left arrow key.
static int	VK_LEFT_PARENTHESIS Constant for the "(" key.
static int	VK_LESS
static int	VK_M
static int	VK_META
static int	VK_MINUS Constant for the "-" key.
static int	VK_MODECHANGE
static int	VK_MULTIPLY
static int	VK_N
static int	VK_NONCONVERT Constant for the Don't Convert function key.
static int	VK_NUM_LOCK
static int	VK_NUMBER_SIGN Constant for the "#" key.
static int	VK_NUMPAD0
static int	VK_NUMPAD1
static int	VK_NUMPAD2
static int	VK_NUMPAD3
static int	VK_NUMPAD4
static int	VK_NUMPAD5
static int	VK_NUMPAD6
static int	VK_NUMPAD7
static int	VK_NUMPAD8
static int	VK_NUMPAD9
static int	VK_O
static int	VK_OPEN_BRACKET
static int	VK_P
static int	VK_PAGE_DOWN
static int	VK_PAGE_UP
static int	VK_PASTE
static int	VK_PAUSE
static int	VK_PERIOD
static int	VK_PLUS Constant for the "+" key.
static int	VK_PREVIOUS_CANDIDATE Constant for the Previous Candidate function key.
static int	VK_PRINTSCREEN
static int	VK_PROPS
static int	VK_Q
static int	VK_QUOTE
static int	VK_QUOTEDBL
static int	VK_R
static int	VK_RIGHT Constant for the non-numpad right arrow key.
static int	VK_RIGHT_PARENTHESIS Constant for the ")" key.
static int	VK_ROMAN_CHARACTERS Constant for the Roman Characters function key.
static int	VK_S
static int	VK_SCROLL_LOCK
static int	VK_SEMICOLON
static int	VK_SEPARATER This constant is obsolete, and is included only for backwards compatibility.
static int	VK_SEPARATOR Constant for the Numpad Separator key.
static int	VK_SHIFT
static int	VK_SLASH
static int	VK_SPACE
static int	VK_STOP
static int	VK_SUBTRACT
static int	VK_T
static int	VK_TAB
static int	VK_U
static int	VK_UNDEFINED This value is used to indicate that the keyCode is unknown.
static int	VK_UNDERSCORE Constant for the "_" key.
static int	VK_UNDO
static int	VK_UP Constant for the non-numpad up arrow key.
static int	VK_V
static int	VK_W
static int	VK_X
static int	VK_Y
static int	VK_Z

Method Summary
char	getKeyChar() Returns the character associated with the key in this event.
int	getKeyCode() Returns the integer keyCode associated with the key in this event.
int	getKeyLocation() Returns the location of the key that originated this key event.
static String	getKeyModifiersText(int modifiers) Returns a String describing the modifier key(s), such as "Shift", or "Ctrl+Shift".
static String	getKeyText(int keyCode) Returns a String describing the keyCode, such as "HOME", "F1" or "A".
boolean	isActionKey() Returns whether the key in this event is an "action" key.
String	paramString() Returns a parameter string identifying this event.
void	setKeyChar(char keyChar) Set the keyChar value to indicate a logical character.
void	setKeyCode(int keyCode) Set the keyCode value to indicate a physical key.
void	setModifiers(int modifiers) Deprecated. as of JDK1.1.4

java.awt.event Class KeyEvent

Field Summary

Constructor Summary

Method Summary

Field Detail

KEY_FIRST

KEY_LAST

KEY_TYPED

KEY_PRESSED

KEY_RELEASED

VK_ENTER

VK_BACK_SPACE

VK_TAB

VK_CANCEL

VK_CLEAR

VK_SHIFT

VK_CONTROL

VK_ALT

VK_PAUSE

VK_CAPS_LOCK

VK_ESCAPE

VK_SPACE

VK_PAGE_UP

VK_PAGE_DOWN

VK_END

VK_HOME

VK_LEFT

VK_UP

VK_RIGHT

VK_DOWN

VK_COMMA

VK_MINUS

VK_PERIOD

VK_SLASH

VK_0

VK_1

VK_2

VK_3

VK_4

VK_5

VK_6

VK_7

VK_8

VK_9

VK_SEMICOLON

VK_EQUALS

VK_A

VK_B

VK_C

VK_D

VK_E

VK_F

VK_G

VK_H

VK_I

VK_J

VK_K

VK_L

VK_M

VK_N

VK_O

VK_P

VK_Q

VK_R

VK_S

VK_T

VK_U

VK_V

VK_W

VK_X

VK_Y

VK_Z

VK_OPEN_BRACKET

VK_BACK_SLASH

VK_CLOSE_BRACKET

VK_NUMPAD0

VK_NUMPAD1

VK_NUMPAD2

VK_NUMPAD3

VK_NUMPAD4

java.awt.event
Class KeyEvent