The InputEvent class in java programming

InputEvent defines several integer constants that represent any modifiers ,such as the control key pressed ,that might be associated with the event .originally the InputEvent class defined the following modifiers

ACTION_EVENT_MASK	INPUT_METHOD_EVENT_MASK
ADJUSTMENT_EVENT_MASK,	INVOCATION_EVENT_MASK
MOUSE_MOTION_EVENT_MASK	MOUSE_EVENT_MASK
COMPONENT_EVENT_MASK	ITEM_EVENT_MASK
CONTAINER_EVENT_MASK	WINDOW_FOCUS_EVENT_MASK
FOCUS_EVENT_MASK	WINDOW_STATE_EVENT_MASK
HIERARCHY_BOUNDS_EVENT_MASK	WINDOW_EVENT_MASK
PAINT_EVENT_MASK, RESERVED_ID_MAX	MOUSE_WHEEL_EVENT_MASK
KEY_EVENT_MASK	TEXT_EVENT_MASK
HIERARCHY_EVENT_MASK

Method Summary
void	consume()           Consumes this event so that it will not be processed in the default manner by the source which originated it.
int	getModifiers()           Returns the modifier mask for this event.
int	getModifiersEx()           Returns the extended modifier mask for this event.
static String	getModifiersExText(int modifiers)           Returns a String describing the extended modifier keys and mouse buttons, such as "Shift", "Button1", or "Ctrl+Shift".
long	getWhen()           Returns the timestamp of when this event occurred.
boolean	isAltDown()           Returns whether or not the Alt modifier is down on this event.
boolean	isAltGraphDown()           Returns whether or not the AltGraph modifier is down on this event.
boolean	isConsumed()           Returns whether or not this event has been consumed.
boolean	isControlDown()           Returns whether or not the Control modifier is down on this event.
boolean	isMetaDown()           Returns whether or not the Meta modifier is down on this event.
boolean	isShiftDown()           Returns whether or not the Shift modifier is down on this event.