SWING: MouseEvent Class Cheat Sheet - A quick cheatsheet for beginners, with examples

Following is the declaration for java.awt.event.MouseEvent class −

public class MouseEvent
   extends InputEvent

Table of Contents

Following are the fields for java.awt.event.MouseEvent class

static int BUTTON1 − Indicates mouse button #1; used by getButton()
static int MOUSE_CLICKED − The “mouse clicked” event
static int MOUSE_DRAGGED − The “mouse dragged” event
static int MOUSE_ENTERED − The “mouse entered” event
static int MOUSE_EXITED − The “mouse exited” event
static int MOUSE_FIRST − The first number in the range of IDs used for mouse events
static int MOUSE_LAST − The last number in the range of IDs used for mouse events
static int MOUSE_MOVED − The “mouse moved” event
static int MOUSE_PRESSED − The “mouse pressed” event
static int MOUSE_RELEASED − The “mouse released” event
static int MOUSE_WHEEL − The “mouse wheel” event
static int NOBUTTON − Indicates no mouse buttons; used by getButton()
static int VK_WINDOWS − Constant for the Microsoft Windows “Windows” key.

`MouseEvent(Component source, int id, long when, int modifiers, int x, int y, int clickCount, boolean popupTrigger)`	Constructs a MouseEvent object with the specified source component, type, modifiers, coordinates, and click count.
`MouseEvent(Component source, int id, long when, int modifiers, int x, int y, int clickCount, boolean popupTrigger, int button)`	Constructs a MouseEvent object with the specified source component, type, modifiers, coordinates, and click count.
`MouseEvent(Component source, int id, long when, int modifiers, int x, int y, int xAbs, int yAbs, int clickCount, boolean popupTrigger, int button)`	Constructs a MouseEvent object with the specified source component, type, modifiers, coordinates, absolute coordinates, and click count.

`int getButton()`	Returns which, if any, of the mouse buttons has changed state.
`int getClickCount()`	Returns the number of mouse clicks associated with this event.
`Point getLocationOnScreen()`	Returns the absolute x, y position of the event.
`static String getMouseModifiersText(int modifiers)`	Returns a String describing the modifier keys and mouse buttons that were down during the event, such as “Shift”, or “Ctrl+Shift”.
`Point getPoint()`	Returns the x,y position of the event relative to the source component.
`int getX()`	Returns the horizontal x position of the event relative to the source component.
`int getXOnScreen()`	Returns the absolute horizontal x position of the event.
`int getY()`	Returns the vertical y position of the event relative to the source component.
`int getYOnScreen()`	Returns the absolute vertical y position of the event.
`boolean isPopupTrigger()`	Returns whether or not this mouse event is the popup menu trigger event for the platform.
`String paramString()`	Returns a parameter string identifying this event.
`void translatePoint(int x, int y)`	Translates the event’s coordinates to a new position by adding specified x (horizontal) and y (vertical) offsets.

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