KeyEvent specifies the component-level keyboard event. MenuEvent specifies a menu event. MouseEvent specifies an event from the mouse. PaintEvent specifies the paint event for a component. Point specifies a 2-dimensional point using the Cartesian coordinate system.
Rectangle specifies a rectangular area by position and size.
Selection specifies a numerical range. SimpleFontMetric describes the general metrics of a certain font. Size specifies the 2-dimensional size of an area using width and height. SpinEvent specifies a spin button event. TextEvent specifies a text event.