Events Classification
ActionEvent : A component-defined action occurred.
ComponentEvent : A component moved, changed size, or changed visibility.
ContainerEvent : A container’s contents changed because a component was added or removed.
FocusEvent : A component has gained or lost the keyboard focus.
ItemEvent : An item was selected or deselected.
KeyEvent : A keystroke occurred in a Component.
MouseEvent : A mouse action occurred in a Component.
TextEvent : An object’s text changed.
WindowEvent : A window has changed its status.