Event listeners represent the interfaces responsible to handle events. Java provides various Event listener classes, however, only those which are more frequently used will be discussed. Every method of an event listener method has a single argument as an object which is the subclass of EventObject class. For example, mouse event listener methods will accept instance of MouseEvent, where MouseEvent derives from EventObject.
It is a marker interface which every listener interface has to extend. This class is defined in java.util package.
Following is the declaration for java.util.EventListener interface −
public interface EventListener
Following is the list of commonly used event listeners.
Sr.No. | Class & Description |
---|---|
1 | ActionListener
This interface is used for receiving the action events. |
2 | ComponentListener
This interface is used for receiving the component events. |
3 | ItemListener
This interface is used for receiving the item events. |
4 | KeyListener
This interface is used for receiving the key events. |
5 | MouseListener
This interface is used for receiving the mouse events. |
6 | WindowListener
This interface is used for receiving the window events. |
7 | AdjustmentListener
This interface is used for receiving the adjustment events. |
8 | ContainerListener
This interface is used for receiving the container events. |
9 | MouseMotionListener
This interface is used for receiving the mouse motion events. |
10 | FocusListener
This interface is used for receiving the focus events. |