EventListener (Java SE 26 & JDK 26)
Description: declaration: module: java.xml, package: org.w3c.dom.events, interface: EventListener
Keywords: org.w3c.dom.events.EventListener interface

# Interface EventListener

public interface EventListener
The `EventListener` interface is the primary method for handling events. Users implement the `EventListener` interface and register their listener on an `EventTarget` using the `AddEventListener` method. The users should also remove their `EventListener` from its `EventTarget` after they have completed using the listener.

When a `Node` is copied using the `cloneNode` method the `EventListener`s attached to the source `Node` are not attached to the copied `Node`. If the user wishes the same `EventListener`s to be added to the newly created copy the user must add them manually.

See also the Document Object Model (DOM) Level 2 Events Specification.

Since:
  1.5, DOM Level 2

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `handleEvent(Event evt)`
  This method is called whenever an event occurs of the type for which the `EventListener` interface was registered.

- ## Method Details

  - ### handleEvent

    void handleEvent(Event evt)
    This method is called whenever an event occurs of the type for which the `EventListener` interface was registered.
    Parameters:
      `evt` - The `Event` contains contextual information about the event. It also contains the `stopPropagation` and `preventDefault` methods which are used in determining the event's flow and default action.