LineListener (Java SE 23 & JDK 23)
Description: declaration: module: java.desktop, package: javax.sound.sampled, interface: LineListener
Keywords: javax.sound.sampled.LineListener interface

# Interface LineListener

All Superinterfaces:
  `EventListener`

public interface LineListener extends EventListener
Instances of classes that implement the `LineListener` interface can register to receive events when a line's status changes.

Since:
  1.3
See Also:
  - `Line`
  - `Line.addLineListener(javax.sound.sampled.LineListener)`
  - `Line.removeLineListener(javax.sound.sampled.LineListener)`
  - `LineEvent`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `update(LineEvent event)`
  Informs the listener that a line's state has changed.

- ## Method Details

  - ### update

    void update(LineEvent event)
    Informs the listener that a line's state has changed. The listener can then invoke `LineEvent` methods to obtain information about the event.
    Parameters:
      `event` - a line event that describes the change