Module java.prefs
Package java.util.prefs

# Interface NodeChangeListener

All Superinterfaces:
  `EventListener`

public interface NodeChangeListener extends EventListener
A listener for receiving preference node change events.

Since:
  1.4
See Also:
  - `Preferences`
  - `NodeChangeEvent`
  - `PreferenceChangeListener`

## Method Summary

Modifier and Type
Method
Description
`void`
`childAdded(NodeChangeEvent evt)`
This method gets called when a child node is added.
`void`
`childRemoved(NodeChangeEvent evt)`
This method gets called when a child node is removed.

## Method Details

### childAdded

void childAdded(NodeChangeEvent evt)
This method gets called when a child node is added.

Parameters:
  `evt` - A node change event object describing the parent and child node.

### childRemoved

void childRemoved(NodeChangeEvent evt)
This method gets called when a child node is removed.

Parameters:
  `evt` - A node change event object describing the parent and child node.