# Hierarchy For Package javafx.util

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - javafx.util.Duration (implements java.lang.Comparable<T>, java.io.Serializable)
  - javafx.util.Pair<K,V> (implements java.io.Serializable)
  - javafx.util.StringConverter<T>

## Interface Hierarchy

- javafx.util.Builder<T>
- javafx.util.BuilderFactory
- javafx.util.Callback<P,R>

Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 2008, 2019, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.