# Package javafx.util

package javafx.util

Contains various utilities and helper classes.

- Related Packages
  Package
  Description
  javafx.util.converter
  This package is for standard `string converters` for JavaFX.
- Class
  Description
  Builder<T>
  Interface representing a builder.
  BuilderFactory
  Interface representing a builder factory.
  Callback<P,R>
  The Callback interface is designed to allow for a common, reusable interface to exist for defining APIs that requires a call back in certain situations.
  Duration
  A class that defines a duration of time.
  FXPermission
  Deprecated, for removal: This API element is subject to removal in a future version.
  This class was only useful in connection with the Security Manager, which is no longer supported.
  Pair<K,V>
  A convenience class to represent name-value pairs.
  StringConverter<T>
  Converter defines conversion behavior between strings and objects.
  Subscription
  Represents a cancel or cleanup operation for an action that can be cancelled or that allocated resources.