# Package javafx.util

Contains various utilities and helper classes.

See: Description

- Interface Summary
  Interface | 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.

- Class Summary
  Class | Description
  --- | ---
  Duration | A class that defines a duration of time.
  Pair<K,V> | A convenience class to represent name-value pairs.
  StringConverter<T> | Converter defines conversion behavior between strings and objects.

## Package javafx.util Description

Contains various utilities and helper classes.

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