## Uses of Interface
java.util.function.ToDoubleBiFunction

- Packages that use ToDoubleBiFunction
  Package | Description
  --- | ---
  java.util.concurrent | Utility classes commonly useful in concurrent programming.

- - ### Uses of ToDoubleBiFunction in java.util.concurrent

    Methods in java.util.concurrent with parameters of type ToDoubleBiFunction
    Modifier and Type | Method | Description
    --- | --- | ---
    `double` | ConcurrentHashMap.`reduceToDouble​(long parallelismThreshold, ToDoubleBiFunction<? super K,​? super V> transformer, double basis, DoubleBinaryOperator reducer)` | Returns the result of accumulating the given transformation of all (key, value) pairs using the given reducer to combine values, and the given basis as an identity value.