Java™ Platform
Standard Ed. 8

Uses of Class
java.lang.Double

  • Packages that use Double 
    Package Description
    java.lang
    Provides classes that are fundamental to the design of the Java programming language.
    java.util
    Contains the collections framework, legacy collection classes, event model, date and time facilities, internationalization, and miscellaneous utility classes (a string tokenizer, a random-number generator, and a bit array).
    java.util.stream
    Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.
    javax.management.openmbean
    Provides the open data types and Open MBean descriptor classes.
    • Uses of Double in java.lang

      Fields in java.lang with type parameters of type Double 
      Modifier and Type Field and Description
      static Class<Double> Double.TYPE
      The Class instance representing the primitive type double.
      Methods in java.lang that return Double 
      Modifier and Type Method and Description
      static Double Double.valueOf(double d)
      Returns a Double instance representing the specified double value.
      static Double Double.valueOf(String s)
      Returns a Double object holding the double value represented by the argument string s.
      Methods in java.lang with parameters of type Double 
      Modifier and Type Method and Description
      int Double.compareTo(Double anotherDouble)
      Compares two Double objects numerically.
    • Uses of Double in java.util

      Methods in java.util that return Double 
      Modifier and Type Method and Description
      default Double PrimitiveIterator.OfDouble.next()
      Returns the next element in the iteration.
      Method parameters in java.util with type arguments of type Double 
      Modifier and Type Method and Description
      default void PrimitiveIterator.OfDouble.forEachRemaining(Consumer<? super Double> action)
      Performs the given action for each remaining element until all elements have been processed or the action throws an exception.
      default void Spliterator.OfDouble.forEachRemaining(Consumer<? super Double> action)
      Performs the given action for each remaining element, sequentially in the current thread, until all elements have been processed or the action throws an exception.
      default boolean Spliterator.OfDouble.tryAdvance(Consumer<? super Double> action)
      If a remaining element exists, performs the given action on it, returning true; else returns false.
    • Uses of Double in java.util.stream

      Methods in java.util.stream that return types with arguments of type Double 
      Modifier and Type Method and Description
      static <T> Collector<T,?,Double> Collectors.averagingDouble(ToDoubleFunction<? super T> mapper)
      Returns a Collector that produces the arithmetic mean of a double-valued function applied to the input elements.
      static <T> Collector<T,?,Double> Collectors.averagingInt(ToIntFunction<? super T> mapper)
      Returns a Collector that produces the arithmetic mean of an integer-valued function applied to the input elements.
      static <T> Collector<T,?,Double> Collectors.averagingLong(ToLongFunction<? super T> mapper)
      Returns a Collector that produces the arithmetic mean of a long-valued function applied to the input elements.
      Stream<Double> DoubleStream.boxed()
      Returns a Stream consisting of the elements of this stream, boxed to Double.
      static <T> Collector<T,?,Double> Collectors.summingDouble(ToDoubleFunction<? super T> mapper)
      Returns a Collector that produces the sum of a double-valued function applied to the input elements.
    • Uses of Double in javax.management.openmbean

      Fields in javax.management.openmbean with type parameters of type Double 
      Modifier and Type Field and Description
      static SimpleType<Double> SimpleType.DOUBLE
      The SimpleType instance describing values whose Java class name is java.lang.Double.
Java™ Platform
Standard Ed. 8

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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 © 1993, 2022, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.

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