Interface DoubleIterable

    • Method Detail

      • doubleIterator

        DoubleIterator doubleIterator()
        Returns a primitive iterator that can be used to iterate over the DoubleIterable in an imperative style.
      • toArray

        double[] toArray()
        Converts the DoubleIterable to a primitive double array.
      • toArray

        default double[] toArray​(double[] target)
        Converts the DoubleIterable to a primitive double array. If the collection fits into the provided array it is used to store its elements and is returned from the method, otherwise a new array of the appropriate size is allocated and returned. If the iterable is empty, the target array is returned unchanged.
      • contains

        boolean contains​(double value)
        Returns true if the value is contained in the DoubleIterable, and false if it is not.
      • containsAll

        default boolean containsAll​(double... source)
        Returns true if all of the values specified in the source array are contained in the DoubleIterable, and false if they are not.
      • containsAll

        default boolean containsAll​(DoubleIterable source)
        Returns true if all of the values specified in the source DoubleIterable are contained in the DoubleIterable, and false if they are not.
      • containsAny

        default boolean containsAny​(double... source)
        Returns true if any of the values specified in the source array are contained in the DoubleIterable, and false if they are not.
        Since:
        11.0
      • containsAny

        default boolean containsAny​(DoubleIterable source)
        Returns true if any of the values specified in the source DoubleIterable are contained in the DoubleIterable, and false if they are not.
        Since:
        11.0
      • containsNone

        default boolean containsNone​(double... source)
        Returns true if none of the values specified in the source array are contained in the DoubleIterable, and false if they are.
        Since:
        11.0
      • containsNone

        default boolean containsNone​(DoubleIterable source)
        Returns true if none of the values specified in the source DoubleIterable are contained in the DoubleIterable, and false if they are.
        Since:
        11.0
      • forEach

        default void forEach​(DoubleProcedure procedure)
        Applies the DoubleProcedure to each element in the DoubleIterable.
      • each

        void each​(DoubleProcedure procedure)
        A synonym for forEach.
        Since:
        7.0.
      • select

        DoubleIterable select​(DoublePredicate predicate)
        Returns a new DoubleIterable with all of the elements in the DoubleIterable that return true for the specified predicate.
      • reject

        DoubleIterable reject​(DoublePredicate predicate)
        Returns a new DoubleIterable with all of the elements in the DoubleIterable that return false for the specified predicate.
      • collect

        <V> RichIterable<V> collect​(DoubleToObjectFunction<? extends V> function)
        Returns a new collection with the results of applying the specified function on each element of the source collection. This method is also commonly called transform or map.
      • flatCollect

        default <V,​R extends java.util.Collection<V>> R flatCollect​(DoubleToObjectFunction<? extends java.lang.Iterable<V>> function,
                                                                          R target)
        flatCollect is a special case of collect(DoubleToObjectFunction). With collect, when the DoubleToObjectFunction returns a collection, the result is a collection of collections. flatCollect outputs a single "flattened" collection instead. This method is commonly called flatMap.
        Since:
        8.1.
      • collectBoolean

        default <R extends MutableBooleanCollection> R collectBoolean​(DoubleToBooleanFunction function,
                                                                      R target)
        Returns the target MutableBooleanCollection with the results of applying the specified function on each element of the source collection.
        Since:
        8.1.
      • collectByte

        default <R extends MutableByteCollection> R collectByte​(DoubleToByteFunction function,
                                                                R target)
        Returns the target MutableByteCollection with the results of applying the specified function on each element of the source collection.
        Since:
        8.1.
      • collectChar

        default <R extends MutableCharCollection> R collectChar​(DoubleToCharFunction function,
                                                                R target)
        Returns the target MutableCharCollection with the results of applying the specified function on each element of the source collection.
        Since:
        8.1.
      • collectShort

        default <R extends MutableShortCollection> R collectShort​(DoubleToShortFunction function,
                                                                  R target)
        Returns the target MutableShortCollection with the results of applying the specified function on each element of the source collection.
        Since:
        8.1.
      • collectInt

        default <R extends MutableIntCollection> R collectInt​(DoubleToIntFunction function,
                                                              R target)
        Returns the target MutableIntCollection with the results of applying the specified function on each element of the source collection.
        Since:
        8.1.
      • collectFloat

        default <R extends MutableFloatCollection> R collectFloat​(DoubleToFloatFunction function,
                                                                  R target)
        Returns the target MutableFloatCollection with the results of applying the specified function on each element of the source collection.
        Since:
        8.1.
      • collectLong

        default <R extends MutableLongCollection> R collectLong​(DoubleToLongFunction function,
                                                                R target)
        Returns the target MutableLongCollection with the results of applying the specified function on each element of the source collection.
        Since:
        8.1.
      • collectDouble

        default <R extends MutableDoubleCollection> R collectDouble​(DoubleToDoubleFunction function,
                                                                    R target)
        Returns the target MutableDoubleCollection with the results of applying the specified function on each element of the source collection.
        Since:
        8.1.
      • detectIfNone

        double detectIfNone​(DoublePredicate predicate,
                            double ifNone)
      • count

        int count​(DoublePredicate predicate)
        Returns a count of the number of elements in the DoubleIterable that return true for the specified predicate.
      • anySatisfy

        boolean anySatisfy​(DoublePredicate predicate)
        Returns true if any of the elements in the DoubleIterable return true for the specified predicate, otherwise returns false.
      • allSatisfy

        boolean allSatisfy​(DoublePredicate predicate)
        Returns true if all of the elements in the DoubleIterable return true for the specified predicate, otherwise returns false.
      • noneSatisfy

        default boolean noneSatisfy​(DoublePredicate predicate)
        Returns true if none of the elements in the DoubleIterable return true for the specified predicate, otherwise returns false.
      • toList

        MutableDoubleList toList()
        Converts the DoubleIterable to a new MutableDoubleList.
      • toSet

        MutableDoubleSet toSet()
        Converts the DoubleIterable to a new MutableDoubleSet.
      • toBag

        MutableDoubleBag toBag()
        Converts the DoubleIterable to a new MutableDoubleBag.
      • asLazy

        LazyDoubleIterable asLazy()
        Returns a LazyDoubleIterable adapter wrapping the source DoubleIterable.
      • injectIntoBoolean

        default boolean injectIntoBoolean​(boolean injectedValue,
                                          BooleanDoubleToBooleanFunction function)
        Returns the final boolean result of evaluating function using each element of the iterable and the previous evaluation result as the parameters. The injected value is used for the first parameter of the first evaluation, and the current item in the iterable is used as the second parameter.
        Since:
        11.1
      • injectIntoByte

        default byte injectIntoByte​(byte injectedValue,
                                    ByteDoubleToByteFunction function)
        Returns the final byte result of evaluating function using each element of the iterable and the previous evaluation result as the parameters. The injected value is used for the first parameter of the first evaluation, and the current item in the iterable is used as the second parameter.
        Since:
        11.1
      • injectIntoChar

        default char injectIntoChar​(char injectedValue,
                                    CharDoubleToCharFunction function)
        Returns the final char result of evaluating function using each element of the iterable and the previous evaluation result as the parameters. The injected value is used for the first parameter of the first evaluation, and the current item in the iterable is used as the second parameter.
        Since:
        11.1
      • injectIntoShort

        default short injectIntoShort​(short injectedValue,
                                      ShortDoubleToShortFunction function)
        Returns the final short result of evaluating function using each element of the iterable and the previous evaluation result as the parameters. The injected value is used for the first parameter of the first evaluation, and the current item in the iterable is used as the second parameter.
        Since:
        11.1
      • injectIntoInt

        default int injectIntoInt​(int injectedValue,
                                  IntDoubleToIntFunction function)
        Returns the final int result of evaluating function using each element of the iterable and the previous evaluation result as the parameters. The injected value is used for the first parameter of the first evaluation, and the current item in the iterable is used as the second parameter.
        Since:
        11.1
      • injectIntoFloat

        default float injectIntoFloat​(float injectedValue,
                                      FloatDoubleToFloatFunction function)
        Returns the final float result of evaluating function using each element of the iterable and the previous evaluation result as the parameters. The injected value is used for the first parameter of the first evaluation, and the current item in the iterable is used as the second parameter.
        Since:
        11.1
      • injectIntoLong

        default long injectIntoLong​(long injectedValue,
                                    LongDoubleToLongFunction function)
        Returns the final long result of evaluating function using each element of the iterable and the previous evaluation result as the parameters. The injected value is used for the first parameter of the first evaluation, and the current item in the iterable is used as the second parameter.
        Since:
        11.1
      • injectIntoDouble

        default double injectIntoDouble​(double injectedValue,
                                        DoubleDoubleToDoubleFunction function)
        Returns the final double result of evaluating function using each element of the iterable and the previous evaluation result as the parameters. The injected value is used for the first parameter of the first evaluation, and the current item in the iterable is used as the second parameter.
        Since:
        11.1
      • chunk

        default RichIterable<DoubleIterable> chunk​(int size)
        Partitions elements in fixed size chunks.
        Parameters:
        size - the number of elements per chunk
        Returns:
        A RichIterable containing DoubleIterables of size size, except the last will be truncated if the elements don't divide evenly.
        Since:
        9.2
      • sum

        double sum()
      • summaryStatistics

        default java.util.DoubleSummaryStatistics summaryStatistics()
        Since:
        8.0
      • max

        double max()
      • maxIfEmpty

        double maxIfEmpty​(double defaultValue)
      • min

        double min()
      • minIfEmpty

        double minIfEmpty​(double defaultValue)
      • average

        double average()
      • averageIfEmpty

        default double averageIfEmpty​(double defaultValue)
        Since:
        9.0
      • median

        double median()
      • medianIfEmpty

        default double medianIfEmpty​(double defaultValue)
        Since:
        9.0
      • toSortedArray

        double[] toSortedArray()
      • toSortedList

        default MutableDoubleList toSortedList​(DoubleComparator comparator)
        Converts the collection to a MutableDoubleList implementation sorted using the provided comparator.
      • toSortedListBy

        default <T> MutableDoubleList toSortedListBy​(DoubleToObjectFunction<T> function)
        Converts the collection to a MutableDoubleListImplementation sorted based on the natural order of the key returned by function.
      • toSortedListBy

        default <T> MutableDoubleList toSortedListBy​(DoubleToObjectFunction<T> function,
                                                     java.util.Comparator<? super T> comparator)
        Converts the collection to a MutableDoubleList implementation, which is sorted based on the key returned by function using the provided comparator.