Uses of Class
com.landawn.abacus.util.u.OptionalDouble

Packages that use u.OptionalDouble

Package	Description
com.landawn.abacus.util
com.landawn.abacus.util.stream

Uses of u.OptionalDouble in com.landawn.abacus.util

Fields in com.landawn.abacus.util with type parameters of type u.OptionalDouble

Modifier and Type	Field	Description
static final ToDoubleFunction<u.OptionalDouble>	Fn.GET_AS_DOUBLE
static final Predicate<u.OptionalDouble>	Fn.IS_PRESENT_DOUBLE

Methods in com.landawn.abacus.util that return u.OptionalDouble

Modifier and Type	Method	Description
u.OptionalDouble	ByteList.average()
u.OptionalDouble	ByteList.average(int fromIndex, int toIndex)
u.OptionalDouble	CharList.average()
u.OptionalDouble	CharList.average(int fromIndex, int toIndex)
u.OptionalDouble	DoubleList.average()
u.OptionalDouble	DoubleList.average(int fromIndex, int toIndex)
u.OptionalDouble	FloatList.average()
u.OptionalDouble	FloatList.average(int fromIndex, int toIndex)
u.OptionalDouble	IntList.average()
u.OptionalDouble	IntList.average(int fromIndex, int toIndex)
u.OptionalDouble	KahanSummation.average()
u.OptionalDouble	LongList.average()
u.OptionalDouble	LongList.average(int fromIndex, int toIndex)
u.OptionalDouble	ShortList.average()
u.OptionalDouble	ShortList.average(int fromIndex, int toIndex)
<E2 extends Exception> u.OptionalDouble	CheckedStream.averageDouble(Throwables.ToDoubleFunction<? super T,E2> func)
static <T extends Number> u.OptionalDouble	Iterables.averageDouble(Iterable<? extends T> c)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T, E extends Exception> u.OptionalDouble	Iterables.averageDouble(Iterable<? extends T> c, Throwables.ToDoubleFunction<? super T,E> func)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T extends Number> u.OptionalDouble	Iterables.averageDouble(Collection<? extends T> c, int fromIndex, int toIndex)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T, E extends Exception> u.OptionalDouble	Iterables.averageDouble(Collection<? extends T> c, int fromIndex, int toIndex, Throwables.ToDoubleFunction<? super T,E> func)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T extends Number> u.OptionalDouble	Iterables.averageDouble(T[] a)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T extends Number> u.OptionalDouble	Iterables.averageDouble(T[] a, int fromIndex, int toIndex)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T, E extends Exception> u.OptionalDouble	Iterables.averageDouble(T[] a, int fromIndex, int toIndex, Throwables.ToDoubleFunction<? super T,E> func)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T, E extends Exception> u.OptionalDouble	Iterables.averageDouble(T[] a, Throwables.ToDoubleFunction<? super T,E> func)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
<E2 extends Exception> u.OptionalDouble	CheckedStream.averageInt(Throwables.ToIntFunction<? super T,E2> func)
static <T extends Number> u.OptionalDouble	Iterables.averageInt(Iterable<? extends T> c)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T, E extends Exception> u.OptionalDouble	Iterables.averageInt(Iterable<? extends T> c, Throwables.ToIntFunction<? super T,E> func)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T extends Number> u.OptionalDouble	Iterables.averageInt(Collection<? extends T> c, int fromIndex, int toIndex)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T, E extends Exception> u.OptionalDouble	Iterables.averageInt(Collection<? extends T> c, int fromIndex, int toIndex, Throwables.ToIntFunction<? super T,E> func)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T extends Number> u.OptionalDouble	Iterables.averageInt(T[] a)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T extends Number> u.OptionalDouble	Iterables.averageInt(T[] a, int fromIndex, int toIndex)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T, E extends Exception> u.OptionalDouble	Iterables.averageInt(T[] a, int fromIndex, int toIndex, Throwables.ToIntFunction<? super T,E> func)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T, E extends Exception> u.OptionalDouble	Iterables.averageInt(T[] a, Throwables.ToIntFunction<? super T,E> func)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
<E2 extends Exception> u.OptionalDouble	CheckedStream.averageLong(Throwables.ToLongFunction<? super T,E2> func)
static <T extends Number> u.OptionalDouble	Iterables.averageLong(Iterable<? extends T> c)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T, E extends Exception> u.OptionalDouble	Iterables.averageLong(Iterable<? extends T> c, Throwables.ToLongFunction<? super T,E> func)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T extends Number> u.OptionalDouble	Iterables.averageLong(Collection<? extends T> c, int fromIndex, int toIndex)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T, E extends Exception> u.OptionalDouble	Iterables.averageLong(Collection<? extends T> c, int fromIndex, int toIndex, Throwables.ToLongFunction<? super T,E> func)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T extends Number> u.OptionalDouble	Iterables.averageLong(T[] a)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T extends Number> u.OptionalDouble	Iterables.averageLong(T[] a, int fromIndex, int toIndex)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T, E extends Exception> u.OptionalDouble	Iterables.averageLong(T[] a, int fromIndex, int toIndex, Throwables.ToLongFunction<? super T,E> func)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T, E extends Exception> u.OptionalDouble	Iterables.averageLong(T[] a, Throwables.ToLongFunction<? super T,E> func)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
u.OptionalDouble	LongMultiset.averageOfOccurrences()	Average of occurrences.
u.OptionalDouble	Multiset.averageOfOccurrences()	Average of occurrences.
static u.OptionalDouble	Strings.StrUtil.createDouble(String str)	Returns an empty OptionalDouble if the specified string is blank or a invalid double string.
static u.OptionalDouble	u.OptionalDouble.empty()
<E extends Exception> u.OptionalDouble	u.OptionalDouble.filter(Throwables.DoublePredicate<E> predicate)
<E extends Exception> u.OptionalDouble	DoubleList.findFirst(Throwables.DoublePredicate<E> predicate)
<E extends Exception> u.OptionalDouble	DoubleList.findLast(Throwables.DoublePredicate<E> predicate)
u.OptionalDouble	DoubleIterator.first()
u.OptionalDouble	DoubleList.first()
<E extends Exception> u.OptionalDouble	u.OptionalDouble.flatMap(Throwables.DoubleFunction<u.OptionalDouble,E> mapper)
static u.OptionalDouble	u.OptionalDouble.from(OptionalDouble op)
static <K> u.OptionalDouble	Maps.getDouble(Map<? super K,?> map, K key)	Returns an empty OptionalDouble if the specified map is empty, or no value found by the specified key, or the value is null.
<E extends Exception> u.OptionalDouble	u.OptionalDouble.ifPresent(Throwables.DoubleConsumer<E> action)
<E extends Exception, E2 extends Exception> u.OptionalDouble	u.OptionalDouble.ifPresentOrElse(Throwables.DoubleConsumer<E> action, Throwables.Runnable<E2> emptyAction)	If present or else.
u.OptionalDouble	DoubleList.kthLargest(int k)
u.OptionalDouble	DoubleList.kthLargest(int fromIndex, int toIndex, int k)
u.OptionalDouble	DoubleIterator.last()
u.OptionalDouble	DoubleList.last()
<E extends Exception> u.OptionalDouble	u.OptionalDouble.map(Throwables.DoubleUnaryOperator<E> mapper)
<E extends Exception> u.OptionalDouble	u.Nullable.mapToDouble(Throwables.ToDoubleFunction<? super T,E> mapper)	Map to double.
<E extends Exception> u.OptionalDouble	u.Optional.mapToDouble(Throwables.ToDoubleFunction<? super T,E> mapper)	Map to double.
<E extends Exception> u.OptionalDouble	u.OptionalFloat.mapToDouble(Throwables.ToDoubleFunction<Float,E> mapper)	Map to double.
<E extends Exception> u.OptionalDouble	u.OptionalInt.mapToDouble(Throwables.ToDoubleFunction<Integer,E> mapper)	Map to double.
<E extends Exception> u.OptionalDouble	u.OptionalLong.mapToDouble(Throwables.ToDoubleFunction<Long,E> mapper)	Map to double.
<E extends Exception> u.OptionalDouble	u.Nullable.mapToDoubleIfNotNull(Throwables.ToDoubleFunction<? super T,E> mapper)	Map to double if not null.
u.OptionalDouble	DoubleList.max()
u.OptionalDouble	DoubleList.max(int fromIndex, int toIndex)
static u.OptionalDouble	Iterables.max(double... a)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty.
static <T, E extends Exception> u.OptionalDouble	Iterables.maxDouble(Iterable<? extends T> c, Throwables.ToDoubleFunction<? super T,E> valueExtractor)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty.
static <T, E extends Exception> u.OptionalDouble	Iterables.maxDouble(Iterator<? extends T> iter, Throwables.ToDoubleFunction<? super T,E> valueExtractor)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty.
static <T, E extends Exception> u.OptionalDouble	Iterables.maxDouble(T[] a, Throwables.ToDoubleFunction<? super T,E> valueExtractor)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty.
u.OptionalDouble	DoubleList.median()
u.OptionalDouble	DoubleList.median(int fromIndex, int toIndex)
u.OptionalDouble	DoubleList.min()
u.OptionalDouble	DoubleList.min(int fromIndex, int toIndex)
static u.OptionalDouble	Iterables.min(double... a)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty.
static <T, E extends Exception> u.OptionalDouble	Iterables.minDouble(Iterable<? extends T> c, Throwables.ToDoubleFunction<? super T,E> valueExtractor)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty.
static <T, E extends Exception> u.OptionalDouble	Iterables.minDouble(Iterator<? extends T> iter, Throwables.ToDoubleFunction<? super T,E> valueExtractor)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty.
static <T, E extends Exception> u.OptionalDouble	Iterables.minDouble(T[] a, Throwables.ToDoubleFunction<? super T,E> valueExtractor)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty.
static u.OptionalDouble	u.OptionalDouble.of(double value)
static u.OptionalDouble	u.OptionalDouble.ofNullable(Double val)
<E extends Exception> u.OptionalDouble	u.OptionalDouble.or(Throwables.Supplier<u.OptionalDouble,E> supplier)
<E extends Exception> u.OptionalDouble	DoubleList.reduce(Throwables.DoubleBinaryOperator<E> accumulator)	This is equivalent to:
static <T extends Number> u.OptionalDouble	Iterables.sumDouble(Iterable<? extends T> c)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.
static <T, E extends Exception> u.OptionalDouble	Iterables.sumDouble(Iterable<? extends T> c, Throwables.ToDoubleFunction<? super T,E> func)	Returns OptionalDouble.empty() if the specified Array/Collection is null or empty, or fromIndex == toIndex.

Methods in com.landawn.abacus.util that return types with arguments of type u.OptionalDouble

Modifier and Type	Method	Description
static Pair<Double,u.OptionalDouble>	Median.of(double... a)	Returns a Pair with left is the value at the index of (a.length - 1) / 2 when the array is sorted, and the right is the value at the index of a.length / 2 if the length of array is even.
static Pair<Double,u.OptionalDouble>	Median.of(double[] a, int fromIndex, int toIndex)	Returns a Pair with left is the value at the index of (a.length - 1) / 2 when the array is sorted, and the right is the value at the index of a.length / 2 if the length of array is even.

Methods in com.landawn.abacus.util with parameters of type u.OptionalDouble

Modifier and Type	Method	Description
int	u.OptionalDouble.compareTo(u.OptionalDouble optional)

Method parameters in com.landawn.abacus.util with type arguments of type u.OptionalDouble

Modifier and Type	Method	Description
<E extends Exception> u.OptionalDouble	u.OptionalDouble.flatMap(Throwables.DoubleFunction<u.OptionalDouble,E> mapper)
CheckedStream<Double,E>	CheckedStream.mapPartialToDouble(Throwables.Function<? super T,u.OptionalDouble,E> mapper)	Note: copied from StreamEx: https://github.com/amaembo/streamex
<E extends Exception> u.OptionalDouble	u.OptionalDouble.or(Throwables.Supplier<u.OptionalDouble,E> supplier)

Uses of u.OptionalDouble in com.landawn.abacus.util.stream

Methods in com.landawn.abacus.util.stream that return u.OptionalDouble

Modifier and Type	Method	Description
abstract u.OptionalDouble	ByteStream.average()
abstract u.OptionalDouble	CharStream.average()
abstract u.OptionalDouble	DoubleStream.average()
abstract u.OptionalDouble	FloatStream.average()
abstract u.OptionalDouble	IntStream.average()
abstract u.OptionalDouble	LongStream.average()
abstract u.OptionalDouble	ShortStream.average()
abstract u.OptionalDouble	Stream.averageDouble(ToDoubleFunction<? super T> mapper)
abstract u.OptionalDouble	Stream.averageInt(ToIntFunction<? super T> mapper)
abstract u.OptionalDouble	Stream.averageLong(ToLongFunction<? super T> mapper)
abstract <E extends Exception> u.OptionalDouble	DoubleStream.findAny(Throwables.DoublePredicate<E> predicate)
abstract <E extends Exception> u.OptionalDouble	DoubleStream.findFirst(Throwables.DoublePredicate<E> predicate)
abstract <E extends Exception> u.OptionalDouble	DoubleStream.findFirstOrAny(Throwables.DoublePredicate<E> predicateForFirst)	Returns the first element matched by predicateForFirst if found or the first element if this stream is not empty Otherwise an empty OptionalDouble will be returned.
abstract <E extends Exception> u.OptionalDouble	DoubleStream.findFirstOrLast(Throwables.DoublePredicate<E> predicateForFirst)	Returns the first element matched by predicateForFirst if found or the last element if this stream is not empty Otherwise an empty OptionalDouble will be returned.
abstract <E extends Exception> u.OptionalDouble	DoubleStream.findLast(Throwables.DoublePredicate<E> predicate)	Consider using: stream.reversed().findFirst(predicate) for better performance if possible.
abstract u.OptionalDouble	DoubleStream.kthLargest(int k)
abstract u.OptionalDouble	DoubleStream.max()
abstract u.OptionalDouble	DoubleStream.min()
abstract u.OptionalDouble	DoubleStream.reduce(DoubleBinaryOperator op)

Methods in com.landawn.abacus.util.stream that return types with arguments of type u.OptionalDouble

Modifier and Type	Method	Description
static <T> Collector<T,?,u.OptionalDouble>	Collectors.averagingDouble(ToDoubleFunction<? super T> mapper)
static <T> Collector<T,?,u.OptionalDouble>	Collectors.averagingInt(ToIntFunction<? super T> mapper)
static <T> Collector<T,?,u.OptionalDouble>	Collectors.averagingLong(ToLongFunction<? super T> mapper)

Methods in com.landawn.abacus.util.stream with parameters of type u.OptionalDouble

Modifier and Type	Method	Description
static DoubleStream	DoubleStream.of(u.OptionalDouble op)

Method parameters in com.landawn.abacus.util.stream with type arguments of type u.OptionalDouble

Modifier and Type	Method	Description
abstract DoubleStream	DoubleStream.mapPartial(DoubleFunction<u.OptionalDouble> mapper)	Note: copied from StreamEx: https://github.com/amaembo/streamex
abstract DoubleStream	Stream.mapPartialToDouble(Function<? super T,u.OptionalDouble> mapper)	Note: copied from StreamEx: https://github.com/amaembo/streamex