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.
|
Modifier and Type | Field and Description |
---|---|
static Class<Double> |
Double.TYPE
The
Class instance representing the primitive type
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 . |
Modifier and Type | Method and Description |
---|---|
int |
Double.compareTo(Double anotherDouble)
Compares two
Double objects numerically. |
Modifier and Type | Method and Description |
---|---|
default Double |
PrimitiveIterator.OfDouble.next()
Returns the next element in the iteration.
|
Modifier and Type | Method and Description |
---|---|
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 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 boolean |
Spliterator.OfDouble.tryAdvance(Consumer<? super Double> action)
If a remaining element exists, performs the given action on it,
returning
true ; else returns false . |
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. |
Modifier and Type | Field and Description |
---|---|
static SimpleType<Double> |
SimpleType.DOUBLE
The
SimpleType instance describing values whose
Java class name is java.lang.Double . |
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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.
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