DoubleSummaryStatistics Class

Reference

Definition

Namespace:: Java.Util

Assembly:: Mono.Android.dll

Important

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A state object for collecting statistics such as count, min, max, sum, and average.

[Android.Runtime.Register("java/util/DoubleSummaryStatistics", ApiSince=24, DoNotGenerateAcw=true)]
public class DoubleSummaryStatistics : Java.Lang.Object, IDisposable, Java.Interop.IJavaPeerable, Java.Util.Functions.IDoubleConsumer

[<Android.Runtime.Register("java/util/DoubleSummaryStatistics", ApiSince=24, DoNotGenerateAcw=true)>]
type DoubleSummaryStatistics = class
    inherit Object
    interface IDoubleConsumer
    interface IJavaObject
    interface IDisposable
    interface IJavaPeerable

Inheritance: Object

Object
DoubleSummaryStatistics

Attributes: RegisterAttribute

Implements: IJavaObject IJavaPeerable IDoubleConsumer IDisposable

Remarks

A state object for collecting statistics such as count, min, max, sum, and average.

This class is designed to work with (though does not require) java.util.stream streams. For example, you can compute summary statistics on a stream of doubles with:

{@code
            DoubleSummaryStatistics stats = doubleStream.collect(DoubleSummaryStatistics::new,
                                                                 DoubleSummaryStatistics::accept,
                                                                 DoubleSummaryStatistics::combine);
            }

DoubleSummaryStatistics can be used as a java.util.stream.Stream#collect(Collector) reduction target for a java.util.stream.Stream stream. For example:

{@code
            DoubleSummaryStatistics stats = people.stream()
                .collect(Collectors.summarizingDouble(Person::getWeight));
            }

This computes, in a single pass, the count of people, as well as the minimum, maximum, sum, and average of their weights.

Added in 1.8.

Java documentation for java.util.DoubleSummaryStatistics.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Constructors

DoubleSummaryStatistics()	Constructs an empty instance with zero count, zero sum, `Double.POSITIVE_INFINITY` min, `Double.NEGATIVE_INFINITY` max and zero average.
DoubleSummaryStatistics(Int64, Double, Double, Double)	Constructs a non-empty instance with the specified `count`, `min`, `max`, and `sum`.
DoubleSummaryStatistics(IntPtr, JniHandleOwnership)

Properties

Average	Returns the arithmetic mean of values recorded, or zero if no values have been recorded.
Class	Returns the runtime class of this `Object`. (Inherited from Object)
Count	Return the count of values recorded.
Handle	The handle to the underlying Android instance. (Inherited from Object)
JniIdentityHashCode	(Inherited from Object)
JniPeerMembers
Max	Returns the maximum recorded value, `Double.NaN` if any recorded value was NaN or `Double.NEGATIVE_INFINITY` if no values were recorded.
Min	Returns the minimum recorded value, `Double.NaN` if any recorded value was NaN or `Double.POSITIVE_INFINITY` if no values were recorded.
PeerReference	(Inherited from Object)
Sum	Returns the sum of values recorded, or zero if no values have been recorded.
ThresholdClass
ThresholdType

Methods

Accept(Double)	Records another value into the summary information.
Clone()	Creates and returns a copy of this object. (Inherited from Object)
Combine(DoubleSummaryStatistics)	Combines the state of another `DoubleSummaryStatistics` into this one.
Dispose()	(Inherited from Object)
Dispose(Boolean)	(Inherited from Object)
Equals(Object)	Indicates whether some other object is "equal to" this one. (Inherited from Object)
GetHashCode()	Returns a hash code value for the object. (Inherited from Object)
JavaFinalize()	Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object)
Notify()	Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object)
NotifyAll()	Wakes up all threads that are waiting on this object's monitor. (Inherited from Object)
SetHandle(IntPtr, JniHandleOwnership)	Sets the Handle property. (Inherited from Object)
ToArray<T>()	(Inherited from Object)
ToString()	Returns a string representation of the object. (Inherited from Object)
UnregisterFromRuntime()	(Inherited from Object)
Wait()	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object)
Wait(Int64, Int32)	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object)
Wait(Int64)	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object)

Explicit Interface Implementations

IJavaPeerable.Disposed()	(Inherited from Object)
IJavaPeerable.DisposeUnlessReferenced()	(Inherited from Object)
IJavaPeerable.Finalized()	(Inherited from Object)
IJavaPeerable.JniManagedPeerState	(Inherited from Object)
IJavaPeerable.SetJniIdentityHashCode(Int32)	(Inherited from Object)
IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates)	(Inherited from Object)
IJavaPeerable.SetPeerReference(JniObjectReference)	(Inherited from Object)

Extension Methods

JavaCast<TResult>(IJavaObject)	Performs an Android runtime-checked type conversion.
JavaCast<TResult>(IJavaObject)
GetJniTypeName(IJavaPeerable)

Applies to

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