org.cactoos.scalar

Class SumOfDoubleScalar

java.lang.Object

org.cactoos.scalar.SumOfDoubleScalar

All Implemented Interfaces:

Scalar<Double>

public final class SumOfDoubleScalar
extends Object
implements Scalar<Double>

Double Scalar which sums up the values of other Scalars of the same type.

Here is how you can use it to summarize double numbers:

 double sum = new SumOfDoubleScalar(() -> 1.1,() -> 2.1, () -> 3.1).value();
 

This class implements Scalar, which throws a checked Exception. Despite that this class does NOT throw a checked exception.

There is no thread-safety guarantee.

Since:

0.30

Constructor Summary

Constructors

Constructor and Description
SumOfDoubleScalar(Scalar<Double>... src) Ctor.

Method Summary

Modifier and Type	Method and Description
Double	value() Convert it to the value.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SumOfDoubleScalar

@SafeVarargs
public SumOfDoubleScalar(Scalar<Double>... src)

Ctor.

Parameters:

src - Varargs of Scalar to sum up values from

Since:

0.30

Method Detail

value

public Double value()

Description copied from interface: Scalar

Convert it to the value.

Specified by:

value in interface Scalar<Double>

Returns:

The value