org.cactoos.scalar

Class SumOf

java.lang.Object

java.lang.Number

org.cactoos.scalar.SumOf

All Implemented Interfaces:

Serializable

public final class SumOf
extends Number

Int total of numbers.

Here is how you can use it to summarize numbers:

 int sum = new SumOf(1, 2, 3, 4).intValue();
 long sum = new SumOf(1L, 2L, 3L).longValue();
 int sum = new SumOf(numbers.toArray(new Integer[numbers.size()])).intValue();
 

This class implements Scalar, which throws a checked Exception. This may not be convenient in many cases. To make it more convenient and get rid of the checked exception you can use UncheckedScalar or IoCheckedScalar decorators.

There is no thread-safety guarantee.

Since:

0.9

Version:

$Id: eafbf05c6df616ca1c484c026efb6298b47526bb $

Author:

Yegor Bugayenko ([email protected]), Vseslav Sekorin ([email protected])

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SumOf(Double... src) Ctor.
SumOf(Float... src) Ctor.
SumOf(Integer... src) Ctor.
SumOf(Iterable<Number> src) Ctor.
SumOf(Long... src) Ctor.

Method Summary

Modifier and Type	Method and Description
double	doubleValue()
float	floatValue()
int	intValue()
long	longValue()

Methods inherited from class java.lang.Number

byteValue, shortValue

Methods inherited from class java.lang.Object

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

Constructor Detail

SumOf

public SumOf(Integer... src)

Ctor.

Parameters:

src - Numbers

Since:

0.22

SumOf

public SumOf(Long... src)

Ctor.

Parameters:

src - Numbers

Since:

0.22

SumOf

public SumOf(Double... src)

Ctor.

Parameters:

src - Numbers

Since:

0.22

SumOf

public SumOf(Float... src)

Ctor.

Parameters:

src - Numbers

Since:

0.22

SumOf

public SumOf(Iterable<Number> src)

Ctor.

Parameters:

src - The iterable

Method Detail

intValue

public int intValue()

Specified by:

intValue in class Number

longValue

public long longValue()

Specified by:

longValue in class Number

floatValue

public float floatValue()

Specified by:

floatValue in class Number

doubleValue

public double doubleValue()

Specified by:

doubleValue in class Number