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added in API level 24

BinaryOperator

public interface BinaryOperator
implements BiFunction<T, T, T>

java.util.function.BinaryOperator<T>


Represents an operation upon two operands of the same type, producing a result of the same type as the operands. This is a specialization of BiFunction for the case where the operands and the result are all of the same type.

This is a functional interface whose functional method is BiFunction.apply(Object, Object).

Summary

Public methods

static <T> BinaryOperator<T> maxBy(Comparator<? super T> comparator)

Returns a BinaryOperator which returns the greater of two elements according to the specified Comparator.

static <T> BinaryOperator<T> minBy(Comparator<? super T> comparator)

Returns a BinaryOperator which returns the lesser of two elements according to the specified Comparator.

Inherited methods

Public methods

maxBy

added in API level 24
public static BinaryOperator<T> maxBy (Comparator<? super T> comparator)

Returns a BinaryOperator which returns the greater of two elements according to the specified Comparator.

Parameters
comparator Comparator: a Comparator for comparing the two values

Returns
BinaryOperator<T> a BinaryOperator which returns the greater of its operands, according to the supplied Comparator

Throws
NullPointerException if the argument is null

minBy

added in API level 24
public static BinaryOperator<T> minBy (Comparator<? super T> comparator)

Returns a BinaryOperator which returns the lesser of two elements according to the specified Comparator.

Parameters
comparator Comparator: a Comparator for comparing the two values

Returns
BinaryOperator<T> a BinaryOperator which returns the lesser of its operands, according to the supplied Comparator

Throws
NullPointerException if the argument is null