T
- the type of the operands and result of the operator@FunctionalInterface public interface BinaryOperator<T> extends BiFunction<T,T,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)
.
BiFunction
, UnaryOperator
static <T> BinaryOperator<T> minBy(Comparator<? super T> comparator)
Returns a BinaryOperator
which returns the lesser of two elements according to the specified Comparator
.
T
- the type of the input arguments of the comparatorcomparator
- a Comparator
for comparing the two valuesBinaryOperator
which returns the lesser of its operands, according to the supplied Comparator
NullPointerException
- if the argument is nullstatic <T> BinaryOperator<T> maxBy(Comparator<? super T> comparator)
Returns a BinaryOperator
which returns the greater of two elements according to the specified Comparator
.
T
- the type of the input arguments of the comparatorcomparator
- a Comparator
for comparing the two valuesBinaryOperator
which returns the greater of its operands, according to the supplied Comparator
NullPointerException
- if the argument is null
© 1993–2017, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.