compact1, compact2, compact3
java.util.function
Interface BinaryOperator<T>
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- Type Parameters:
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T- the type of the operands and result of the operator
- All Superinterfaces:
- BiFunction<T,T,T>
- Functional Interface:
- This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@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 ofBiFunctionfor 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).- Since:
- 1.8
- See Also:
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BiFunction,UnaryOperator
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Method Summary
All Methods Static Methods Default Methods Modifier and Type Method and Description static <T> BinaryOperator<T>maxBy(Comparator<? super T> comparator)Returns aBinaryOperatorwhich returns the greater of two elements according to the specifiedComparator.static <T> BinaryOperator<T>minBy(Comparator<? super T> comparator)Returns aBinaryOperatorwhich returns the lesser of two elements according to the specifiedComparator.-
Methods inherited from interface java.util.function.BiFunction
andThen, apply
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Method Detail
minBy
static <T> BinaryOperator<T> minBy(Comparator<? super T> comparator)
Returns aBinaryOperatorwhich returns the lesser of two elements according to the specifiedComparator.- Type Parameters:
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T- the type of the input arguments of the comparator - Parameters:
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comparator- aComparatorfor comparing the two values - Returns:
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a
BinaryOperatorwhich returns the lesser of its operands, according to the suppliedComparator - Throws:
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NullPointerException- if the argument is null
maxBy
static <T> BinaryOperator<T> maxBy(Comparator<? super T> comparator)
Returns aBinaryOperatorwhich returns the greater of two elements according to the specifiedComparator.- Type Parameters:
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T- the type of the input arguments of the comparator - Parameters:
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comparator- aComparatorfor comparing the two values - Returns:
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a
BinaryOperatorwhich returns the greater of its operands, according to the suppliedComparator - Throws:
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NullPointerException- if the argument is null
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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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