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public interface UnaryOperator
implements Function<T, T>


Represents an operation on a single operand that produces a result of the same type as its operand. This is a specialization of Function for the case where the operand and result are of the same type.

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

See also:


Public methods

static <T> UnaryOperator<T> identity()

Returns a unary operator that always returns its input argument.

Inherited methods

From interface java.util.function.Function

Public methods


added in API level 24
UnaryOperator<T> identity ()

Returns a unary operator that always returns its input argument.

UnaryOperator<T> a unary operator that always returns its input argument

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