Interface UnaryOperator<T>
- Type Parameters:
-
T- the type of the operand and result of the operator
- All Superinterfaces:
- Function<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 UnaryOperator<T> extends 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 Function.apply(Object).
- Since:
- 1.8
- See Also:
Function
Methods
| Modifier and Type | Method and Description |
|---|---|
static <T> UnaryOperator<T> |
identity() Returns a unary operator that always returns its input argument. |
Methods inherited from interface java.util.function.Function
andThen, apply, compose Methods
identity
static <T> UnaryOperator<T> identity()
Returns a unary operator that always returns its input argument.
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https://docs.oracle.com/javase/8/docs/api/java/util/function/UnaryOperator.html