added in API level 24

IntUnaryOperator

public interface IntUnaryOperator

java.util.function.IntUnaryOperator


Represents an operation on a single int-valued operand that produces an int-valued result. This is the primitive type specialization of UnaryOperator for int.

This is a functional interface whose functional method is applyAsInt(int).

See also:

Summary

Public methods

default IntUnaryOperator andThen(IntUnaryOperator after)

Returns a composed operator that first applies this operator to its input, and then applies the after operator to the result.

abstract int applyAsInt(int operand)

Applies this operator to the given operand.

default IntUnaryOperator compose(IntUnaryOperator before)

Returns a composed operator that first applies the before operator to its input, and then applies this operator to the result.

static IntUnaryOperator identity()

Returns a unary operator that always returns its input argument.

Public methods

andThen

added in API level 24
public IntUnaryOperator andThen (IntUnaryOperator after)

Returns a composed operator that first applies this operator to its input, and then applies the after operator to the result. If evaluation of either operator throws an exception, it is relayed to the caller of the composed operator.

Parameters
after IntUnaryOperator: the operator to apply after this operator is applied

Returns
IntUnaryOperator a composed operator that first applies this operator and then applies the after operator

Throws
NullPointerException if after is null

applyAsInt

added in API level 24
public abstract int applyAsInt (int operand)

Applies this operator to the given operand.

Parameters
operand int: the operand

Returns
int the operator result

compose

added in API level 24
public IntUnaryOperator compose (IntUnaryOperator before)

Returns a composed operator that first applies the before operator to its input, and then applies this operator to the result. If evaluation of either operator throws an exception, it is relayed to the caller of the composed operator.

Parameters
before IntUnaryOperator: the operator to apply before this operator is applied

Returns
IntUnaryOperator a composed operator that first applies the before operator and then applies this operator

Throws
NullPointerException if before is null

identity

added in API level 24
public static IntUnaryOperator identity ()

Returns a unary operator that always returns its input argument.

Returns
IntUnaryOperator a unary operator that always returns its input argument