Example usage for java.util.function DoubleUnaryOperator applyAsDouble

Introduction

In this page you can find the example usage for java.util.function DoubleUnaryOperator applyAsDouble.

Prototype

double applyAsDouble(double operand);

Source Link

Document

Applies this operator to the given operand.

Usage

From source file:Main.java

public static void main(String[] args) {
    DoubleUnaryOperator id = DoubleUnaryOperator.identity();

    System.out.println(id.applyAsDouble(3.14));
}

From source file:Main.java

public static void main(String[] args) {
    DoubleUnaryOperator dl = (x) -> {
        return x * x;
    };//from   w  w  w.  j a v a  2  s. co m
    System.out.println(dl.applyAsDouble(3.14));
}

From source file:info.rmarcus.birkhoffvonneumann.MatrixUtils.java

public static void apply(double[][] dest, double[][] a, DoubleUnaryOperator f) {
    for (int i = 0; i < dest.length; i++) {
        for (int j = 0; j < dest[i].length; j++) {
            dest[i][j] = f.applyAsDouble(a[i][j]);
        }/*from w  ww .j  ava 2  s. c  o  m*/
    }
}

From source file:at.gridtec.lambda4j.function.bi.obj.ObjDoubleToDoubleFunction.java

/**
 * Creates a {@link ObjDoubleToDoubleFunction} which uses the {@code second} parameter of this one as argument for
 * the given {@link DoubleUnaryOperator}.
 *
 * @param <T> The type of the first argument to the function
 * @param operator The operator which accepts the {@code second} parameter of this one
 * @return Creates a {@code ObjDoubleToDoubleFunction} which uses the {@code second} parameter of this one as
 * argument for the given {@code DoubleUnaryOperator}.
 * @throws NullPointerException If given argument is {@code null}
 *///from   w  w  w  .  j  a v  a 2  s . c  om
@Nonnull
static <T> ObjDoubleToDoubleFunction<T> onlySecond(@Nonnull final DoubleUnaryOperator operator) {
    Objects.requireNonNull(operator);
    return (t, value) -> operator.applyAsDouble(value);
}

From source file:at.gridtec.lambda4j.operator.binary.DoubleBinaryOperator2.java

/**
 * Creates a {@link DoubleBinaryOperator2} which uses the {@code first} parameter of this one as argument for the
 * given {@link DoubleUnaryOperator}.//from   w  w w  .  ja v a 2 s.  c om
 *
 * @param operator The operator which accepts the {@code first} parameter of this one
 * @return Creates a {@code DoubleBinaryOperator2} which uses the {@code first} parameter of this one as argument
 * for the given {@code DoubleUnaryOperator}.
 * @throws NullPointerException If given argument is {@code null}
 */
@Nonnull
static DoubleBinaryOperator2 onlyFirst(@Nonnull final DoubleUnaryOperator operator) {
    Objects.requireNonNull(operator);
    return (value1, value2) -> operator.applyAsDouble(value1);
}

From source file:at.gridtec.lambda4j.operator.binary.DoubleBinaryOperator2.java

/**
 * Creates a {@link DoubleBinaryOperator2} which uses the {@code second} parameter of this one as argument for the
 * given {@link DoubleUnaryOperator}.//from  w ww.j av  a2s  .  com
 *
 * @param operator The operator which accepts the {@code second} parameter of this one
 * @return Creates a {@code DoubleBinaryOperator2} which uses the {@code second} parameter of this one as argument
 * for the given {@code DoubleUnaryOperator}.
 * @throws NullPointerException If given argument is {@code null}
 */
@Nonnull
static DoubleBinaryOperator2 onlySecond(@Nonnull final DoubleUnaryOperator operator) {
    Objects.requireNonNull(operator);
    return (value1, value2) -> operator.applyAsDouble(value2);
}

From source file:at.gridtec.lambda4j.operator.ternary.DoubleTernaryOperator.java

/**
 * Creates a {@link DoubleTernaryOperator} which uses the {@code first} parameter of this one as argument for the
 * given {@link DoubleUnaryOperator}./* w  w w . ja va 2  s.com*/
 *
 * @param operator The operator which accepts the {@code first} parameter of this one
 * @return Creates a {@code DoubleTernaryOperator} which uses the {@code first} parameter of this one as argument
 * for the given {@code DoubleUnaryOperator}.
 * @throws NullPointerException If given argument is {@code null}
 */
@Nonnull
static DoubleTernaryOperator onlyFirst(@Nonnull final DoubleUnaryOperator operator) {
    Objects.requireNonNull(operator);
    return (value1, value2, value3) -> operator.applyAsDouble(value1);
}

From source file:at.gridtec.lambda4j.operator.ternary.DoubleTernaryOperator.java

/**
 * Creates a {@link DoubleTernaryOperator} which uses the {@code second} parameter of this one as argument for the
 * given {@link DoubleUnaryOperator}./*from   w w  w .j  ava  2  s . c o  m*/
 *
 * @param operator The operator which accepts the {@code second} parameter of this one
 * @return Creates a {@code DoubleTernaryOperator} which uses the {@code second} parameter of this one as argument
 * for the given {@code DoubleUnaryOperator}.
 * @throws NullPointerException If given argument is {@code null}
 */
@Nonnull
static DoubleTernaryOperator onlySecond(@Nonnull final DoubleUnaryOperator operator) {
    Objects.requireNonNull(operator);
    return (value1, value2, value3) -> operator.applyAsDouble(value2);
}

From source file:at.gridtec.lambda4j.operator.ternary.DoubleTernaryOperator.java

/**
 * Creates a {@link DoubleTernaryOperator} which uses the {@code third} parameter of this one as argument for the
 * given {@link DoubleUnaryOperator}.// w  w  w .  j av a 2 s  . com
 *
 * @param operator The operator which accepts the {@code third} parameter of this one
 * @return Creates a {@code DoubleTernaryOperator} which uses the {@code third} parameter of this one as argument
 * for the given {@code DoubleUnaryOperator}.
 * @throws NullPointerException If given argument is {@code null}
 */
@Nonnull
static DoubleTernaryOperator onlyThird(@Nonnull final DoubleUnaryOperator operator) {
    Objects.requireNonNull(operator);
    return (value1, value2, value3) -> operator.applyAsDouble(value3);
}

From source file:at.gridtec.lambda4j.function.tri.obj.ObjBiDoubleToDoubleFunction.java

/**
 * Creates a {@link ObjBiDoubleToDoubleFunction} which uses the {@code second} parameter of this one as argument for
 * the given {@link DoubleUnaryOperator}.
 *
 * @param <T> The type of the first argument to the function
 * @param operator The operator which accepts the {@code second} parameter of this one
 * @return Creates a {@code ObjBiDoubleToDoubleFunction} which uses the {@code second} parameter of this one as
 * argument for the given {@code DoubleUnaryOperator}.
 * @throws NullPointerException If given argument is {@code null}
 *///w  ww .  ja  v a 2s. c o m
@Nonnull
static <T> ObjBiDoubleToDoubleFunction<T> onlySecond(@Nonnull final DoubleUnaryOperator operator) {
    Objects.requireNonNull(operator);
    return (t, value1, value2) -> operator.applyAsDouble(value1);
}