Example usage for java.util.function DoublePredicate test

Introduction

In this page you can find the example usage for java.util.function DoublePredicate test.

Prototype

boolean test(double value);

Source Link

Document

Evaluates this predicate on the given argument.

Usage

From source file:Main.java

public static void main(String[] args) {
    DoublePredicate dp = (d) -> d > 0;

    System.out.println(dp.test(0.5));

}

From source file:Main.java

public static void main(String[] args) {
    DoublePredicate dp = (d) -> d > 0;

    System.out.println(dp.test(0.5));
    System.out.println(dp.negate().test(0.5));
}

From source file:gedi.util.datastructure.array.functions.NumericArrayFunction.java

public static NumericArrayFunction fraction(final DoublePredicate predicate) {
    return new NumericArrayFunction() {

        @Override/*w w  w  . ja va  2 s  .co  m*/
        public double applyAsDouble(NumericArray value) {
            int re = 0;
            for (int i = 0; i < value.length(); i++)
                if (predicate.test(value.getDouble(i)))
                    re++;
            return (double) re / value.length();
        }
    };
}

From source file:gedi.util.datastructure.array.functions.NumericArrayFunction.java

public static NumericArrayFunction count(final DoublePredicate predicate) {
    return new NumericArrayFunction() {

        @Override/*  w ww  .  j  av  a2  s . c  o m*/
        public double applyAsDouble(NumericArray value) {
            int re = 0;
            for (int i = 0; i < value.length(); i++)
                if (predicate.test(value.getDouble(i)))
                    re++;
            return re;
        }
    };
}

From source file:at.gridtec.lambda4j.predicate.bi.BiDoublePredicate.java

/**
 * Creates a {@link BiDoublePredicate} which uses the {@code first} parameter of this one as argument for the given
 * {@link DoublePredicate}./*  ww w .  jav  a 2 s. com*/
 *
 * @param predicate The predicate which accepts the {@code first} parameter of this one
 * @return Creates a {@code BiDoublePredicate} which uses the {@code first} parameter of this one as argument for
 * the given {@code DoublePredicate}.
 * @throws NullPointerException If given argument is {@code null}
 */
@Nonnull
static BiDoublePredicate onlyFirst(@Nonnull final DoublePredicate predicate) {
    Objects.requireNonNull(predicate);
    return (value1, value2) -> predicate.test(value1);
}

From source file:at.gridtec.lambda4j.predicate.bi.BiDoublePredicate.java

/**
 * Creates a {@link BiDoublePredicate} which uses the {@code second} parameter of this one as argument for the given
 * {@link DoublePredicate}.//from  w ww. j  a  v a2 s .  co m
 *
 * @param predicate The predicate which accepts the {@code second} parameter of this one
 * @return Creates a {@code BiDoublePredicate} which uses the {@code second} parameter of this one as argument for
 * the given {@code DoublePredicate}.
 * @throws NullPointerException If given argument is {@code null}
 */
@Nonnull
static BiDoublePredicate onlySecond(@Nonnull final DoublePredicate predicate) {
    Objects.requireNonNull(predicate);
    return (value1, value2) -> predicate.test(value2);
}

From source file:at.gridtec.lambda4j.predicate.bi.obj.ObjDoublePredicate.java

/**
 * Creates a {@link ObjDoublePredicate} which uses the {@code second} parameter of this one as argument for the
 * given {@link DoublePredicate}.//w ww. j  av  a2s .  c o  m
 *
 * @param <T> The type of the first argument to the predicate
 * @param predicate The predicate which accepts the {@code second} parameter of this one
 * @return Creates a {@code ObjDoublePredicate} which uses the {@code second} parameter of this one as argument for
 * the given {@code DoublePredicate}.
 * @throws NullPointerException If given argument is {@code null}
 */
@Nonnull
static <T> ObjDoublePredicate<T> onlySecond(@Nonnull final DoublePredicate predicate) {
    Objects.requireNonNull(predicate);
    return (t, value) -> predicate.test(value);
}

From source file:at.gridtec.lambda4j.predicate.tri.TriDoublePredicate.java

/**
 * Creates a {@link TriDoublePredicate} which uses the {@code first} parameter of this one as argument for the given
 * {@link DoublePredicate}./*from   w w w  .  j  a v  a 2 s.  com*/
 *
 * @param predicate The predicate which accepts the {@code first} parameter of this one
 * @return Creates a {@code TriDoublePredicate} which uses the {@code first} parameter of this one as argument for
 * the given {@code DoublePredicate}.
 * @throws NullPointerException If given argument is {@code null}
 */
@Nonnull
static TriDoublePredicate onlyFirst(@Nonnull final DoublePredicate predicate) {
    Objects.requireNonNull(predicate);
    return (value1, value2, value3) -> predicate.test(value1);
}

From source file:at.gridtec.lambda4j.predicate.tri.TriDoublePredicate.java

/**
 * Creates a {@link TriDoublePredicate} which uses the {@code second} parameter of this one as argument for the
 * given {@link DoublePredicate}./*from w w w . ja v  a 2s . co m*/
 *
 * @param predicate The predicate which accepts the {@code second} parameter of this one
 * @return Creates a {@code TriDoublePredicate} which uses the {@code second} parameter of this one as argument for
 * the given {@code DoublePredicate}.
 * @throws NullPointerException If given argument is {@code null}
 */
@Nonnull
static TriDoublePredicate onlySecond(@Nonnull final DoublePredicate predicate) {
    Objects.requireNonNull(predicate);
    return (value1, value2, value3) -> predicate.test(value2);
}

From source file:at.gridtec.lambda4j.predicate.tri.TriDoublePredicate.java

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