Java Code Examples for java.util.stream.StreamSupport#doubleStream()

The following examples show how to use java.util.stream.StreamSupport#doubleStream() . These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source Project: jdk1.8-source-analysis   File: Random.java    License: Apache License 2.0 3 votes vote down vote up
/**
 * Returns a stream producing the given {@code streamSize} number of
 * pseudorandom {@code double} values, each between zero
 * (inclusive) and one (exclusive).
 *
 * <p>A pseudorandom {@code double} value is generated as if it's the result
 * of calling the method {@link #nextDouble()}.
 *
 * @param streamSize the number of values to generate
 * @return a stream of {@code double} values
 * @throws IllegalArgumentException if {@code streamSize} is
 *         less than zero
 * @since 1.8
 */
public DoubleStream doubles(long streamSize) {
    if (streamSize < 0L)
        throw new IllegalArgumentException(BadSize);
    return StreamSupport.doubleStream
            (new RandomDoublesSpliterator
                     (this, 0L, streamSize, Double.MAX_VALUE, 0.0),
             false);
}
 
Example 2
Source Project: jdk1.8-source-analysis   File: Random.java    License: Apache License 2.0 3 votes vote down vote up
/**
 * Returns an effectively unlimited stream of pseudorandom {@code
 * double} values, each between zero (inclusive) and one
 * (exclusive).
 *
 * <p>A pseudorandom {@code double} value is generated as if it's the result
 * of calling the method {@link #nextDouble()}.
 *
 * @implNote This method is implemented to be equivalent to {@code
 * doubles(Long.MAX_VALUE)}.
 *
 * @return a stream of pseudorandom {@code double} values
 * @since 1.8
 */
public DoubleStream doubles() {
    return StreamSupport.doubleStream
            (new RandomDoublesSpliterator
                     (this, 0L, Long.MAX_VALUE, Double.MAX_VALUE, 0.0),
             false);
}
 
Example 3
/**
 * Returns an effectively unlimited stream of pseudorandom {@code
 * double} values, each between zero (inclusive) and one
 * (exclusive).
 *
 * @implNote This method is implemented to be equivalent to {@code
 * doubles(Long.MAX_VALUE)}.
 *
 * @return a stream of pseudorandom {@code double} values
 * @since 1.8
 */
public DoubleStream doubles() {
    return StreamSupport.doubleStream
        (new RandomDoublesSpliterator
         (0L, Long.MAX_VALUE, Double.MAX_VALUE, 0.0),
         false);
}
 
Example 4
/**
 * Returns an effectively unlimited stream of pseudorandom {@code
 * double} values, each between zero (inclusive) and one
 * (exclusive).
 *
 * <p>A pseudorandom {@code double} value is generated as if it's the result
 * of calling the method {@link #nextDouble()}.
 *
 * @implNote This method is implemented to be equivalent to {@code
 * doubles(Long.MAX_VALUE)}.
 *
 * @return a stream of pseudorandom {@code double} values
 * @since 1.8
 */
public DoubleStream doubles() {
    return StreamSupport.doubleStream
            (new RandomDoublesSpliterator
                     (this, 0L, Long.MAX_VALUE, Double.MAX_VALUE, 0.0),
             false);
}
 
Example 5
/**
 * Returns a stream producing the given {@code streamSize} number of
 * pseudorandom {@code double} values, each between zero
 * (inclusive) and one (exclusive).
 *
 * @param streamSize the number of values to generate
 * @return a stream of {@code double} values
 * @throws IllegalArgumentException if {@code streamSize} is
 *         less than zero
 * @since 1.8
 */
public DoubleStream doubles(long streamSize) {
    if (streamSize < 0L)
        throw new IllegalArgumentException(BadSize);
    return StreamSupport.doubleStream
        (new RandomDoublesSpliterator
         (0L, streamSize, Double.MAX_VALUE, 0.0),
         false);
}
 
Example 6
/**
 * Returns an effectively unlimited stream of pseudorandom {@code
 * double} values, each between zero (inclusive) and one
 * (exclusive).
 *
 * @implNote This method is implemented to be equivalent to {@code
 * doubles(Long.MAX_VALUE)}.
 *
 * @return a stream of pseudorandom {@code double} values
 * @since 1.8
 */
public DoubleStream doubles() {
    return StreamSupport.doubleStream
        (new RandomDoublesSpliterator
         (0L, Long.MAX_VALUE, Double.MAX_VALUE, 0.0),
         false);
}
 
Example 7
/**
 * Returns a stream producing the given {@code streamSize} number of
 * pseudorandom {@code double} values, each conforming to the given origin
 * (inclusive) and bound (exclusive).
 *
 * @param streamSize the number of values to generate
 * @param randomNumberOrigin the origin (inclusive) of each random value
 * @param randomNumberBound the bound (exclusive) of each random value
 * @return a stream of pseudorandom {@code double} values,
 *         each with the given origin (inclusive) and bound (exclusive)
 * @throws IllegalArgumentException if {@code streamSize} is
 *         less than zero
 * @throws IllegalArgumentException if {@code randomNumberOrigin}
 *         is greater than or equal to {@code randomNumberBound}
 * @since 1.8
 */
public DoubleStream doubles(long streamSize, double randomNumberOrigin,
                            double randomNumberBound) {
    if (streamSize < 0L)
        throw new IllegalArgumentException(BadSize);
    if (!(randomNumberOrigin < randomNumberBound))
        throw new IllegalArgumentException(BadRange);
    return StreamSupport.doubleStream
        (new RandomDoublesSpliterator
         (0L, streamSize, randomNumberOrigin, randomNumberBound),
         false);
}
 
Example 8
/**
 * Returns a stream producing the given {@code streamSize} number of
 * pseudorandom {@code double} values, each between zero
 * (inclusive) and one (exclusive).
 *
 * <p>A pseudorandom {@code double} value is generated as if it's the result
 * of calling the method {@link #nextDouble()}.
 *
 * @param streamSize the number of values to generate
 * @return a stream of {@code double} values
 * @throws IllegalArgumentException if {@code streamSize} is
 *         less than zero
 * @since 1.8
 */
public DoubleStream doubles(long streamSize) {
    if (streamSize < 0L)
        throw new IllegalArgumentException(BadSize);
    return StreamSupport.doubleStream
            (new RandomDoublesSpliterator
                     (this, 0L, streamSize, Double.MAX_VALUE, 0.0),
             false);
}
 
Example 9
/**
 * Returns an effectively unlimited stream of pseudorandom {@code
 * double} values, each conforming to the given origin (inclusive) and bound
 * (exclusive).
 *
 * <p>A pseudorandom {@code double} value is generated as if it's the result
 * of calling the following method with the origin and bound:
 * <pre> {@code
 * double nextDouble(double origin, double bound) {
 *   double r = nextDouble();
 *   r = r * (bound - origin) + origin;
 *   if (r >= bound) // correct for rounding
 *     r = Math.nextDown(bound);
 *   return r;
 * }}</pre>
 *
 * @implNote This method is implemented to be equivalent to {@code
 * doubles(Long.MAX_VALUE, randomNumberOrigin, randomNumberBound)}.
 *
 * @param randomNumberOrigin the origin (inclusive) of each random value
 * @param randomNumberBound the bound (exclusive) of each random value
 * @return a stream of pseudorandom {@code double} values,
 *         each with the given origin (inclusive) and bound (exclusive)
 * @throws IllegalArgumentException if {@code randomNumberOrigin}
 *         is greater than or equal to {@code randomNumberBound}
 * @since 1.8
 */
public DoubleStream doubles(double randomNumberOrigin, double randomNumberBound) {
    if (!(randomNumberOrigin < randomNumberBound))
        throw new IllegalArgumentException(BadRange);
    return StreamSupport.doubleStream
            (new RandomDoublesSpliterator
                     (this, 0L, Long.MAX_VALUE, randomNumberOrigin, randomNumberBound),
             false);
}
 
Example 10
/**
 * Returns an effectively unlimited stream of pseudorandom {@code
 * double} values from this generator and/or one split from it; each value
 * conforms to the given origin (inclusive) and bound (exclusive).
 *
 * @implNote This method is implemented to be equivalent to {@code
 * doubles(Long.MAX_VALUE, randomNumberOrigin, randomNumberBound)}.
 *
 * @param randomNumberOrigin the origin (inclusive) of each random value
 * @param randomNumberBound the bound (exclusive) of each random value
 * @return a stream of pseudorandom {@code double} values,
 *         each with the given origin (inclusive) and bound (exclusive)
 * @throws IllegalArgumentException if {@code randomNumberOrigin}
 *         is greater than or equal to {@code randomNumberBound}
 */
public DoubleStream doubles(double randomNumberOrigin, double randomNumberBound) {
    if (!(randomNumberOrigin < randomNumberBound))
        throw new IllegalArgumentException(BadRange);
    return StreamSupport.doubleStream
        (new RandomDoublesSpliterator
         (this, 0L, Long.MAX_VALUE, randomNumberOrigin, randomNumberBound),
         false);
}
 
Example 11
/**
 * Returns a stream producing the given {@code streamSize} number of
 * pseudorandom {@code double} values from this generator and/or one split
 * from it; each value conforms to the given origin (inclusive) and bound
 * (exclusive).
 *
 * @param streamSize the number of values to generate
 * @param randomNumberOrigin the origin (inclusive) of each random value
 * @param randomNumberBound the bound (exclusive) of each random value
 * @return a stream of pseudorandom {@code double} values,
 *         each with the given origin (inclusive) and bound (exclusive)
 * @throws IllegalArgumentException if {@code streamSize} is
 *         less than zero
 * @throws IllegalArgumentException if {@code randomNumberOrigin}
 *         is greater than or equal to {@code randomNumberBound}
 */
public DoubleStream doubles(long streamSize, double randomNumberOrigin,
                            double randomNumberBound) {
    if (streamSize < 0L)
        throw new IllegalArgumentException(BadSize);
    if (!(randomNumberOrigin < randomNumberBound))
        throw new IllegalArgumentException(BadRange);
    return StreamSupport.doubleStream
        (new RandomDoublesSpliterator
         (this, 0L, streamSize, randomNumberOrigin, randomNumberBound),
         false);
}
 
Example 12
/**
 * Returns a stream producing the given {@code streamSize} number of
 * pseudorandom {@code double} values, each conforming to the given origin
 * (inclusive) and bound (exclusive).
 *
 * <p>A pseudorandom {@code double} value is generated as if it's the result
 * of calling the following method with the origin and bound:
 * <pre> {@code
 * double nextDouble(double origin, double bound) {
 *   double r = nextDouble();
 *   r = r * (bound - origin) + origin;
 *   if (r >= bound) // correct for rounding
 *     r = Math.nextDown(bound);
 *   return r;
 * }}</pre>
 *
 * @param streamSize the number of values to generate
 * @param randomNumberOrigin the origin (inclusive) of each random value
 * @param randomNumberBound the bound (exclusive) of each random value
 * @return a stream of pseudorandom {@code double} values,
 *         each with the given origin (inclusive) and bound (exclusive)
 * @throws IllegalArgumentException if {@code streamSize} is
 *         less than zero
 * @throws IllegalArgumentException if {@code randomNumberOrigin}
 *         is greater than or equal to {@code randomNumberBound}
 * @since 1.8
 */
public DoubleStream doubles(long streamSize, double randomNumberOrigin,
                            double randomNumberBound) {
    if (streamSize < 0L)
        throw new IllegalArgumentException(BadSize);
    if (!(randomNumberOrigin < randomNumberBound))
        throw new IllegalArgumentException(BadRange);
    return StreamSupport.doubleStream
            (new RandomDoublesSpliterator
                     (this, 0L, streamSize, randomNumberOrigin, randomNumberBound),
             false);
}
 
Example 13
/**
 * Returns a stream producing the given {@code streamSize} number of
 * pseudorandom {@code double} values, each between zero
 * (inclusive) and one (exclusive).
 *
 * <p>A pseudorandom {@code double} value is generated as if it's the result
 * of calling the method {@link #nextDouble()}.
 *
 * @param streamSize the number of values to generate
 * @return a stream of {@code double} values
 * @throws IllegalArgumentException if {@code streamSize} is
 *         less than zero
 * @since 1.8
 */
public DoubleStream doubles(long streamSize) {
    if (streamSize < 0L)
        throw new IllegalArgumentException(BadSize);
    return StreamSupport.doubleStream
            (new RandomDoublesSpliterator
                     (this, 0L, streamSize, Double.MAX_VALUE, 0.0),
             false);
}
 
Example 14
/**
 * Returns an effectively unlimited stream of pseudorandom {@code
 * double} values, each between zero (inclusive) and one
 * (exclusive).
 *
 * <p>A pseudorandom {@code double} value is generated as if it's the result
 * of calling the method {@link #nextDouble()}.
 *
 * @implNote This method is implemented to be equivalent to {@code
 * doubles(Long.MAX_VALUE)}.
 *
 * @return a stream of pseudorandom {@code double} values
 * @since 1.8
 */
public DoubleStream doubles() {
    return StreamSupport.doubleStream
            (new RandomDoublesSpliterator
                     (this, 0L, Long.MAX_VALUE, Double.MAX_VALUE, 0.0),
             false);
}
 
Example 15
/**
 * Returns a stream producing the given {@code streamSize} number of
 * pseudorandom {@code double} values, each conforming to the given origin
 * (inclusive) and bound (exclusive).
 *
 * <p>A pseudorandom {@code double} value is generated as if it's the result
 * of calling the following method with the origin and bound:
 * <pre> {@code
 * double nextDouble(double origin, double bound) {
 *   double r = nextDouble();
 *   r = r * (bound - origin) + origin;
 *   if (r >= bound) // correct for rounding
 *     r = Math.nextDown(bound);
 *   return r;
 * }}</pre>
 *
 * @param streamSize the number of values to generate
 * @param randomNumberOrigin the origin (inclusive) of each random value
 * @param randomNumberBound the bound (exclusive) of each random value
 * @return a stream of pseudorandom {@code double} values,
 *         each with the given origin (inclusive) and bound (exclusive)
 * @throws IllegalArgumentException if {@code streamSize} is
 *         less than zero
 * @throws IllegalArgumentException if {@code randomNumberOrigin}
 *         is greater than or equal to {@code randomNumberBound}
 * @since 1.8
 */
public DoubleStream doubles(long streamSize, double randomNumberOrigin,
                            double randomNumberBound) {
    if (streamSize < 0L)
        throw new IllegalArgumentException(BadSize);
    if (!(randomNumberOrigin < randomNumberBound))
        throw new IllegalArgumentException(BadRange);
    return StreamSupport.doubleStream
            (new RandomDoublesSpliterator
                     (this, 0L, streamSize, randomNumberOrigin, randomNumberBound),
             false);
}
 
Example 16
/**
 * Returns an effectively unlimited stream of pseudorandom {@code
 * double} values, each conforming to the given origin (inclusive) and bound
 * (exclusive).
 *
 * <p>A pseudorandom {@code double} value is generated as if it's the result
 * of calling the following method with the origin and bound:
 * <pre> {@code
 * double nextDouble(double origin, double bound) {
 *   double r = nextDouble();
 *   r = r * (bound - origin) + origin;
 *   if (r >= bound) // correct for rounding
 *     r = Math.nextDown(bound);
 *   return r;
 * }}</pre>
 *
 * @implNote This method is implemented to be equivalent to {@code
 * doubles(Long.MAX_VALUE, randomNumberOrigin, randomNumberBound)}.
 *
 * @param randomNumberOrigin the origin (inclusive) of each random value
 * @param randomNumberBound the bound (exclusive) of each random value
 * @return a stream of pseudorandom {@code double} values,
 *         each with the given origin (inclusive) and bound (exclusive)
 * @throws IllegalArgumentException if {@code randomNumberOrigin}
 *         is greater than or equal to {@code randomNumberBound}
 * @since 1.8
 */
public DoubleStream doubles(double randomNumberOrigin, double randomNumberBound) {
    if (!(randomNumberOrigin < randomNumberBound))
        throw new IllegalArgumentException(BadRange);
    return StreamSupport.doubleStream
            (new RandomDoublesSpliterator
                     (this, 0L, Long.MAX_VALUE, randomNumberOrigin, randomNumberBound),
             false);
}
 
Example 17
/**
 * Returns a stream producing the given {@code streamSize} number of
 * pseudorandom {@code double} values, each between zero
 * (inclusive) and one (exclusive).
 *
 * @param streamSize the number of values to generate
 * @return a stream of {@code double} values
 * @throws IllegalArgumentException if {@code streamSize} is
 *         less than zero
 * @since 1.8
 */
public DoubleStream doubles(long streamSize) {
    if (streamSize < 0L)
        throw new IllegalArgumentException(BadSize);
    return StreamSupport.doubleStream
        (new RandomDoublesSpliterator
         (0L, streamSize, Double.MAX_VALUE, 0.0),
         false);
}
 
Example 18
/**
 * Returns an effectively unlimited stream of pseudorandom {@code
 * double} values, each conforming to the given origin (inclusive) and bound
 * (exclusive).
 *
 * @implNote This method is implemented to be equivalent to {@code
 * doubles(Long.MAX_VALUE, randomNumberOrigin, randomNumberBound)}.
 *
 * @param randomNumberOrigin the origin (inclusive) of each random value
 * @param randomNumberBound the bound (exclusive) of each random value
 * @return a stream of pseudorandom {@code double} values,
 *         each with the given origin (inclusive) and bound (exclusive)
 * @throws IllegalArgumentException if {@code randomNumberOrigin}
 *         is greater than or equal to {@code randomNumberBound}
 * @since 1.8
 */
public DoubleStream doubles(double randomNumberOrigin, double randomNumberBound) {
    if (!(randomNumberOrigin < randomNumberBound))
        throw new IllegalArgumentException(BadRange);
    return StreamSupport.doubleStream
        (new RandomDoublesSpliterator
         (0L, Long.MAX_VALUE, randomNumberOrigin, randomNumberBound),
         false);
}
 
Example 19
/**
 * Returns a stream producing the given {@code streamSize} number of
 * pseudorandom {@code double} values, each conforming to the given origin
 * (inclusive) and bound (exclusive).
 *
 * @param streamSize the number of values to generate
 * @param randomNumberOrigin the origin (inclusive) of each random value
 * @param randomNumberBound the bound (exclusive) of each random value
 * @return a stream of pseudorandom {@code double} values,
 *         each with the given origin (inclusive) and bound (exclusive)
 * @throws IllegalArgumentException if {@code streamSize} is
 *         less than zero
 * @throws IllegalArgumentException if {@code randomNumberOrigin}
 *         is greater than or equal to {@code randomNumberBound}
 * @since 1.8
 */
public DoubleStream doubles(long streamSize, double randomNumberOrigin,
                            double randomNumberBound) {
    if (streamSize < 0L)
        throw new IllegalArgumentException(BadSize);
    if (!(randomNumberOrigin < randomNumberBound))
        throw new IllegalArgumentException(BadRange);
    return StreamSupport.doubleStream
        (new RandomDoublesSpliterator
         (0L, streamSize, randomNumberOrigin, randomNumberBound),
         false);
}
 
Example 20
/**
 * Returns a stream producing the given {@code streamSize} number of
 * pseudorandom {@code double} values from this generator and/or one split
 * from it; each value conforms to the given origin (inclusive) and bound
 * (exclusive).
 *
 * @param streamSize the number of values to generate
 * @param randomNumberOrigin the origin (inclusive) of each random value
 * @param randomNumberBound the bound (exclusive) of each random value
 * @return a stream of pseudorandom {@code double} values,
 *         each with the given origin (inclusive) and bound (exclusive)
 * @throws IllegalArgumentException if {@code streamSize} is
 *         less than zero
 * @throws IllegalArgumentException if {@code randomNumberOrigin}
 *         is greater than or equal to {@code randomNumberBound}
 */
public DoubleStream doubles(long streamSize, double randomNumberOrigin,
                            double randomNumberBound) {
    if (streamSize < 0L)
        throw new IllegalArgumentException(BadSize);
    if (!(randomNumberOrigin < randomNumberBound))
        throw new IllegalArgumentException(BadRange);
    return StreamSupport.doubleStream
        (new RandomDoublesSpliterator
         (this, 0L, streamSize, randomNumberOrigin, randomNumberBound),
         false);
}