Examples with Stream java8.util.stream.Stream used on opensource projects

Example 36 with Stream

use of java8.util.stream.Stream in project streamsupport by stefan-zobel.

the class SplittableRandomTest method testUnsizedIntsCount.

/**
 * A parallel unsized stream of ints generates at least 100 values
 */
public void testUnsizedIntsCount() {
    final LongAdder counter = new LongAdder();
    SplittableRandom r = new SplittableRandom();
    long size = 100;
    r.ints().limit(size).parallel().forEach(new IntConsumer() {

        @Override
        public void accept(int x) {
            counter.increment();
        }
    });
    assertEquals(counter.sum(), size);
}

Example 37 with Stream

use of java8.util.stream.Stream in project streamsupport by stefan-zobel.

the class StringJoinerTest method addAlladdAll.

// The following tests do two successive adds of different types
public void addAlladdAll() {
    final StringJoiner sj = new StringJoiner(DASH, "{", "}");
    ArrayList<String> firstOne = new ArrayList<String>();
    firstOne.add(ONE);
    firstOne.add(TWO);
    firstOne.add(THREE);
    Stream<String> stream = StreamSupport.stream(firstOne);
    stream.forEachOrdered(new java8.util.function.Consumer<String>() {

        @Override
        public void accept(String t) {
            sj.add(t);
        }
    });
    ArrayList<String> nextOne = new ArrayList<String>();
    nextOne.add(FOUR);
    nextOne.add(FIVE);
    Stream<String> stream2 = StreamSupport.stream(nextOne);
    stream2.forEachOrdered(new java8.util.function.Consumer<String>() {

        @Override
        public void accept(String t) {
            sj.add(t);
        }
    });
    String expected = "{" + ONE + DASH + TWO + DASH + THREE + DASH + FOUR + DASH + FIVE + "}";
    assertEquals(sj.toString(), expected);
}

Example 38 with Stream

use of java8.util.stream.Stream in project streamsupport by stefan-zobel.

the class ThreadLocalRandomTest method testDoublesCount.

/**
 * A parallel sized stream of doubles generates the given number of values
 */
public void testDoublesCount() {
    LongAdder counter = new LongAdder();
    ThreadLocalRandom r = ThreadLocalRandom.current();
    long size = 0;
    for (int reps = 0; reps < REPS; ++reps) {
        counter.reset();
        r.doubles(size).parallel().forEach(x -> {
            counter.increment();
        });
        assertEquals(counter.sum(), size);
        size += 524959;
    }
}

Example 39 with Stream

use of java8.util.stream.Stream in project streamsupport by stefan-zobel.

the class ThreadLocalRandomTest method testUnsizedLongsCountSeq.

/**
 * A sequential unsized stream of longs generates at least 100 values
 */
public void testUnsizedLongsCountSeq() {
    LongAdder counter = new LongAdder();
    ThreadLocalRandom r = ThreadLocalRandom.current();
    long size = 100;
    r.longs().limit(size).forEach(x -> {
        counter.increment();
    });
    assertEquals(counter.sum(), size);
}

Example 40 with Stream

use of java8.util.stream.Stream in project streamsupport by stefan-zobel.

the class ThreadLocalRandomTest method testUnsizedIntsCountSeq.

/**
 * A sequential unsized stream of ints generates at least 100 values
 */
public void testUnsizedIntsCountSeq() {
    LongAdder counter = new LongAdder();
    ThreadLocalRandom r = ThreadLocalRandom.current();
    long size = 100;
    r.ints().limit(size).forEach(x -> {
        counter.increment();
    });
    assertEquals(counter.sum(), size);
}