Java Code Examples for java.util.stream.IntStream#toArray()

The following examples show how to use java.util.stream.IntStream#toArray() . 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 File: BitSetStreamTest.java    From dragonwell8_jdk with GNU General Public License v2.0 6 votes vote down vote up 
@Test
public void testRandomStream() {
    final int size = 1024 * 1024;
    final int[] seeds = {
            2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41,
            43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97};
    final byte[] bytes = new byte[size];
    for (int seed : seeds) {
        final Random random = new Random(seed);
        random.nextBytes(bytes);
        final BitSet bitSet = BitSet.valueOf(bytes);
        final int cardinality = bitSet.cardinality();
        final IntStream stream = bitSet.stream();
        final int[] array = stream.toArray();
        assertEquals(array.length, cardinality);
        int nextSetBit = -1;
        for (int i=0; i < cardinality; i++) {
            nextSetBit = bitSet.nextSetBit(nextSetBit + 1);
            assertEquals(array[i], nextSetBit);
        }
    }
}
Example 2
Source File: BitSetStreamTest.java    From jdk8u-dev-jdk with GNU General Public License v2.0 6 votes vote down vote up 
@Test
public void testRandomStream() {
    final int size = 1024 * 1024;
    final int[] seeds = {
            2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41,
            43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97};
    final byte[] bytes = new byte[size];
    for (int seed : seeds) {
        final Random random = new Random(seed);
        random.nextBytes(bytes);
        final BitSet bitSet = BitSet.valueOf(bytes);
        final int cardinality = bitSet.cardinality();
        final IntStream stream = bitSet.stream();
        final int[] array = stream.toArray();
        assertEquals(array.length, cardinality);
        int nextSetBit = -1;
        for (int i=0; i < cardinality; i++) {
            nextSetBit = bitSet.nextSetBit(nextSetBit + 1);
            assertEquals(array[i], nextSetBit);
        }
    }
}
Example 3
Source File: BitSetStreamTest.java    From jdk8u-jdk with GNU General Public License v2.0 6 votes vote down vote up 
@Test
public void testRandomStream() {
    final int size = 1024 * 1024;
    final int[] seeds = {
            2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41,
            43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97};
    final byte[] bytes = new byte[size];
    for (int seed : seeds) {
        final Random random = new Random(seed);
        random.nextBytes(bytes);
        final BitSet bitSet = BitSet.valueOf(bytes);
        final int cardinality = bitSet.cardinality();
        final IntStream stream = bitSet.stream();
        final int[] array = stream.toArray();
        assertEquals(array.length, cardinality);
        int nextSetBit = -1;
        for (int i=0; i < cardinality; i++) {
            nextSetBit = bitSet.nextSetBit(nextSetBit + 1);
            assertEquals(array[i], nextSetBit);
        }
    }
}
Example 4
Source File: BitSetStreamTest.java    From jdk8u_jdk with GNU General Public License v2.0 6 votes vote down vote up 
@Test
public void testRandomStream() {
    final int size = 1024 * 1024;
    final int[] seeds = {
            2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41,
            43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97};
    final byte[] bytes = new byte[size];
    for (int seed : seeds) {
        final Random random = new Random(seed);
        random.nextBytes(bytes);
        final BitSet bitSet = BitSet.valueOf(bytes);
        final int cardinality = bitSet.cardinality();
        final IntStream stream = bitSet.stream();
        final int[] array = stream.toArray();
        assertEquals(array.length, cardinality);
        int nextSetBit = -1;
        for (int i=0; i < cardinality; i++) {
            nextSetBit = bitSet.nextSetBit(nextSetBit + 1);
            assertEquals(array[i], nextSetBit);
        }
    }
}
Example 5
Source File: BitSetStreamTest.java    From openjdk-8 with GNU General Public License v2.0 6 votes vote down vote up 
@Test
public void testRandomStream() {
    final int size = 1024 * 1024;
    final int[] seeds = {
            2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41,
            43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97};
    final byte[] bytes = new byte[size];
    for (int seed : seeds) {
        final Random random = new Random(seed);
        random.nextBytes(bytes);
        final BitSet bitSet = BitSet.valueOf(bytes);
        final int cardinality = bitSet.cardinality();
        final IntStream stream = bitSet.stream();
        final int[] array = stream.toArray();
        assertEquals(array.length, cardinality);
        int nextSetBit = -1;
        for (int i=0; i < cardinality; i++) {
            nextSetBit = bitSet.nextSetBit(nextSetBit + 1);
            assertEquals(array[i], nextSetBit);
        }
    }
}
Example 6
Source File: BitSetStreamTest.java    From openjdk-8-source with GNU General Public License v2.0 6 votes vote down vote up 
@Test
public void testRandomStream() {
    final int size = 1024 * 1024;
    final int[] seeds = {
            2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41,
            43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97};
    final byte[] bytes = new byte[size];
    for (int seed : seeds) {
        final Random random = new Random(seed);
        random.nextBytes(bytes);
        final BitSet bitSet = BitSet.valueOf(bytes);
        final int cardinality = bitSet.cardinality();
        final IntStream stream = bitSet.stream();
        final int[] array = stream.toArray();
        assertEquals(array.length, cardinality);
        int nextSetBit = -1;
        for (int i=0; i < cardinality; i++) {
            nextSetBit = bitSet.nextSetBit(nextSetBit + 1);
            assertEquals(array[i], nextSetBit);
        }
    }
}
Example 7
Source File: BitSetStreamTest.java    From hottub with GNU General Public License v2.0 6 votes vote down vote up 
@Test
public void testRandomStream() {
    final int size = 1024 * 1024;
    final int[] seeds = {
            2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41,
            43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97};
    final byte[] bytes = new byte[size];
    for (int seed : seeds) {
        final Random random = new Random(seed);
        random.nextBytes(bytes);
        final BitSet bitSet = BitSet.valueOf(bytes);
        final int cardinality = bitSet.cardinality();
        final IntStream stream = bitSet.stream();
        final int[] array = stream.toArray();
        assertEquals(array.length, cardinality);
        int nextSetBit = -1;
        for (int i=0; i < cardinality; i++) {
            nextSetBit = bitSet.nextSetBit(nextSetBit + 1);
            assertEquals(array[i], nextSetBit);
        }
    }
}
Example 8
Source File: BitSetStreamTest.java    From jdk8u-jdk with GNU General Public License v2.0 6 votes vote down vote up 
@Test
public void testRandomStream() {
    final int size = 1024 * 1024;
    final int[] seeds = {
            2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41,
            43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97};
    final byte[] bytes = new byte[size];
    for (int seed : seeds) {
        final Random random = new Random(seed);
        random.nextBytes(bytes);
        final BitSet bitSet = BitSet.valueOf(bytes);
        final int cardinality = bitSet.cardinality();
        final IntStream stream = bitSet.stream();
        final int[] array = stream.toArray();
        assertEquals(array.length, cardinality);
        int nextSetBit = -1;
        for (int i=0; i < cardinality; i++) {
            nextSetBit = bitSet.nextSetBit(nextSetBit + 1);
            assertEquals(array[i], nextSetBit);
        }
    }
}
Example 9
Source File: BitSetStreamTest.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 6 votes vote down vote up 
@Test
public void testRandomStream() {
    final int size = 1024 * 1024;
    final int[] seeds = {
            2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41,
            43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97};
    final byte[] bytes = new byte[size];
    for (int seed : seeds) {
        final Random random = new Random(seed);
        random.nextBytes(bytes);
        final BitSet bitSet = BitSet.valueOf(bytes);
        final int cardinality = bitSet.cardinality();
        final IntStream stream = bitSet.stream();
        final int[] array = stream.toArray();
        assertEquals(array.length, cardinality);
        int nextSetBit = -1;
        for (int i=0; i < cardinality; i++) {
            nextSetBit = bitSet.nextSetBit(nextSetBit + 1);
            assertEquals(array[i], nextSetBit);
        }
    }
}
Example 10
Source File: BitSetStreamTest.java    From openjdk-jdk8u with GNU General Public License v2.0 6 votes vote down vote up 
@Test
public void testRandomStream() {
    final int size = 1024 * 1024;
    final int[] seeds = {
            2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41,
            43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97};
    final byte[] bytes = new byte[size];
    for (int seed : seeds) {
        final Random random = new Random(seed);
        random.nextBytes(bytes);
        final BitSet bitSet = BitSet.valueOf(bytes);
        final int cardinality = bitSet.cardinality();
        final IntStream stream = bitSet.stream();
        final int[] array = stream.toArray();
        assertEquals(array.length, cardinality);
        int nextSetBit = -1;
        for (int i=0; i < cardinality; i++) {
            nextSetBit = bitSet.nextSetBit(nextSetBit + 1);
            assertEquals(array[i], nextSetBit);
        }
    }
}
Example 11
Source File: BitSetStreamTest.java    From jdk8u60 with GNU General Public License v2.0 6 votes vote down vote up 
@Test
public void testRandomStream() {
    final int size = 1024 * 1024;
    final int[] seeds = {
            2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41,
            43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97};
    final byte[] bytes = new byte[size];
    for (int seed : seeds) {
        final Random random = new Random(seed);
        random.nextBytes(bytes);
        final BitSet bitSet = BitSet.valueOf(bytes);
        final int cardinality = bitSet.cardinality();
        final IntStream stream = bitSet.stream();
        final int[] array = stream.toArray();
        assertEquals(array.length, cardinality);
        int nextSetBit = -1;
        for (int i=0; i < cardinality; i++) {
            nextSetBit = bitSet.nextSetBit(nextSetBit + 1);
            assertEquals(array[i], nextSetBit);
        }
    }
}
Example 12
Source File: BitSetStreamTest.java    From TencentKona-8 with GNU General Public License v2.0 6 votes vote down vote up 
@Test
public void testRandomStream() {
    final int size = 1024 * 1024;
    final int[] seeds = {
            2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41,
            43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97};
    final byte[] bytes = new byte[size];
    for (int seed : seeds) {
        final Random random = new Random(seed);
        random.nextBytes(bytes);
        final BitSet bitSet = BitSet.valueOf(bytes);
        final int cardinality = bitSet.cardinality();
        final IntStream stream = bitSet.stream();
        final int[] array = stream.toArray();
        assertEquals(array.length, cardinality);
        int nextSetBit = -1;
        for (int i=0; i < cardinality; i++) {
            nextSetBit = bitSet.nextSetBit(nextSetBit + 1);
            assertEquals(array[i], nextSetBit);
        }
    }
}
Example 13
Source File: VelocityVersionProvider.java    From ViaVersion with MIT License 5 votes vote down vote up 
@Override
public int getServerProtocol(UserConnection user) throws Exception {
    int playerVersion = user.getProtocolInfo().getProtocolVersion();

    IntStream versions = com.velocitypowered.api.network.ProtocolVersion.SUPPORTED_VERSIONS.stream()
            .mapToInt(com.velocitypowered.api.network.ProtocolVersion::getProtocol);

    // Modern forwarding mode needs 1.13 Login plugin message
    if (VelocityViaInjector.getPlayerInfoForwardingMode != null
            && ((Enum<?>) VelocityViaInjector.getPlayerInfoForwardingMode.invoke(VelocityPlugin.PROXY.getConfiguration()))
            .name().equals("MODERN")) {
        versions = versions.filter(ver -> ver >= ProtocolVersion.v1_13.getId());
    }
    int[] compatibleProtocols = versions.toArray();

    // Bungee supports it
    if (Arrays.binarySearch(compatibleProtocols, playerVersion) >= 0)
        return playerVersion;

    // Older than bungee supports, get the lowest version
    if (playerVersion < compatibleProtocols[0]) {
        return compatibleProtocols[0];
    }

    // Loop through all protocols to get the closest protocol id that bungee supports (and that viaversion does too)

    // TODO: This needs a better fix, i.e checking ProtocolRegistry to see if it would work.
    // This is more of a workaround for snapshot support by bungee.
    for (int i = compatibleProtocols.length - 1; i >= 0; i--) {
        int protocol = compatibleProtocols[i];
        if (playerVersion > protocol && ProtocolVersion.isRegistered(protocol))
            return protocol;
    }

    Via.getPlatform().getLogger().severe("Panic, no protocol id found for " + playerVersion);
    return playerVersion;
}
Example 14
Source File: ArraySchemaValidatingVisitor.java    From json-schema with Apache License 2.0 5 votes vote down vote up 
private void validateItemsAgainstSchema(IntStream indices, IntFunction<Schema> schemaForIndex) {
    for (int i : indices.toArray()) {
        String copyOfI = String.valueOf(i); // i is not effectively final so we copy it
        ifFails(schemaForIndex.apply(i), arraySubject.get(i))
                .map(exc -> exc.prepend(copyOfI))
                .ifPresent(owner::failure);
    }
}
Example 15
Source File: Main.java    From Java-Coding-Problems with MIT License 5 votes vote down vote up 
public static void main(String[] args) {

        // String array
        String[] arr = {"One", "Two", "Three", "Four", "Five"};

        // array to Stream
        Stream<String> stream1 = Arrays.stream(arr);
        Stream<String> stream2 = Arrays.stream(arr, 0, 2);
        Stream<String> stream3 = Arrays.asList(arr).stream();
        Stream<String> stream4 = Arrays.asList(arr).subList(0, 2).stream();
        Stream<String> stream5 = Stream.of(arr);
        Stream<String> stream6 = Stream.of("One", "Two", "Three");

        // Stream to array
        String[] array1 = stream1.toArray(String[]::new);

        // integers array
        int[] integers = {2, 3, 4, 1};
        Integer[] boxedInt = {2, 3, 4, 1};

        IntStream intStream1 = Arrays.stream(integers);
        IntStream intStream2 = IntStream.of(integers);
        IntStream intStream3 = IntStream.range(0, integers.length);;
        IntStream intStream4 = IntStream.rangeClosed(0, integers.length);
        Stream<Integer> intStream5 = Stream.of(boxedInt);

        int[] intArray1 = intStream1.toArray();
        int[] intArray2 = intStream5.mapToInt(i -> i).toArray();
    }
Example 16
Source File: ScrubProcessor.java    From support-diagnostics with Apache License 2.0 5 votes vote down vote up 
private void initIpv4() {

        Random random = new Random();
        IntStream intStream = random.ints(300, 556).distinct().limit(256);

        int key = 0;
        int[] vals = intStream.toArray();
        for (int i = 0; i < 256; i++) {
            ipv4.put(i, vals[i]);
        }

    }
Example 17
Source File: Util.java    From javan-warty-pig with MIT License 4 votes vote down vote up 
public static short[] streamToShortArray(IntStream stream) {
  int[] ints = stream.toArray();
  short[] ret = new short[ints.length];
  for (int i = 0; i < ints.length; i++) ret[i] = (short) ints[i];
  return ret;
}
Example 18
Source File: Util.java    From javan-warty-pig with MIT License 4 votes vote down vote up 
public static byte[] streamToByteArray(IntStream stream) {
  int[] ints = stream.toArray();
  byte[] ret = new byte[ints.length];
  for (int i = 0; i < ints.length; i++) ret[i] = (byte) ints[i];
  return ret;
}
Example 19
Source File: ModResolver.java    From fabric-loader with Apache License 2.0 4 votes vote down vote up 
private static IVecInt toVecInt(IntStream stream) {
	return new VecInt(stream.toArray());
}
Example 20
Source File: IntColumn.java    From paleo with Apache License 2.0 4 votes vote down vote up 
private IntColumn(IntColumnId id, IntStream values, Map<String, String> metaData) {
    this.id = id;
    this.values = values.toArray();
    this.metaData = metaData;
}