java.util.stream.IntStream#toArray ( )源码实例Demo

下面列出了java.util.stream.IntStream#toArray ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： dragonwell8_jdk 文件： BitSetStreamTest.java

@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);
        }
    }
}

源代码2 项目： TencentKona-8 文件： BitSetStreamTest.java

@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);
        }
    }
}

源代码3 项目： jdk8u60 文件： BitSetStreamTest.java

@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);
        }
    }
}

源代码4 项目： openjdk-jdk8u 文件： BitSetStreamTest.java

@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);
        }
    }
}

源代码5 项目： openjdk-jdk8u-backup 文件： BitSetStreamTest.java

@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);
        }
    }
}

源代码6 项目： jdk8u-jdk 文件： BitSetStreamTest.java

@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);
        }
    }
}

源代码7 项目： hottub 文件： BitSetStreamTest.java

@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);
        }
    }
}

源代码8 项目： openjdk-8-source 文件： BitSetStreamTest.java

@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);
        }
    }
}

源代码9 项目： openjdk-8 文件： BitSetStreamTest.java

@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);
        }
    }
}

源代码10 项目： jdk8u_jdk 文件： BitSetStreamTest.java

@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);
        }
    }
}

源代码11 项目： jdk8u-jdk 文件： BitSetStreamTest.java

@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);
        }
    }
}

源代码12 项目： jdk8u-dev-jdk 文件： BitSetStreamTest.java

@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);
        }
    }
}

源代码13 项目： Java-Coding-Problems 文件： Main.java

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();
    }

源代码14 项目： ViaVersion 文件： VelocityVersionProvider.java

@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;
}

源代码15 项目： json-schema 文件： ArraySchemaValidatingVisitor.java

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);
    }
}

源代码16 项目： support-diagnostics 文件： ScrubProcessor.java

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]);
        }

    }

源代码17 项目： javan-warty-pig 文件： Util.java

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;
}

源代码18 项目： javan-warty-pig 文件： Util.java

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;
}

源代码19 项目： fabric-loader 文件： ModResolver.java

private static IVecInt toVecInt(IntStream stream) {
	return new VecInt(stream.toArray());
}

源代码20 项目： paleo 文件： IntColumn.java

private IntColumn(IntColumnId id, IntStream values, Map<String, String> metaData) {
    this.id = id;
    this.values = values.toArray();
    this.metaData = metaData;
}

方法所在类

java.util.stream.IntStream