java.util.stream.IntStream.asLongStream()方法的使用及代码示例

x33g5p2x  于2022-01-20 转载在 其他  
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本文整理了Java中java.util.stream.IntStream.asLongStream()方法的一些代码示例，展示了IntStream.asLongStream()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。IntStream.asLongStream()方法的具体详情如下：
包路径：java.util.stream.IntStream
类名称：IntStream
方法名：asLongStream

IntStream.asLongStream介绍

[英]Returns a LongStream consisting of the elements of this stream, converted to long.

This is an intermediate operation.
[中]返回由此流的元素组成的LongStream，并转换为long。
这是一个intermediate operation。

代码示例

代码示例来源：origin: speedment/speedment

public IntAsLongAction() {
  super(s -> s.asLongStream(), LongStream.class, AS);
}

代码示例来源：origin: speedment/speedment

@Override
public LongStream asLongStream() {
  return wrap(stream().asLongStream());
}

代码示例来源：origin: apache/geode

@Test
public void basicEqualsReturnsFalseWhenCompareTwoNotEqualLongArrays() {
 assertThat(ValueComparisonHelper.basicEquals(Arrays.stream(INT_ARRAY3).asLongStream().toArray(),
   Arrays.stream(INT_ARRAY2).asLongStream().toArray())).isFalse();
}

代码示例来源：origin: apache/geode

@Test
public void basicEqualsReturnsTrueWhenCompareTwoEqualLongArrays() {
 assertThat(ValueComparisonHelper.basicEquals(Arrays.stream(INT_ARRAY).asLongStream().toArray(),
   Arrays.stream(INT_ARRAY2).asLongStream().toArray())).isTrue();
}

代码示例来源：origin: apache/geode

@Test
public void basicEqualsReturnsFalseWhenOnlyFirstObjectIsAStringArray() {
 assertThat(ValueComparisonHelper.basicEquals(STRING_ARRAY,
   Arrays.stream(INT_ARRAY).asLongStream().toArray())).isFalse();
}

代码示例来源：origin: com.speedment.runtime/runtime-core

public IntAsLongAction() {
  super(s -> s.asLongStream(), LongStream.class, AS);
}

代码示例来源：origin: stackoverflow.com

int[] iArr = new int[]{2147483646 , 1 , 1};
System.out.println(Arrays.stream(iArr).asLongStream().sum());

代码示例来源：origin: nroduit/Weasis

public ExtendSegmentedInputImageStream(File file, long[] segmentPositions, int[] segmentLengths) {
  this.file = file;
  this.segmentPositions = segmentPositions;
  this.segmentLengths = segmentLengths == null ? null : Arrays.stream(segmentLengths).asLongStream().toArray();
}

代码示例来源：origin: se.ugli.ugli-commons/ugli-commons

@Override
public LongStream asLongStream() {
  return new LongResourceStream(stream.asLongStream(), closeOnTerminalOperation, resources);
}

代码示例来源：origin: net.dongliu/commons-lang

@Override
public ExLongStream asLongStream() {
  return ExLongStream.of(stream.asLongStream());
}

代码示例来源：origin: stackoverflow.com

int[] intArray = {1, 2, 3};
long[] longArray = Arrays.stream(intArray).asLongStream().toArray();

代码示例来源：origin: stackoverflow.com

import java.util.stream.IntStream;

public class TapeEquilibrium {

  public static int diffIndex( int[] A ) {

    long lower = 0, diff = 0, higher = IntStream.of( A ).asLongStream().sum(), minDiff = Integer.MAX_VALUE;
    for(int i = 0; i < A.length-1; i++) {
      lower += A[i];
      higher -= A[i];
      diff = Math.abs( higher - lower);
      if( diff < minDiff  ) {
        minDiff = diff;
      }
    }
    return (int) minDiff;
  }

  public static void main( String[] args ) {

    int[] A = { 3, 1, 2, 4, 3 };
    System.out.println( diffIndex( A ) );

  }
}

代码示例来源：origin: stackoverflow.com

int[] iArr = new int[10000000];
Arrays.fill(iArr , 3132);   

long iStart = System.nanoTime();
long  lSum1 = Arrays.stream(iArr).mapToLong(Long::valueOf).sum();
long iEnd = System.nanoTime();

System.out.println("Sum-: " + lSum1);
System.out.println("Time in nanoseconds-: " + (iEnd - iStart) + "ns using \"mapToLong\"\n");

long iStart1 = System.nanoTime();
long lSum2 = Arrays.stream(iArr).asLongStream().sum();
long iEnd1 = System.nanoTime();

System.out.println("Sum-: " + lSum2);
System.out.println("Time in nanoseconds-: " + (iEnd1 - iStart1) + "ns using \"asLongStream\"\n");

long iStart2 = System.nanoTime();
long lSum3 = Arrays.stream(iArr).boxed().collect(Collectors.summingLong(Integer::longValue));
long iEnd2 = System.nanoTime();

System.out.println("Sum-: " + lSum3);
System.out.println("Time in nanoseconds-: " + (iEnd2 - iStart2) + "ns using \"Collectors\"\n");

代码示例来源：origin: stackoverflow.com

int numbers[] = new int[5];
   for(int count = 0; count < numbers.length; count++){
     System.out.print("Please enter a number: ");
     int number=s.nextInt();
     numbers[count] = number;
   }
   LongSummaryStatistics statistics = Arrays.stream(numbers).asLongStream().summaryStatistics();
   System.out.println("Highest: " + statistics.getMax());
   System.out.println("Lowest: " + statistics.getMin());
   System.out.println("The average of all number is: " + statistics.getAverage());

代码示例来源：origin: com.speedment.runtime/runtime-core

@Override
public LongStream asLongStream() {
  return wrap(stream().asLongStream());
}

代码示例来源：origin: one.util/streamex

@Override
public LongStreamEx asLongStream() {
  return new LongStreamEx(stream().asLongStream(), context);
}

代码示例来源：origin: org.eclipse.microprofile.metrics/microprofile-metrics-api-tck

@Test
public void testSnapshotValues() throws Exception {
  Assert.assertArrayEquals(
      "The histogramInt does not contain the expected values: " + Arrays.toString(SAMPLE_INT_DATA),
      Arrays.stream(SAMPLE_INT_DATA).asLongStream().toArray(), histogramInt.getSnapshot().getValues());
  Assert.assertArrayEquals(
      "The histogramLong does not contain the expected values: " + Arrays.toString(SAMPLE_LONG_DATA),
      SAMPLE_LONG_DATA, histogramLong.getSnapshot().getValues());
}

代码示例来源：origin: CorfuDB/CorfuDB

@Test
@SuppressWarnings("unchecked")
public void multipleTXesAreAppliedWOAccessors()
    throws Exception {
  Map<String, String> testMap = getRuntime().getObjectsView()
      .build()
      .setStreamName("test")
      .setTypeToken(new TypeToken<SMRMap<String, String>>() {})
      .open();
  IntStream.range(0, PARAMETERS.NUM_ITERATIONS_LOW).asLongStream()
      .forEach(l -> {
        try {
          getRuntime().getObjectsView().TXBegin();
          assertThat(testMap.put(Long.toString(l), Long.toString(l)))
              .isNull();
          getRuntime().getObjectsView().TXEnd();
        } catch (TransactionAbortedException tae) {
          throw new RuntimeException(tae);
        }
      });
  assertThat(testMap)
      .hasSize(PARAMETERS.NUM_ITERATIONS_LOW);
}

代码示例来源：origin: CorfuDB/CorfuDB

@Test
@SuppressWarnings("unchecked")
public void multipleTXesAreApplied()
    throws Exception {
  Map<String, String> testMap = getRuntime().getObjectsView()
      .build()
      .setStreamName("test")
      .setTypeToken(CorfuTable.<String,String>getMapType())
      .open();
  IntStream.range(0, PARAMETERS.NUM_ITERATIONS_LOW).asLongStream()
      .forEach(l -> {
        try {
          assertThat(testMap)
              .hasSize((int) l);
          getRuntime().getObjectsView().TXBegin();
          assertThat(testMap.put(Long.toString(l), Long.toString(l)))
              .isNull();
          assertThat(testMap)
              .hasSize((int) l + 1);
          getRuntime().getObjectsView().TXEnd();
          assertThat(testMap)
              .hasSize((int) l + 1);
        } catch (TransactionAbortedException tae) {
          throw new RuntimeException(tae);
        }
      });
  assertThat(testMap)
      .hasSize(PARAMETERS.NUM_ITERATIONS_LOW);
}

代码示例来源：origin: CorfuDB/CorfuDB

@Test
@SuppressWarnings("unchecked")
public void multipleTXesAreAppliedWOAccessors()
    throws Exception {
  Map<String, String> testMap = getRuntime().getObjectsView()
      .build()
      .setStreamName("test")
      .setTypeToken(CorfuTable.<String,String>getMapType())
      .open();
  IntStream.range(0, PARAMETERS.NUM_ITERATIONS_LOW).asLongStream()
      .forEach(l -> {
        try {
          getRuntime().getObjectsView().TXBegin();
          assertThat(testMap.put(Long.toString(l), Long.toString(l)))
              .isNull();
          getRuntime().getObjectsView().TXEnd();
        } catch (TransactionAbortedException tae) {
          throw new RuntimeException(tae);
        }
      });
  assertThat(testMap)
      .hasSize(PARAMETERS.NUM_ITERATIONS_LOW);
}

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