java.lang.Double.compare()方法的使用及代码示例

x33g5p2x  于2022-01-17 转载在 其他  
字(5.8k)|赞(0)|评价(0)|浏览(220)

本文整理了Java中java.lang.Double.compare()方法的一些代码示例,展示了Double.compare()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。Double.compare()方法的具体详情如下:
包路径:java.lang.Double
类名称:Double
方法名:compare

Double.compare介绍

[英]Compares the two specified double values. There are two special cases:

  • Double.NaN is equal to Double.NaN and it is greater than any other double value, including Double.POSITIVE_INFINITY;
  • +0.0d is greater than -0.0d
    [中]

代码示例

代码示例来源:origin: google/guava

/**
 * Compares the two specified {@code double} values. The sign of the value returned is the same as
 * that of <code>((Double) a).{@linkplain Double#compareTo compareTo}(b)</code>. As with that
 * method, {@code NaN} is treated as greater than all other values, and {@code 0.0 > -0.0}.
 *
 * <p><b>Note:</b> this method simply delegates to the JDK method {@link Double#compare}. It is
 * provided for consistency with the other primitive types, whose compare methods were not added
 * to the JDK until JDK 7.
 *
 * @param a the first {@code double} to compare
 * @param b the second {@code double} to compare
 * @return a negative value if {@code a} is less than {@code b}; a positive value if {@code a} is
 *     greater than {@code b}; or zero if they are equal
 */
public static int compare(double a, double b) {
 return Double.compare(a, b);
}

代码示例来源:origin: hankcs/HanLP

@Override
  public int compare(PairFrequency o1, PairFrequency o2)
  {
    return -Double.compare(o1.mi, o2.mi);
  }
});

代码示例来源:origin: hankcs/HanLP

@Override
  public int compareTo(QueueElement other)
  {
    return Double.compare(weight, other.weight);
  }
}

代码示例来源:origin: hankcs/HanLP

@Override
  public int compare(PairFrequency o1, PairFrequency o2)
  {
    return -Double.compare(o1.le, o2.le);
  }
});

代码示例来源:origin: hankcs/HanLP

@Override
  public int compare(PairFrequency o1, PairFrequency o2)
  {
    return -Double.compare(o1.re, o2.re);
  }
});

代码示例来源:origin: hankcs/HanLP

@Override
  public int compare(PairFrequency o1, PairFrequency o2)
  {
    return -Double.compare(o1.score, o2.score);
  }
});

代码示例来源:origin: hankcs/HanLP

@Override
public int compareTo(State o)
{
  return Double.compare(cost, o.cost);
}

代码示例来源:origin: org.apache.commons/commons-lang3

/**
 * Compares this mutable to another in ascending order.
 *
 * @param other  the other mutable to compare to, not null
 * @return negative if this is less, zero if equal, positive if greater
 */
@Override
public int compareTo(final MutableDouble other) {
  return Double.compare(this.value, other.value);
}

代码示例来源:origin: google/guava

@Override
public int compare(double[] left, double[] right) {
 int minLength = Math.min(left.length, right.length);
 for (int i = 0; i < minLength; i++) {
  int result = Double.compare(left[i], right[i]);
  if (result != 0) {
   return result;
  }
 }
 return left.length - right.length;
}

代码示例来源:origin: jenkinsci/jenkins

public int compareTo(Tag that) {
    int r = Double.compare(this.ordinal, that.ordinal);
    if (r!=0)   return -r; // descending for ordinal
    return this.hierarchy.compareTo(that.hierarchy);
  }
}

代码示例来源:origin: prestodb/presto

@Override
public boolean equals(Object o)
{
  if (this == o) {
    return true;
  }
  if (o == null || getClass() != o.getClass()) {
    return false;
  }
  Estimate estimate = (Estimate) o;
  return Double.compare(estimate.value, value) == 0;
}

代码示例来源:origin: skylot/jadx

private static String doubleToString(double value) {
  if (Double.compare(value, Math.floor(value)) == 0
      && !Double.isInfinite(value)) {
    return Integer.toString((int) value);
  }
  // remove trailing zeroes
  NumberFormat f = NumberFormat.getInstance(Locale.ROOT);
  f.setMaximumFractionDigits(4);
  f.setMinimumIntegerDigits(1);
  return f.format(value);
}

代码示例来源:origin: google/guava

@Override
public ComparisonChain compare(double left, double right) {
 return classify(Double.compare(left, right));
}

代码示例来源:origin: prestodb/presto

@Override
public int compareTo(Block leftBlock, int leftPosition, Block rightBlock, int rightPosition)
{
  double leftValue = longBitsToDouble(leftBlock.getLong(leftPosition, 0));
  double rightValue = longBitsToDouble(rightBlock.getLong(rightPosition, 0));
  return Double.compare(leftValue, rightValue);
}

代码示例来源:origin: hankcs/HanLP

@Override
  public int compareTo(Cluster<K> o)
  {
    return Double.compare(o.sectioned_gain(), sectioned_gain());
  }
}

代码示例来源:origin: spring-projects/spring-framework

@Override
  protected int compareParameters(MediaType mediaType1, MediaType mediaType2) {
    double quality1 = mediaType1.getQualityValue();
    double quality2 = mediaType2.getQualityValue();
    int qualityComparison = Double.compare(quality2, quality1);
    if (qualityComparison != 0) {
      return qualityComparison;  // audio/*;q=0.7 < audio/*;q=0.3
    }
    return super.compareParameters(mediaType1, mediaType2);
  }
};

代码示例来源:origin: google/guava

private static void testSortDescending(
  double[] input, int fromIndex, int toIndex, double[] expectedOutput) {
 input = Arrays.copyOf(input, input.length);
 Doubles.sortDescending(input, fromIndex, toIndex);
 // GWT's Arrays.equals doesn't appear to handle NaN correctly, so test each element individually
 for (int i = 0; i < input.length; i++) {
  assertEquals(0, Double.compare(expectedOutput[i], input[i]));
 }
}

代码示例来源:origin: google/guava

private static void testSortDescending(double[] input, double[] expectedOutput) {
 input = Arrays.copyOf(input, input.length);
 Doubles.sortDescending(input);
 // GWT's Arrays.equals doesn't appear to handle NaN correctly, so test each element individually
 for (int i = 0; i < input.length; i++) {
  assertEquals(0, Double.compare(expectedOutput[i], input[i]));
 }
}

代码示例来源:origin: google/guava

private static void runTestFuzzyCompare(int toleranceIndex) {
 double tolerance = get(TOLERANCE_CANDIDATES, toleranceIndex);
 for (double a : ALL_DOUBLE_CANDIDATES) {
  for (double b : ALL_DOUBLE_CANDIDATES) {
   int expected = DoubleMath.fuzzyEquals(a, b, tolerance) ? 0 : Double.compare(a, b);
   int actual = DoubleMath.fuzzyCompare(a, b, tolerance);
   assertEquals(Integer.signum(expected), Integer.signum(actual));
  }
 }
}

代码示例来源:origin: prestodb/presto

private void testCustomAggregation(Double[] values, int n)
  {
    PriorityQueue<Double> heap = new PriorityQueue<>(n, (x, y) -> -Double.compare(x, y));
    Arrays.stream(values).filter(x -> x != null).forEach(heap::add);
    Double[] expected = new Double[heap.size()];
    for (int i = heap.size() - 1; i >= 0; i--) {
      expected[i] = heap.remove();
    }
    testAggregation(Arrays.asList(expected), createDoublesBlock(values), createLongRepeatBlock(n, values.length));
  }
}

相关文章