java.math.BigDecimal.toBigInteger()方法的使用及代码示例

x33g5p2x  于2022-01-16 转载在 其他  
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本文整理了Java中java.math.BigDecimal.toBigInteger()方法的一些代码示例，展示了BigDecimal.toBigInteger()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。BigDecimal.toBigInteger()方法的具体详情如下：
包路径：java.math.BigDecimal
类名称：BigDecimal
方法名：toBigInteger

BigDecimal.toBigInteger介绍

[英]Returns this BigDecimal as a big integer instance. A fractional part is discarded.
[中]将此BigDecimal作为大整数实例返回。一小部分被丢弃。

代码示例

代码示例来源：origin: protostuff/protostuff

@Override
public BigInteger toBigInteger()
{
  return new BigDecimal(value).toBigInteger();
}

代码示例来源：origin: prestodb/presto

protected void convertNumberToBigInteger() throws IOException
{
  if ((_numTypesValid & NR_BIGDECIMAL) != 0) {
    // here it'll just get truncated, no exceptions thrown
    _numberBigInt = _numberBigDecimal.toBigInteger();
  } else if ((_numTypesValid & NR_LONG) != 0) {
    _numberBigInt = BigInteger.valueOf(_numberLong);
  } else if ((_numTypesValid & NR_INT) != 0) {
    _numberBigInt = BigInteger.valueOf(_numberInt);
  } else if ((_numTypesValid & NR_DOUBLE) != 0) {
    _numberBigInt = BigDecimal.valueOf(_numberDouble).toBigInteger();
  } else {
    _throwInternal();
  }
  _numTypesValid |= NR_BIGINT;
}

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

if (number instanceof BigDecimal) {
  return (T) ((BigDecimal) number).toBigInteger();
  return (T) BigInteger.valueOf(number.longValue());
return (T) new BigDecimal(number.toString());

代码示例来源：origin: org.elasticsearch/elasticsearch

/** Return the long that {@code stringValue} stores or throws an exception if the
 *  stored value cannot be converted to a long that stores the exact same
 *  value and {@code coerce} is false. */
public static long toLong(String stringValue, boolean coerce) {
  try {
    return Long.parseLong(stringValue);
  } catch (NumberFormatException e) {
    // we will try again with BigDecimal
  }
  final BigInteger bigIntegerValue;
  try {
    BigDecimal bigDecimalValue = new BigDecimal(stringValue);
    bigIntegerValue = coerce ? bigDecimalValue.toBigInteger() : bigDecimalValue.toBigIntegerExact();
  } catch (ArithmeticException e) {
    throw new IllegalArgumentException("Value [" + stringValue + "] has a decimal part");
  } catch (NumberFormatException e) {
    throw new IllegalArgumentException("For input string: \"" + stringValue + "\"");
  }
  if (bigIntegerValue.compareTo(MAX_LONG_VALUE) > 0 || bigIntegerValue.compareTo(MIN_LONG_VALUE) < 0) {
    throw new IllegalArgumentException("Value [" + stringValue + "] is out of range for a long");
  }
  return bigIntegerValue.longValue();
}

代码示例来源：origin: thymeleaf/thymeleaf

static Number computeValue(final String value) {
  final BigDecimal bigDecimalValue = new BigDecimal(value);
  if (bigDecimalValue.scale() > 0) {
    return bigDecimalValue;
  }
  return bigDecimalValue.toBigInteger();
}

代码示例来源：origin: loklak/loklak_server

return ((BigDecimal) val).toBigInteger();
return new BigDecimal(((Number) val).doubleValue()).toBigInteger();
return BigInteger.valueOf(((Number) val).longValue());
  return new BigDecimal(valStr).toBigInteger();

代码示例来源：origin: redisson/redisson

protected void convertNumberToBigInteger() throws IOException
{
  if ((_numTypesValid & NR_BIGDECIMAL) != 0) {
    // here it'll just get truncated, no exceptions thrown
    _numberBigInt = _numberBigDecimal.toBigInteger();
  } else if ((_numTypesValid & NR_LONG) != 0) {
    _numberBigInt = BigInteger.valueOf(_numberLong);
  } else if ((_numTypesValid & NR_INT) != 0) {
    _numberBigInt = BigInteger.valueOf(_numberInt);
  } else if ((_numTypesValid & NR_DOUBLE) != 0) {
    _numberBigInt = BigDecimal.valueOf(_numberDouble).toBigInteger();
  } else {
    _throwInternal();
  }
  _numTypesValid |= NR_BIGINT;
}

代码示例来源：origin: stackoverflow.com

BigInteger k = new BigDecimal(doubleValue).toBigInteger();

代码示例来源：origin: loklak/loklak_server

return ((BigDecimal) val).toBigInteger();
return new BigDecimal(((Number) val).doubleValue()).toBigInteger();
return BigInteger.valueOf(((Number) val).longValue());
  return new BigDecimal(valStr).toBigInteger();

代码示例来源：origin: immutables/immutables

@Override
public BigInteger getBigIntegerValue() throws IOException {
 final Number value = getNumberValue();
 if (value instanceof BigInteger) {
  return (BigInteger) value;
 } else if (value instanceof BigDecimal) {
  return ((BigDecimal) value).toBigInteger();
 }
 return BigInteger.valueOf(value.longValue());
}

代码示例来源：origin: org.codehaus.groovy/groovy

private boolean isIntegral(Number stepSize) {
  BigDecimal tempStepSize = new BigDecimal(stepSize.toString());
  return tempStepSize.equals(new BigDecimal(tempStepSize.toBigInteger()));
}

代码示例来源：origin: org.codehaus.groovy/groovy

final BigInteger toTemp = new BigInteger(to.toString());
  final BigInteger toNum = inclusive ? toTemp : toTemp.subtract(BigInteger.ONE);
  final BigInteger sizeNum = new BigDecimal(toNum.subtract(fromNum)).divide(new BigDecimal(stepSize.longValue()), BigDecimal.ROUND_DOWN).toBigInteger().add(BigInteger.ONE);
  tempsize = sizeNum.compareTo(BigInteger.valueOf(Integer.MAX_VALUE)) == -1 ? sizeNum.intValue() : Integer.MAX_VALUE;
  shortcut = true;
} else if (((from instanceof BigDecimal || from instanceof BigInteger) && to instanceof Number) ||
    ((to instanceof BigDecimal || to instanceof BigInteger) && from instanceof Number)) {
  final BigDecimal fromNum = new BigDecimal(from.toString());
  final BigDecimal toTemp = new BigDecimal(to.toString());
  final BigDecimal toNum = inclusive ? toTemp : toTemp.subtract(new BigDecimal("1.0"));
  final BigInteger sizeNum = toNum.subtract(fromNum).divide(new BigDecimal(stepSize.longValue()), BigDecimal.ROUND_DOWN).toBigInteger().add(BigInteger.ONE);
  tempsize = sizeNum.compareTo(BigInteger.valueOf(Integer.MAX_VALUE)) == -1 ? sizeNum.intValue() : Integer.MAX_VALUE;
  shortcut = true;

代码示例来源：origin: prestodb/presto

@Override
public BigInteger getBigIntegerValue() throws IOException
{
  Number n = getNumberValue();
  if (n instanceof BigInteger) {
    return (BigInteger) n;
  }
  if (getNumberType() == NumberType.BIG_DECIMAL) {
    return ((BigDecimal) n).toBigInteger();
  }
  // int/long is simple, but let's also just truncate float/double:
  return BigInteger.valueOf(n.longValue());
}

代码示例来源：origin: org.codehaus.groovy/groovy

/**
 * Transform this Number into a BigInteger.
 *
 * @param self a Number
 * @return a BigInteger
 * @since 1.0
 */
public static BigInteger toBigInteger(Number self) {
  if (self instanceof BigInteger) {
    return (BigInteger) self;
  } else if (self instanceof BigDecimal) {
    return ((BigDecimal) self).toBigInteger();
  } else if (self instanceof Double) {
    return new BigDecimal((Double)self).toBigInteger();
  } else if (self instanceof Float) {
    return new BigDecimal((Float)self).toBigInteger();
  } else {
    return new BigInteger(Long.toString(self.longValue()));
  }
}

代码示例来源：origin: org.codehaus.groovy/groovy

final BigInteger sizeNum = toNum.subtract(fromNum).add(new BigInteger("1"));
tempsize = sizeNum.intValue();
if (!BigInteger.valueOf(tempsize).equals(sizeNum)) {
  tempsize = Integer.MAX_VALUE;
  ((to instanceof BigDecimal || to instanceof BigInteger) && from instanceof Number)) {
final BigDecimal fromNum = new BigDecimal(from.toString());
final BigDecimal toNum = new BigDecimal(to.toString());
final BigInteger sizeNum = toNum.subtract(fromNum).add(new BigDecimal(1.0)).toBigInteger();
tempsize = sizeNum.intValue();
if (!BigInteger.valueOf(tempsize).equals(sizeNum)) {
  tempsize = Integer.MAX_VALUE;

代码示例来源：origin: FasterXML/jackson-core

protected void convertNumberToBigInteger() throws IOException
{
  if ((_numTypesValid & NR_BIGDECIMAL) != 0) {
    // here it'll just get truncated, no exceptions thrown
    _numberBigInt = _numberBigDecimal.toBigInteger();
  } else if ((_numTypesValid & NR_LONG) != 0) {
    _numberBigInt = BigInteger.valueOf(_numberLong);
  } else if ((_numTypesValid & NR_INT) != 0) {
    _numberBigInt = BigInteger.valueOf(_numberInt);
  } else if ((_numTypesValid & NR_DOUBLE) != 0) {
    _numberBigInt = BigDecimal.valueOf(_numberDouble).toBigInteger();
  } else {
    _throwInternal();
  }
  _numTypesValid |= NR_BIGINT;
}

代码示例来源：origin: apache/hive

@Override
 protected HiveIntervalDayTime getIntervalDayTime(String arg) {
  BigDecimal bd = new BigDecimal(arg);
  BigDecimal bdSeconds = new BigDecimal(bd.toBigInteger());
  BigDecimal bdNanos = bd.subtract(bdSeconds);
  return new HiveIntervalDayTime(0, 0, 0, bdSeconds.intValueExact(),
    bdNanos.multiply(NANOS_PER_SEC_BD).intValue());
 }
}

代码示例来源：origin: org.freemarker/freemarker

return n;
} else if (n instanceof BigInteger) {
  return new BigDecimal((BigInteger) n);
} else if (n instanceof Long) {
  return new BigDecimal(n.doubleValue());
    return ((OverloadedNumberUtil.IntegerBigDecimal) n).bigIntegerValue();
  } else if (n instanceof BigDecimal) {
    return ((BigDecimal) n).toBigInteger(); 
  } else {
    return BigInteger.valueOf(n.longValue());

代码示例来源：origin: org.codehaus.jackson/jackson-core-asl

protected void convertNumberToBigInteger()
  throws IOException, JsonParseException
{
  if ((_numTypesValid & NR_BIGDECIMAL) != 0) {
    // here it'll just get truncated, no exceptions thrown
    _numberBigInt = _numberBigDecimal.toBigInteger();
  } else if ((_numTypesValid & NR_LONG) != 0) {
    _numberBigInt = BigInteger.valueOf(_numberLong);
  } else if ((_numTypesValid & NR_INT) != 0) {
    _numberBigInt = BigInteger.valueOf(_numberInt);
  } else if ((_numTypesValid & NR_DOUBLE) != 0) {
    _numberBigInt = BigDecimal.valueOf(_numberDouble).toBigInteger();
  } else {
    _throwInternal(); // should never get here
  }
  _numTypesValid |= NR_BIGINT;
}

代码示例来源：origin: apache/drill

@Override
 protected HiveIntervalDayTime getIntervalDayTime(String arg) {
  BigDecimal bd = new BigDecimal(arg);
  BigDecimal bdSeconds = new BigDecimal(bd.toBigInteger());
  BigDecimal bdNanos = bd.subtract(bdSeconds);
  return new HiveIntervalDayTime(0, 0, 0, bdSeconds.intValueExact(),
    bdNanos.multiply(NANOS_PER_SEC_BD).intValue());
 }
}

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