Examples of java.math.BigDecimal.doubleValue()

java.math.BigDecimal.doubleValue()
sun.com/docs/books/jls/second_edition/html/conversions.doc.html#25363">narrowing primitive conversion from {@code double} to{@code float} as defined in the Java Language Specification: if this {@code BigDecimal} has too great amagnitude represent as a {@code double}, it will be converted to {@link Double#NEGATIVE_INFINITY} or {@link Double#POSITIVE_INFINITY} as appropriate. Note that even whenthe return value is finite, this conversion can lose information about the precision of the {@code BigDecimal}value. @return this {@code BigDecimal} converted to a {@code double}.

      discount = new BigDecimal(0);


    BigDecimal total = controlTotal.getBigDecimal();
    BigDecimal paid = controlPaid.getBigDecimal();
    if (total!=null && paid!=null) {
      if (paid.doubleValue()<total.doubleValue())
        controlPaid.setValue(null);
      else
        controlChange.setValue(paid.subtract(total));
    }

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        return values.get(index);
      case SUM:
        BigDecimal sum = new BigDecimal(0);
        for (int i = 0; i < values.size(); ++i)
          sum = sum.add(new BigDecimal(values.get(i)));
        return sum.doubleValue();
      case MIN:
        BigDecimal minimum = new BigDecimal(values.get(0));
        for (int i = 1; i < values.size(); ++i)
          if (minimum.compareTo(new BigDecimal(values.get(i))) > 0)
            minimum = new BigDecimal(values.get(i));

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      case MIN:
        BigDecimal minimum = new BigDecimal(values.get(0));
        for (int i = 1; i < values.size(); ++i)
          if (minimum.compareTo(new BigDecimal(values.get(i))) > 0)
            minimum = new BigDecimal(values.get(i));
        return minimum.doubleValue();
      case MAX:
        BigDecimal maximum = new BigDecimal(values.get(0));
        for (int i = 1; i < values.size(); ++i)
          if (maximum.compareTo(new BigDecimal(values.get(i))) < 0)
            maximum = new BigDecimal(values.get(i));

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      case MAX:
        BigDecimal maximum = new BigDecimal(values.get(0));
        for (int i = 1; i < values.size(); ++i)
          if (maximum.compareTo(new BigDecimal(values.get(i))) < 0)
            maximum = new BigDecimal(values.get(i));
        return maximum.doubleValue();
      case FIRST:
        return values.get(0);
      case LAST:
        return values.get(values.size() - 1);
      default:

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            DataAxisProperties yaxis = new DataAxisProperties();


            try {
                BigDecimal round = new BigDecimal(max / 1000d);
                round = round.setScale(0, BigDecimal.ROUND_UP);
                double topValue = round.doubleValue() * 1000;
                yaxis.setUserDefinedScale(0, 500);
                yaxis.setNumItems((int) (topValue / 500)+1);
                yaxis.setShowGridLines(1);
            } catch (PropertyException e) {
                log.warn("",e);

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    percentGain += 1;


    // change factor is between +/- 20%
    BigDecimal percentGainBD =
      (new BigDecimal(percentGain)).setScale(2, BigDecimal.ROUND_HALF_UP);
    if (percentGainBD.doubleValue() <= 0.0)
      percentGainBD = ONE;


    return percentGainBD;
  }

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                        trial = new BigDecimal(s2);
                    }
                }
            }
        }
        if (trial != null && (precision==1 ? trial.floatValue() == value : trial.doubleValue() == value)) {
            return trial;
        } else {
            return initial;
        }
    }

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    @Override
    public String toString(Object obj, ConverterContext convertercontext) {
        if (obj instanceof BigDecimal) {
            BigDecimal decimal = (BigDecimal) obj;
            if (decimal.doubleValue() == Double.NaN)
                return "";
            return super.toString(decimal, convertercontext);
        }
        return ""; // null or not an instance of BigDecimal
    }

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        if (Double.isInfinite(d)) {
            // double arithmetic has overflowed - do it in decimal
            BigDecimal dec = new BigDecimal(value);
            dec = dec.setScale(scale, BigDecimal.ROUND_HALF_EVEN);
            return new DoubleValue(dec.doubleValue());
        }


        // Now apply any rounding needed, using the "round half to even" rule


        double rem = d % 10;

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        MutableDecimal md = new MutableDecimal(value, scale);
        assertEquals(bd.toPlainString(), md.toString());
        String message = "value=" + value + ", scale=" + scale;
        if (bd.abs().compareTo(BD_2_63) < 0)
            assertEquals(message, bd.longValue(), md.longValue());
        assertEquals(message, bd.doubleValue(), md.doubleValue(), Math.abs(bd.doubleValue() / 1e15));


        MutableDecimal md1 = new MutableDecimal(value - 1, scale);
        BigDecimal bd1 = BigDecimal.valueOf(value - 1, scale);
        assertEquals(message, bd.compareTo(bd1), md.compareTo(md1));
        MutableDecimal md2 = new MutableDecimal(value + 1, scale);

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