Examples of java.math.BigDecimal.precision()

java.math.BigDecimal.precision()
Returns the precision of this {@code BigDecimal}. (The precision is the number of digits in the unscaled value.)
The precision of a zero value is 1. @return the precision of this {@code BigDecimal}. @since 1.5

     */
    private static int roundAway0(BigDecimal b1, BigDecimal b2) {
        int failures = 0;
        BigDecimal exactSum = b1.add(b2);


        for(int precision = 1 ; precision < exactSum.precision()+2; precision++) {
            for(RoundingMode rm : nonExactRoundingModes) {
                MathContext mc = new MathContext(precision, rm);
                BigDecimal roundedExactSum = exactSum.round(mc);


                try {

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        }
        return Boolean.parseBoolean( pigObj.toString() );
      case DECIMAL:
        BigDecimal bd = (BigDecimal)pigObj;
        DecimalTypeInfo dti = (DecimalTypeInfo)hcatFS.getTypeInfo();
        if(bd.precision() > dti.precision() || bd.scale() > dti.scale()) {
          handleOutOfRangeValue(pigObj, hcatFS);
          return null;
        }
        return HiveDecimal.create(bd);
      case CHAR:

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  }


  public static String getBaseDecimal(ExpandedDouble hd) {
    int gg = 64 - hd.getBinaryExponent() - 1;
    BigDecimal bd = new BigDecimal(hd.getSignificand()).divide(new BigDecimal(BigInteger.ONE.shiftLeft(gg)));
    int excessPrecision = bd.precision() - 23;
    if (excessPrecision > 0) {
      bd = bd.setScale(bd.scale() - excessPrecision, BigDecimal.ROUND_HALF_UP);
    }
    return bd.unscaledValue().toString();
  }

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      }
      int binaryExp = binExp - newFrac.bitLength() + frac.bitLength();


      bd = new BigDecimal( frac.shiftRight(frac.bitLength()-binaryExp-1));
    }
    int excessPrecision = bd.precision() - nDec;
    if (excessPrecision > 0) {
      bd = bd.setScale(bd.scale() - excessPrecision, BigDecimal.ROUND_HALF_UP);
    }
    return bd.unscaledValue();
  }

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    }
    else {
      bigNum = new BigDecimal( num.toString() ).stripTrailingZeros();
    }


    int integerPartLength = bigNum.precision() - bigNum.scale();
    int fractionPartLength = bigNum.scale() < 0 ? 0 : bigNum.scale();


    return ( maxIntegerLength >= integerPartLength && maxFractionLength >= fractionPartLength );
  }

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    BigDecimal bigNum = getBigDecimalValue( str );
    if ( bigNum == null ) {
      return false;
    }


    int integerPartLength = bigNum.precision() - bigNum.scale();
    int fractionPartLength = bigNum.scale() < 0 ? 0 : bigNum.scale();


    return ( maxIntegerLength >= integerPartLength && maxFractionLength >= fractionPartLength );
  }

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            return newInfinity(context.runtime, sign1 * sign2);
        }


        BigDecimal res = value.multiply(val.value);
        // FIXME: rounding mode should not be hard-coded. See #mode.
        if (res.precision() > digits) res = res.round(new MathContext(digits,  RoundingMode.HALF_UP));


        return new RubyBigDecimal(context.runtime, res).setResult();
    }
    
    // Calculate appropriate zero or infinity depending on exponent...

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    private int getExponent() {
        if (isZero() || isNaN() || isInfinity()) return 0;


        BigDecimal val = value.abs().stripTrailingZeros();
        return val.precision() - val.scale();
    }


    @JRubyMethod
    public IRubyObject sqrt(IRubyObject arg) {
        Ruby runtime = getRuntime();

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        BigDecimal b1_negate = b1.negate();
        BigDecimal b2_negate = b2.negate();


        b1_negate.precision();
        b2_negate.precision();


        failures += roundAway1(b1,        b2);
        failures += roundAway1(b1,        b2_negate);
        failures += roundAway1(b1_negate, b2);
        failures += roundAway1(b1_negate, b2_negate);

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     */
    private static int roundAway0(BigDecimal b1, BigDecimal b2) {
        int failures = 0;
        BigDecimal exactSum = b1.add(b2);


        for(int precision = 1 ; precision < exactSum.precision()+2; precision++) {
            for(RoundingMode rm : nonExactRoundingModes) {
                MathContext mc = new MathContext(precision, rm);
                BigDecimal roundedExactSum = exactSum.round(mc);


                try {

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