Table of Contents

Can BigDecimal have null value?

**You either never allow null values in database**, application or view and initialize everything with new BigDecimal(0) or perform null checks on every usage for nullable values.

**Can BigDecimal be negative?**

The value of the BigDecimal is (BigInteger/10**scale). A negative scale

will result in a NumberFormatException.

__How do you do null check for BigDecimal?__

You need a check for null values before the comparison. You may use this function for the comparison. If your main goal is validating BigDecimal dataType for nulls, then just make a comparison; **yourBigDecimal** !=

## What is BigDecimal scale?

scale() is an inbuilt method in java that returns the scale of this BigDecimal. For zero or positive value, the scale is the number of digits to the right of the decimal point. For negative value, the unscaled value of the number is multiplied by ten to the power of the negation of the scale.

## How do you subtract Bigdecimals?

subtract(BigDecimal subtrahend, MathContext mc) returns a BigDecimal whose value is (this - subtrahend), with rounding according to the context settings. If subtrahend is zero then this, rounded if necessary, is used as the result. If this is zero then the result is subtrahend. negate(mc).

## How do you know if BigDecimal is positive or negative?

## Is BigDecimal an integer?

A BigDecimal consists of a random precision integer unscaled value and a 32-bit integer scale. If greater than or equal to zero, the scale is the number of digits to the right of the decimal point.

## What is the limitation of string method of BigDecimal?

What is the limitation of toString() method of BigDecimal? Explanation: toString() of BigDecimal uses scientific notation to represent numbers known as canonical representation. We must use toPlainString() to avoid scientific notation. 6.

## What is the max value of BigInteger?

BigInteger has no cap on its max size (as large as the RAM on the computer can hold).

## What is rounding mode in Bigdecimals Java?

setScale(int newScale, RoundingMode roundingMode) returns a BigDecimal whose scale is the specified value, and whose unscaled value is determined by multiplying or dividing this BigDecimal's unscaled value by the appropriate power of ten to maintain its overall value.

## How do I know if my BigInteger is zero?

## How does Kotlin compare to BigDecimal?

Use the compareTo method of BigDecimal : public int compareTo(BigDecimal val) Compares this BigDecimal with the specified BigDecimal. Returns: -1, 0, or 1 as this BigDecimal is numerically less than, equal to, or greater than val.

## How do I convert string to int Kotlin?

## How do I compare BigDecimals?

compareTo(BigDecimal val) compares the BigDecimal Object with the specified BigDecimal value. Two BigDecimal objects that are equal in value but have a different scale (like 2.0 and 2.00) are considered equal by this method.

## How do you use the Subtract function in Java?

counter = counter - 1; System. out. println("Subtraction = " + counter);

Subtraction in Java.

Operator | Function |
---|---|

- | Subtract |

+ | Add |

* | Multiply |

/ | Divide |

## What is negate in Java?

Negation is the act of setting a value to its negative equivalent. A value of 2 becomes –2. Contrast negation with the bitwise Not operation, which you implement by using the ~ operator. The Not operation reverses each of the bits in a value.

## What is negate () in Java?

The negate() method of java BigDecimal class is used to obtain a BigDecimal whose value is the negated value (-this) of the BigDecimal with which it is used.

## What is unscaled value?

unscaledValue() returns a BigInteger whose value is the unscaled value of this BigDecimal.

## How do I check if BigDecimal is integer?

Depending on the source/usage of your BigDecimal values it might be faster to check if the scale <= 0 first. If it is, then it's definitely an integer value in the mathematical sense. If it is >0, then it could still be an integer value and the more expensive test would be needed.

## What is scale in BigDecimal divide?

Scale() of Divide method in BigDecimal

Returns a BigDecimal whose value is (this / divisor), and whose preferred scale is (this. scale() - divisor. scale()); So in this case, 37146555.53880000's scale is 8 , and 1000000 's scale is 0 . So the result should have a scale of 8 , not 10 .

## How many digits can BigDecimal hold in Java?

You can store roughly 2 billion digits after the decimal point if scale is set to the maximum value of an integer, although you may run out of memory if you try to do this. If you need to store so many digits that the limit is a problem then you probably need to rethink the design of your program.