## Can Java BigDecimal be negative?

The value of the BigDecimal is (BigInteger/10**scale). A negative scale will result in a NumberFormatException.

## 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.

**How do I check if BigDecimal is null?**

If your main goal is validating BigDecimal dataType for nulls, then just make a comparison; yourBigDecimal != null. The above statement is enough for comparison and checking.

**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.

### How do you negate a value in Java?

Math. negateExact() is a built-in function in Java that returns the negation of the argument, throwing an exception if the result overflows the specified datatype either long or int depending on which data type has been used on the method argument.

### How do I set empty value in BigDecimal?

for this BigDecimal how do I set a empty value. Setting this value is a must. objName. setNetWeight(new BigDecimal(“” or null or ” “)) all results in NumberFormatException.

**What is the default value for BigDecimal?**

If you are using type BigDecimal, then its default value is null (it is object, not primitive type), so you get [1] automatically.

**How do I remove trailing zeros from BigDecimal?**

stripTrailingZeros() is an inbuilt method in Java that returns a BigDecimal which is numerically equal to this one but with any trailing zeros removed from the representation. So basically the function trims off the trailing zero from the BigDecimal value.

## What is the default value of BigDecimal in Java?

null

If you are using type BigDecimal, then its default value is null (it is object, not primitive type), so you get [1] automatically.

## How do you negate in Java?

The not operator is a logical operator, represented in Java by the ! symbol. It’s a unary operator that takes a boolean value as its operand. The not operator works by inverting (or negating) the value of its operand.

**How do you negate binary numbers in Java?**

String binary = Integer. toBinaryString(-1); // convert -1 to binary // 11111111 11111111 11111111 11111111 (two’s complement) int number = Integer. parseInt(binary, 2); // convert negative binary back to integer System.

**How do you stop a negative number in Java?**

To convert negative number to positive number (this is called absolute value), uses Math. abs(). This Math. abs() method is work like this “ number = (number < 0? -number : number); “.

### What is value of BigDecimal in Java?

math. BigDecimal. valueOf(double val) is an inbuilt method in java that translates a double into a BigDecimal, using the double’s canonical string representation provided by the Double. toString(double) method.

### How do you remove leading and trailing zeros in Java?

The replaceAll() method of the String class accepts two strings representing a regular expression and a replacement String and replaces the matched values with given String. The ^0+(?! $)”; To remove the leading zeros from a string pass this as first parameter and “” as second parameter.

**How do you remove trailing zeros from a string?**

Algorithm. Step 1: Get the string Step 2: Count number of trailing zeros n Step 3: Remove n characters from the beginning Step 4: return remaining string.