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## How can I compare two BigDecimal values?

**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 I know if BigDecimal is equal?

**equals() method** checks for equality of a BigDecimal value with the object passed. This method considers two BigDecimal objects equal if only if they are equal in value and scale.

### BigDecimal basic concept in Java

### Images related to the topicBigDecimal basic concept in Java

## How do you equate BigDecimal in java?

**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 does BigDecimal compare to null?

Compare two BigDecimals. if (b1 == null && b2 == null) { return 0; if (b1 == null) { b1 = ZERO; if (b2 == null) { b2 = ZERO; … Null safe compareTo of two BigDecimal s. if (b0 == b1) { return 0; } else if (b0 == null) { return 1; } else if (b1 == null) { return -1; } else { return b0.

## 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 BigDecimal in java?

A BigDecimal **consists of an arbitrary precision integer unscaled value and a 32-bit integer scale**. If zero or positive, the scale is the number of digits to the right of the decimal point. If negative, the unscaled value of the number is multiplied by ten to the power of the negation of the scale.

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

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

## What is the range of BigDecimal in Java?

Primitive type | Size in memory | Value range |
---|---|---|

int |
32 bits |
-2147483648 to 2147483647 |

long | 64 bit | -9223372036854775808 to 9223372036854775807 |

float | 32 bits | (2 to the power of -149) to ((2 to the power of -23) * 2 to the power of 127) |

double | 64 bit | (-2 to the power of 63) to ((2 to the power of 63) – 1) |

## How do you do null check for BigDecimal in Java?

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 the value of BigDecimal zero?

static BigDecimal TEN − The value 10, with a scale of 0. static BigDecimal ZERO − **The value 0, with a scale of 0**.

## 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.

## What does the compareTo method do in java?

Java String compareTo() The Java String class compareTo() method **compares the given string with the current string lexicographically**. It returns a positive number, negative number, or 0. It compares strings on the basis of the Unicode value of each character in the strings.

### Java Doubles vs BigDecimals – Get the right result every time

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## How do I know if BigDecimal is zero?

**How to check if BigDecimal variable == 0 in java?**

- BigDecimal price; // assigned elsewhere.
- if (price.compareTo(new BigDecimal(“0.00”)) == 0) {
- return true;
- }

## Can BigDecimal be null in Java?

**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 you convert big decimal to string?

**BigDecimal toString() Method Example**

- import java.math.BigDecimal;
- public class BigDecimalExample.
- {
- public static void main(String args[])
- {
- BigDecimal bd=new BigDecimal(234.7843);
- String str=bd.toString();
- System.out.println(str);

## Is BigDecimal pass by reference Java?

**Passing immutable object references**

Examples include the wrapper types Integer , Double , Float , Long , Boolean , BigDecimal , and of course the very well known String class.

## How do you use setScale in Java?

setScale(int newScale, int roundingMode)

This method is used to calculate 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.

## What is the base of BigDecimal data type?

4. What is the base of BigDecimal data type? Explanation: A BigDecimal is **n*10^scale** where n is an arbitrary large signed integer. Scale can be thought of as the number of digits to move the decimal point to left or right.

## What does 0E 8 mean?

0E-8 is a translation of **0 with 8 decimal places**.

## What is the difference between BigDecimal and BigInteger in Java?

The main difference between the BigInteger and BigDecimal is that **BigInteger supports arbitrary-precision integers and BigDecimal is for arbitrary-precision fixed-point numbers**.

## Is BigDecimal a wrapper class?

**BigDecimal is similar to other wrapper classes** having specific methods for addition, subtraction, multiplication, and division. This wrapper class operations are slightly slower compared to primitive types.

## Is BigDecimal add NULL safe?

Method. **Null safe** convenience method for adding two BigDecimal objects.

### Comparing BigDecimal in Java NetBeans

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## Is Java BigDecimal immutable?

Since **BigDecimal is immutable**, these operations do not modify the existing objects. Rather, they return new objects.

## What is precision BigDecimal?

precision() method returns the precision of this BigDecimal. The precision is **the number of digits in the unscaled value**. The precision of a zero value is 1.

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