# Java.math.BigDecimal.ulp() Method

## Description

The java.math.BigDecimal.ulp() returns the size of an ulp, a unit in the last place, of this BigDecimal. An ulp of a nonzero BigDecimal value is the positive distance between this value and the BigDecimal value next larger in magnitude with the same number of digits.

An ulp of a zero value is numerically equal to 1 with the scale of this. The result is stored with the same scale as this so the result for zero and nonzero values is equal to [1, this.scale()].

## Declaration

Following is the declaration for java.math.BigDecimal.ulp() method.

```public BigDecimal ulp()
```

NA

## Return Value

This method returns the size of an ulp of BigDecimal.

NA

## Example

The following example shows the usage of math.BigDecimal.ulp() method.

```package com.tutorialspoint;

import java.math.*;

public class BigDecimalDemo {

public static void main(String[] args) {

// create 4 BigDecimal objects
BigDecimal bg1, bg2, bg3, bg4;

bg1 = new BigDecimal("123");
bg2 = new BigDecimal("1.23");

// assign ulp value of bg1, bg2 to bg3, bg4
bg3 = bg1.ulp();
bg4 = bg2.ulp();

String str1 = "ULP value of " + bg1 + " is " + bg3;
String str2 = "ULP value of " + bg2 + " is " + bg4;

// print bg3, bg4 values
System.out.println( str1 );
System.out.println( str2 );
}
}
```

Let us compile and run the above program, this will produce the following result −

```ULP value of 123 is 1
ULP value of 1.23 is 0.01
```
java_math_bigdecimal.htm