BigDecimal ulp() Method in Java

The java.math.BigDecimal.ulp() is an inbuilt method in Java that returns the size of an ulp(unit in the last place) of this BigDecimal.

  • An ulp of a nonzero BigDecimal value is defined as 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()].

Syntax:

public BigDecimal ulp()

Parameter: The method does not accept any parameter.



Return value: This method returns the size of an ulp of BigDecimal.

Examples:

Input: 4.25
Output: 0.01

Input: 1789
Output: 1

Below programs illustrates the above mentioned method:
Program 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Program to illustrate the ulp() method of BigDecimal 
  
import java.math.*;
  
public class gfg {
  
    public static void main(String[] args)
    {
  
        // Assigning BigDecimal object
        BigDecimal b1 = new BigDecimal("1789");
        BigDecimal b2 = new BigDecimal("4.25");
  
        // Assigning ulp value of BigDecimal object b1, b2 to b3, b4
        BigDecimal b3 = b1.ulp();
        BigDecimal b4 = b2.ulp();
  
        // Printing b3, b4 values
        System.out.println("ULP value of " + b1 + " is " + b3);
        System.out.println("ULP value of " + b2 + " is " + b4);
    }
}

chevron_right






                        filter_none









Output:


ULP value of 1789 is 1
ULP value of 4.25 is 0.01





Program 2:











                                    filter_none




                                    edit

                                    close




                                    play_arrow




                                    link

                                    brightness_4

                                    code
                                




















// Program to illustrate the ulp() method of BigDecimal  


  


import java.math.*; 


  


public class gfg { 


  


    public static void main(String[] args) 


    { 


  


        // Assigning BigDecimal object 


        BigDecimal b1 = new BigDecimal("78645"); 


        BigDecimal b2 = new BigDecimal("4.252547"); 


  


        // Assign ulp value of BigDecimal object b1, b2 to b3, b4 


        BigDecimal b3 = b1.ulp(); 


        BigDecimal b4 = b2.ulp(); 


  


        // Printing b3, b4 values 


        System.out.println("ULP value of " + b1 + " is " + b3); 


        System.out.println("ULP value of " + b2 + " is " + b4); 


    } 


} 



















                        chevron_right







                        filter_none









Output:


ULP value of 78645 is 1
ULP value of 4.252547 is 0.000001





Reference: https://docs.oracle.com/javase/7/docs/api/java/math/BigDecimal.html#ulp()



          
          
          
          

            

    

        My Personal Notes
        arrow_drop_up
    

    

        
        

            
            
        

    


Recommended Posts:
Twinkl Bajaj
Contented with little yet wishing for more
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please Improve this article if you find anything incorrect by clicking on  the "Improve Article" button below.