BigDecimal abs() Method in Java Last Updated : 04 Dec, 2018 Improve Improve Like Article Like Save Share Report The java.math.BigDecimal.abs() is used to return a BigDecimal whose value is the absolute value of the BigDecimal and whose scale is this.scale(). Syntax : public BigDecimal abs() Parameters: The method does not accept any parameters. Return Value: Returns a BigDecimal whose value is the absolute value of this BigDecimal scale is this.scale(). Below programs will illustrate the use of java.math.BigDecimal.abs() method : Program 1 // Java program to demonstrate abs() method import java.io.*; import java.math.*; public class GFG { public static void main(String[] args) { // Creating a BigDecimal object BigDecimal num; // Assigning value to num num = new BigDecimal("-51"); // Displaying the result System.out.println("Absolute value is " + num.abs()); } } Output: Absolute value is 51 Program 2 // Java program to demonstrate abs() method import java.io.*; import java.math.*; public class GFG { public static void main(String[] args) { // creating a BigDecimal object BigDecimal num; // assign value to num num = new BigDecimal("-63.93471"); System.out.println("Absolute value is " + num.abs()); } } Output: Absolute value is 63.93471 The java.math.BigDecimal.abs(MathContext mc) returns a BigDecimal whose value is the absolute value of the BigDecimal obtained by rounding it off according to the precision settings specified by mc, an object of MathContext class. Syntax: public BigDecimal abs(MathContext mc) Parameters : The function accepts only one parameter mc of MathContext class object, which specifies precision settings to be used for rounding off the BigDecimal. Return Value: Returns a BigDecimal whose value is the absolute value of this BigDecimal obtained by rounding it off according to the precision settings specified by the object mc. Exception : The method throws an ArithmeticException, if the result is inexact but the rounding mode is UNNECESSARY. Below programs illustrate the use of java.math.BigDecimal.abs() method with specified MathContext : Program 1 import java.io.*; import java.math.*; public class GFG { public static void main(String[] args) { // Create 2 BigDecimal objects BigDecimal num, absv; MathContext mc = new MathContext(2); // Assign value to num num = new BigDecimal("51.93471"); // Assign absolute value of num to absv rounded // to 2 precision using mc absv = num.abs(mc); System.out.println("Absolute value, rounded to 2 precision is " + absv); } } Output: Absolute value, rounded to 2 precision is 52 Program 2 import java.io.*; import java.math.*; public class GFG { public static void main(String[] args) { // Create 2 BigDecimal objects BigDecimal num, absv; MathContext mc = new MathContext(15); // Assign value to num num = new BigDecimal("143567812363.93471"); // Assign absolute value of num to absv rounded // to 15 precision using mc absv = num.abs(mc); System.out.println("Absolute value, rounded to 15 precision is " + absv); } } Output: Absolute value, rounded to 15 precision is 143567812363.935 Reference: https://docs.oracle.com/javase/7/docs/api/java/math/BigDecimal.html#abs() Like Article Suggest improvement Next BigDecimal ulp() Method in Java Share your thoughts in the comments Add Your Comment Please Login to comment...