BigDecimal abs() Method in Java

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

// 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

// 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

Java

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

Java

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()

BigDecimal abs() Method in Java

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