Java program to find the absolute value of a number

How to find the absolute value of a number in Java:

To find the absolute value of a number, we can use Math.abs method. This is a static method and we can use it with double, float, int or long. In this post, we will learn how to use Math.abs method with example.

Definition of Math.abs:

This method is defined as below:

public static dtype abs(dtype number)

The dtype is the data type and it can be a float, double, integer or long. It returns the absolute value in same data type.

Example of Math.abs:

Below example shows how Math.abs works with different parameters:

public class Example {
    public static void main(String[] args) {
        System.out.println(Math.abs(-29));
        System.out.println(Math.abs(-29.9));
        System.out.println(Math.abs(-20.5434));
    }
}

It will print the below output:

29
29.9
20.5434

Similarly, we can use Math.abs with float and long values.

public class Example {
    public static void main(String[] args) {
        float value1 = -5.67f;
        long value2 = -654L;

        System.out.println(Math.abs(value1));
        System.out.println(Math.abs(value2));
    }
}

It will print:

5.67
654

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