In the previous article, we have seen Java Program to Convert an Integer Value to Absolute Value

In this article we are going to see how to find absolute value of a float value using Java programming language.

## Java Program to Convert a Float Value to Absolute Value

Before jumping into the program let’s know what is this absolute value first.

**Absolute value:**

In mathematics, the absolute value or modulus of a real number `x`

is x’s numeric value without regard to its sign.

- |x| = x if x is positive
- |x| = −x if x is negative (Here, (-x) is non negative value)
- |0| = 0.

For example,

The absolute value of 5.5 is 5.5 and

The absolute value of −5.5 is also 5.5

Let’s see different ways to find absolute value of an integer value.

### Method-1: Java Program to Convert a Float Value to Absolute Value By Using Math.abs() Method

In Java we have `Math.abs()`

method in `java.lang.Math`

class which can be used to find the absolute value of a number. In this approach we will use this inbuilt `Math.abs()`

method to find the absolute value of integer number.

**Approach:**

- Initialize a float variable
`‘a’`

with a value of -10.11 - Use
`Math.abs()`

method to find the absolute value of`a`

.

**Program**:

public class Main { public static void main(String[] args) { //a float value declared float a = -10.11f; //finding absolute value using Math.abs(a) and printing the result System.out.println("Absolute value of " + a + " is " + Math.abs(a)); } }

Output: Absolute value of -10.11 is 10.11

### Method-2: Java Program to Convert a Float Value to Absolute Value By Using If-else Statement

**Approach:**

- Initialize a float variable with a value -10.11.
- Check if the value of the variable is negative i.e., less than zero, to get the absolute value, print the negative of the number.
- Else if it is positive, print the number as it is.

**Program**:

public class Main { public static void main(String[] args) { //a float value declared float a = -10.11f; //If 'a' value is less than zero then result is -a if (a < 0) { System.out.println("Absolute value of " + a + " is " + -a); } //else result is number itself else { System.out.println("Absolute value of " + a + " is " + a); } } }

Output: Absolute value of -10.11 is 10.11

### Method-3: Java Program to Convert a Float Value to Absolute Value By Using Ternary Operator

**Approach:**

- Initialize a float variable with initial value as 10.11f.
- Use the ternary operator to find the absolute value.
- Here the condition we have to check is whether the given value is greater than 0 or not. So put that before the question mark.
- If it’s greater than 0 i.e., positive, we’ve to return the value as it is so simply write the variable name in place of expression one.
- If it’s less than 0 i.e., negative, we’ve to return the negative of that value (negative of negative yields positive value)
- Print the value.

**Program**:

public class Main { public static void main(String[] args) { //a float value declared float a = 10.11f; System.out.print("Absolute value of " + a); //Find absolute value using ternary operator a = a > 0 ? a : -a; System.out.println(" is " + a); } }

Output: Absolute value of 10.11 is 10.11

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