Java Math abs() is an inbuilt function that returns the absolute (positive) value of an int value. The abs() method gives an absolute value of the argument.

To find the absolute value of a given argument in Java, the **java.lang.Math.abs()** method is used. This is often helpful when the program deals with mathematical expressions where the |x| value (the absolute value of a variable x) is required to be calculated.

**Java Math**.**abs()** method returns the **absolute** (positive) value of an int value. The Math.abs() method gives the **absolute** value of the argument. The argument can be int, double, long, and float.

```
public static int abs(int x)
public static long abs(long x)
public static float abs(float x)
public static double abs(double x)
```

What is OpenJDK? OpenJDk or Open Java Development Kit is a free, open-source framework of the Java Platform, Standard Edition (or Java SE).

Math class in Java Example. Using the Math class, we can implement methods like min(), max(), avg(), sin(), cos(), tan(), round(), ceil(), floor(), abs(), pow(), floor(), ciel(), round()

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