# How to use Math.pow in Java

## Table of Contents

Thanks to the `math`

package, Java provides a lot of useful methods for mathematical calculations.

One of the most common operations is exponentiation.

In this post, we'll learn how to use the `pow`

method of the `Math`

class to calculate the power of a number in Java.

## How to calculate the power of a number in Java

As mentioned before, the `Math`

class provides a `pow`

method to calculate the power of a number.

The `pow`

method takes two parameters:

`a`

- the base`b`

- the exponent

That means that the `pow`

method calculates the power of `a`

to the power of `b`

.

Let's see how to use it to calculate squaring the number `5`

:

```
double result = Math.pow(5, 2);
System.out.println(result);
```

```
25.0
```

The result is given in the `double`

type.

If you need it as an `int`

, you can cast it:

```
int result = (int) Math.pow(5, 2);
System.out.println(result);
```

```
25
```

Keep in mind that the base and exponent can be a `double`

as well:

```
double result = Math.pow(5.5, 2);
System.out.println(result);
```

```
30.25
```

## Conclusion

In this post, we learned how to use the `pow`

method of the `Math`

class to calculate the power of a number in Java.

Simply pass it the `base`

and the `exponent`

and it will return the result.

Thanks for reading!

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