## Java: How to square a number

Java math FAQ: How do I square a number in Java?

You can square a number in Java in at least two different ways:

- Multiply the number by itself.
- Call the
*Math.pow*function.

## Square a number by multiplying it by itself

Here’s how to square a number by multiplying it by itself:

i = 2 int square = i * i

In that case, if you print the value of `square`

, it will be 4.