# Program to find the area of a Square

Last Updated : 16 Feb, 2023

What is a square ?
Square is a flat shape, in one plane, defined by four points at the four corners. A square has four sides all of equal length, and four corners, all right angles (90 degree angles). A square is a kind of rectangle but with all sides equal.

Formula :

Examples:

```Input : 4
Output :16

Input :8
Output :64```

## CPP

 `// CPP program to find the area of a square ``#include ``using` `namespace` `std;  `` ` `// function to find the area ``int` `area_fun(``int` `side) ``{ ``int` `area = side * side;  ``return` `area; ``} `` ` `// Driver program ``int` `main() ``{ ``int` `side = 4; ``int` `area = area_fun(side); ``cout << area; ``return` `0;  ``} `

## Java

 `// Java program to find ``// the area of a square `` ` `class` `GFG ``{ `` ` `// function to find the area ``static` `int` `area_fun(``int` `side) ``{ ``int` `area = side * side;  ``return` `area; ``} `` ` `// Driver code ``public` `static` `void` `main(String arg[])  ``{ ``    ``int` `side = ``4``; ``    ``int` `area = area_fun(side); ``    ``System.out.println(area); ``} ``} `` ` `// This code is contributed ``// by Anant Agarwal. `

## Python3

 `# Python program to find ``# the area of a square `` ` `# function to find the area ``def` `area_fun(side): ``    ``area ``=` `side ``*` `side  ``    ``return` `area `` ` `# Driver program ``side ``=` `4``area ``=` `area_fun(side) ``print` `(area) `` ` `# This Code is Contributed ``# by Azkia Anam. `

## C#

 `// C# program to find ``// the area of a square ``using` `System; `` ` `class` `GFG { `` ` `    ``// function to find the area ``    ``static` `int` `area_fun(``int` `side) ``    ``{ ``        ``int` `area = side * side; ``        ``return` `area; ``    ``} `` ` `    ``// Driver code ``    ``public` `static` `void` `Main() ``    ``{ ``        ``int` `side = 4; ``        ``int` `area = area_fun(side); ``        ``Console.WriteLine(area); ``    ``} ``} `` ` `// This code is contributed by vt_m. `

## PHP

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## Javascript

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Output:

`16`

Time complexity: O(1)

space complexity: O(1)

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