# Program for Area Of Square

A 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.

**Examples :**

Input : 4 Output :16 Input :8 Output :64

**Formula**

## C++

`// CPP program to find` `// the area of the square` `#include <iostream>` `using` `namespace` `std;` `int` `areaSquare(` `int` `side)` `{` ` ` `int` `area = side * side;` ` ` `return` `area;` `}` `// Driver Code` `int` `main()` `{` ` ` `int` `side = 4;` ` ` `cout << areaSquare(side);` ` ` `return` `0;` `}` |

## Java

`// Java program to find` `// the area of the square` `import` `java.util.*;` `class` `GFG` `{` ` ` `static` `int` `areaSquare(` `int` `side)` ` ` `{` ` ` `int` `area = side * side;` ` ` `return` `area;` ` ` `}` ` ` ` ` `// Driver Code` ` ` `public` `static` `void` `main(String[] args)` ` ` `{` ` ` `int` `side = ` `5` `;` ` ` `System.out.println(areaSquare(` `4` `));` ` ` `}` `}` |

## Python3

`# Python3 code to find` `# the area of the square` `def` `areaSquare( side ):` ` ` `area ` `=` `side ` `*` `side` ` ` `return` `area` `# Driver Code` `side ` `=` `4` `print` `(areaSquare(side))` `# This code is contributed` `# by "Sharad_Bhardwaj".` |

## C#

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

## PHP

`<?php` `// PHP program to find` `// the area of the square` `function` `areaSquare(` `$side` `)` `{` ` ` `$area` `= ` `$side` `* ` `$side` `;` ` ` `return` `$area` `;` `}` `// Driver Code` `$side` `= 4;` `echo` `(areaSquare(` `$side` `));` `// This code is contributed by Ajit.` `?>` |

## Javascript

`<script>` `// Javascript program to find` `// the area of the square` `function` `areaSquare(side)` `{` ` ` `let area = side * side;` ` ` `return` `area;` `}` `// Driver Code` ` ` `let side = 4;` ` ` `document.write(areaSquare(side));` `// This code is contributed by Mayank Tyagi` `</script>` |

**Output :**

16

**Time complexity **: O(1) **Auxiliary Space** : O(1)

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