Perimeter of square

Write a program to find the perimeter of the square.

Example 1:

Input: side=6
Output: 24

Approach: Given side of the square. 

Perimeter is 4*side.

Java

public class PerimeterofSquare {
    public static void main(String[] args) {
        double side = 6;
        double perimeter = perimeterSquare(side);
        System.out.println("Perimeter of square is " + perimeter);
    }

    private static double perimeterSquare(double side) {
        return 4 * side;
    }
}

C++

#include <bits/stdc++.h>
using namespace std;
//function to find the  perimeter
//of the square
double perimeterSquare(double side)
{
    double perimeter=4*side;
    return perimeter;
}
int main()
{
    double side=6;
    double perimeter=perimeterSquare(side);
    cout<<"Perimeter of square is ";
    cout<<perimeter<<"\n";
    return 0;
}