Java Program to Find Area of Hexagon

import java.io.*;
class Main
{
    public static void main(String [] args)
    {
        //declared side length value of hexagon 
        double a = 1;
        //find area of hexagon using formula
        double ar  = (3*(Math.sqrt(3)/2))*a*a;
        System.out.println("The area of hexagon is: " + ar);
    }
}

Output:

The area of hexagon is: 2.598076211353316