Chapter 2 Question 2.16, Introduction to Java Programming, Tenth Edition Y. Daniel LiangY.

From: freepik.com

(Geometry: area of a hexagon) Write a program that prompts the user to enter the side of a hexagon and displays its area. The formula for computing the area of a hexagon is 

Area = 3√3/2 s^2 , 

where s is the length of a side.

Solution

import java.util.Scanner;

public class Exercise_02_16 {

    public static void main(String[] args) {

        Scanner input = new Scanner(System.in);

        // Prompt the user to enter the side of a hexagon

        System.out.print("Enter the side: ");

        double side = input.nextDouble();

        // Compute the area of the hexagon

        double area = ((3 * Math.pow(3, 0.5)) / 2) * Math.pow(side, 2);

        // Display result

        System.out.println("The area of the hexagon is " + area);

    }

}