Write a program in Java to find the sum of the given series:

S = x/2 + x/5 + x/8 + x/11 + …… + x/20

import java.util.Scanner;

public class KboatSeries
{
    public static void main(String args[]) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter x: ");
        int x = in.nextInt();
        double sum = 0.0;
        for (int i = 2; i <= 20; i = i+3)
            sum += (double)x / i;
        System.out.println("Sum = " + sum);
    }
}