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

(1*2) + (2*3) + …… + (19*20)

public class KboatSeries
{
    public static void main(String args[]) {
        int sum = 0;
        for (int i = 1; i <= 19; i++)
            sum += i * (i + 1);
        System.out.println("Sum = " + sum);
    }
}