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Java Series Programs

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

S = 1! + 2! + 3! + …. + n!

Java

Java Nested for Loops

ICSE

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Answer

import java.util.Scanner;

public class KboatSeries
{
    public static void main(String args[]) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter n: ");
        int n = in.nextInt();
        long sum = 0;
        for (int i = 1; i <= n; i++) {
            long f = 1;
            for (int j = 1; j <= i; j++) {
                f *= j;
            }
            sum += f;
        }
        
        System.out.println("Sum = " + sum);
    }
}

Output

BlueJ output of Write a program in Java to find the sum of the given series: 1! + 2! + 3! + …. + n!

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