Question

write a program in java sum of factorials​

Answer 1

Find sum of the factorials using java program

import java.util.Scanner;

public class SumOfFactorial

{

public static void main(String[] args)

{

// create scanner class object.

Scanner sc = new Scanner(System.in);

// enter the number.

System.out.print("Enter number : ");

int n = sc.nextInt();

int total=0;

int i=1;

// calculate factorial here.

while(i <= n)

{

int factorial=1;

int j=1;

while(j <= i)

{

factorial=factorial*j;

j = j+1;

}

// calculate sum of factorial of the number.

total = total + factorial;

i=i+1;

}

// print the result here.

System.out.println("Sum : " + total);

}

}

Output

First run:

Enter number : 3

Sum : 9

Second run:

Enter number : 5

Sum : 153

hope this helps you

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