Java Program to Find Sum of the Series 1/1! + 2/2! + 3/3! + ……1/N!

import java.util.Scanner;

public class Sum_Series
{
public static void main(String[] args)
{
double sum=0;

int n;

System.out.println("1/1! + 2/2! + 3/3! + ..N/N!");
Scanner s=new Scanner(System.in);

System.out.print("Enter the no. of terms in series:");
n = s.nextInt();

Sum_Series obj = new Sum_Series();
for(int i = 1; i <= n; i++)

{
  sum = sum + (double)i / (obj.fact(i));

}
System.out.println("Sum of series:"+sum);

}
int fact(int x)

{
int mul = 1;

while(x > 0)
{
            mul = mul * x;
            x--;
}
return mul;
}
}


OutPut:
1/1! + 2/2! + 3/3! + ..N/N!
Enter the no. of terms in series:5
Sum of series:2.708333333333333
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