I'd like to the euler number e for a number n inputed by the user, there's something wrong with the logical part, I can't seem to get the correct answer of 2.5 when inputting 2, instead i get 2. In fact I always get an answer of 2 no matter what the input is. The problem is in the euler method because the factorial prints the correct answer. here is the code.
import java.util.*;
public class pract5ex3 {
public static int fact (int n){
if (n==0 || n==1){
return 1;
}
else {
return n*fact(n-1);
}
}
public static double constantRec(int n){
if (n == 0){
return 1;
}
else {
return 1/fact(n)+constantRec(n-1);
}
}
public static void main (String []args) {
Scanner s= new Scanner (System.in);
System.out.println("enter number");
int n =s.nextInt();
int factorial = pract5ex3.fact(n);
double euler = pract5ex3.constantRec(n);
System.out.println(factorial);
System.out.println(euler);
}
}
