| package com.sxt; | |
| public class text { | |
| public static void main(String[] args) { | |
| int n = 20; | |
| double sum = 1.0; | |
| double term; | |
| double factorial = 1; | |
| for (int i = 1; i <= n; i++) { | |
| factorial *= i; | |
| term = 1.0 / factorial; | |
| sum += term; | |
| if (term < 0.0001) { | |
| break; | |
| } | |
| } | |
| System.out.printf("%.4f", sum, args); | |
| } | |
| } | |