JAVA实现求五个数阶乘之和 小实例

 代码清单

 

package cn.temp; import java.util.ArrayList; import java.util.List; import java.util.Scanner; public class Test { public static int[] list; public Test(){ this.list = new int[5]; } /** * @param args */ public static void main(String[] args) { Test test = new Test(); test.InputNum(); } /** * 用户从控制台输入值 */ public void InputNum(){ Scanner input = new Scanner(System.in); int num=0; try { for (int i = 0; i < 5; i++) { System.out.println("请输入第" + i + "个数"); num=input.nextInt(); if(num>0) this.list[i]=num; else throw new Exception(); } Sum(); } catch (Exception e) { e.printStackTrace(); System.out.println("亲!你输入有错误吧...."); } } /** * 算法实现方法 */ public static void Sum(){ int sum=1; int result=0; for(int i=0;i<5;i++){ sum=sum*list[i]; result=sum+result; } System.out.println("你输入的五个数的阶乘之和为:"+result); } }