public class Factorial {//求阶乘类
/**
* @param args
* 非递归求n的阶乘函数norecursion
*/
static int norecursion(int n) {
int sum = 1;
for(int i=1;i<=n;i++) {
sum *= i;
}
return sum;
}//norecursion
/**
* @param args
* 递归求n的阶乘函数recursion
*/
static int recursion(int n) {
int result;
if(n ==1)
{
return 1;
}
else
{
result = n*recursion(n-1);
return result;
}
}//recursion
public static void main(String[] args) {
// TODO Auto-generated method stub
int n = 10;
System.out.println("\n 递归求"+n+"阶乘结果为："+recursion(n));
System.out.println(" 非递归求"+n+"阶乘结果为："+norecursion(n));
}//main
}
运行结果：
