题目:一个三位数,该三位数与其每位数字的阶乘之和
代码如下:
public class TestSum {public static void main(String[] args) {int a, b, c, i;//for循环找那个满足条件的三位数(i)for (i = 100 ; i <= 999; i++) {a = i % 10;//个位b = i / 10 % 10;//十位c = i / 100;//百位if (i == factorial(a) + factorial(b) + factorial(c)) {System.out.println("其三位数是:" + i);}}}//求阶乘public static int factorial(int num) {int sum = 1;for (int i = 1; i <= num; i++) {sum *= i;}return sum;}}执行结果: