标签:package number public result import
/*【程序8】 题目:求s=a+aa+aaa+aaaa+aa...a的值,其中a是一个数字。例如2+22+222+2222+22222(此时共有5个数相加),几个数相加有键盘控制。 */ package test; import java.util.Scanner; public class test { public static int sum(int number, int input) { int result = 0; int tem = number; for(int i = 0; i < input; i++) { for(int j = i; j > 0; j--) { tem = tem + (int) Math.pow(10, j)*number; } result += tem; tem = number; } return result; } public static void main(String[] args) { long a = System.currentTimeMillis(); int number = 2; Scanner s = new Scanner(System.in); System.out.println("Please input the number count:"); int input = s.nextInt(); int sum = sum(number, input); System.out.println("sum is "+sum); System.out.println(System.currentTimeMillis() - a); } }
标签:package number public result import
原文地址:http://gomic.blog.51cto.com/8689134/1412611