/* 好东西也不能索取无度 */ import java.io.*; public class Solution { public static void main(String[] args) throws Exception { //在此编写你的代码 BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); String str = reader.readLine(); String str1 = reader.readLine(); int num = Integer.parseInt(str1); int a = 1; while (a > 0){ System.out.println(str); a++; } } } any one can tell me how to fix this problem? I can't figured it out by myself : (