这个程序没有错误，但没有出来结果

package zx;
import *;
public class Sz1 {
   
   
        public static void main(String[] args){
            try{
                FileWriter fr=new FileWriter("11101161信息.txt");
                BufferedWriter bw=new BufferedWriter(fr);
                String s="2011网络工程(物联网) 11101161 Rose";
                bw.write(s,0,s.length());
                bw.close();
            }catch(IOException e){
                System.out.println(e.getMessage());
            }
        }
}