import java.io.*;

public class TestWriteFile{
 public static void main (String[] args) {
  File file = new File("tt.txt");
  try {
   InputStreamReader  is = new InputStreamReader(System.in);
   BufferedReader in=new BufferedReader(is);
   PrintWriter out  = new PrintWriter(new FileWriter(file));
   String s = in.readLine();
   while (!s.equals("")) {// 从键盘逐行读入数据输出到文件
    out.println(s);
    s = in.readLine();
   }
   in.close();   // 关闭BufferedReader输入流.      
   out.close();  // 关闭连接文件的PrintWriter输出流.
  }catch (IOException e) {
   e.printStackTrace(); 
  }
  }
}