내가 exam_05 랑 exam_06이랑 2개를쓰고있는데

import java.io.*;
public class Exam_05   {
        public static String age = \"\";
        public static String name = \"\";
        
        public static void main(String [] ar) throws IOException{
                BufferedReader in =
                        new BufferedReader(new InputStreamReader(System.in));
                
                
                System.out.print(\"이름=\");
                name = in.readLine();
                
                Exam_06.write_txt(name);                                                      //<<<<<<<<<<<<<<<<<<<<<<<<<<<<<이줄이애러거든
                
                System.out.print(\"나이=\");
                age =  in.readLine();
                
                System.out.println();
                System.out.println(\"이름:\"+name         );
                System.out.println(\"나이:\" + age +\"세\");
                
                
        }

}




import java.io.*;
public class Exam_06 {
        public static void write_txt(String s)
        {
                 try {
                      ////////////////////////////////////////////////////////////////
                      BufferedWriter out = new BufferedWriter(new FileWriter(\"out.txt\"));

                      out.write(s); out.newLine();
                      out.write(s); out.newLine();

                      out.close();
                      ////////////////////////////////////////////////////////////////
                    } catch (IOException e) {
                        System.err.println(e); // 에러가 있다면 메시지 출력
                        System.exit(1);
                    }
                
        }
}












왜에러가나는거야? ㅠ