import java.io.*;
public class FileTest{
  public static void main(String[] args){
  try{
     File data = new File("grades.txt");
     if (data.exists()){
        BufferedReader in = new BufferedReader(
                            new FileReader(data));
        String line = in.readLine();
        while(line != null){
           System.out.println(line);
           line = in.readLine();
        }
        in.close();
     }
     else
        System.out.println("The grades.txt file doesn't exist");
  }
  catch(IOException e){
     System.out.println("An IOException has occurred.");
  }
  }
}