how to get end of file(EOF)

Question

I have this code..

            String you = buf.readLine(); 
            Log.d("STRING", ikaw);
            StringTokenizer st = new StringTokenizer(you);
            double lat = Double.parseDouble(st.nextToken());
            double lng = Double.parseDouble(st.nextToken());
            int type = Integer.parseInt(st.nextToken());
            String text = st.nextToken();
            Log.d("File Reading stuff", "success = " + lat);
            Log.d("File Reading stuff", "success = " + lng);
            Log.d("File Reading stuff", "success = " + type);
            Log.d("File Reading stuff", "success = " + text); 

How am i suppose to test if it is already the end of file? I don't know how many lines there are in my file and I need to print all of them. I know i should place my code inside a while loop, but I have no idea how to get the end of file.

Answer 1

I assume the code you have listed is inside a loop, and I assume buf is an instance of BufferedReader. You just need to check for null after you call readLine(). It returns null when you've hit the end of the file.