Arraylist only reading first line of file

Question

I am reading a text file using an arraylist. my file has a single value on each line e.g.
2
3
4
5
however this method is only reading only the first line of each file. is it because of this statement:
String s1[] = number.split("\\s");
I would like to change the method so its not expecting numbers in a single line.. but reads each line and adds it to the collection... how can I do that?
here is getData method that gets the file and processes it.
     public static List<Integer> getData(String Filename) {
          List<Integer> array1 = null;
          // BufferedReader for file reverse.txt
          try {
               array1 = new ArrayList<Integer>();
               BufferedReader bf = new BufferedReader(new FileReader(Filename));
               String number = bf.readLine();
               String s1[] = number.split("\\s");
               for (int i = 0; i < s1.length; i++)
                    array1.add(Integer.parseInt(s1));
          } catch (Exception e) {
               e.printStackTrace();
          return array1;

Answer 1

Faissal wrote:
while(bf .ready()){
readline() will return null if the end of the stream has been reached. ([http://java.sun.com/javase/6/docs/api/java/io/BufferedReader.html]). This condition can be used to determine when to stop reading thereby ensuring that all lines have been read.
EDIT:
Here's a code snippet from [Java Developers Almanac|http://www.exampledepot.com/egs/java.io/ReadLinesFromFile.html]: notice how they close() the stream when they're finished with it.