[FIXED] How to see if a Reader is at EOF?

Issue

My code needs to read in all of a file. Currently I'm using the following code:

BufferedReader r = new BufferedReader(new FileReader(myFile));
while (r.ready()) {
  String s = r.readLine();
  // do something with s
}
r.close();

If the file is currently empty, though, then s is null, which is no good. Is there any Reader that has an atEOF() method or equivalent?

Solution

A standard pattern for what you are trying to do is:

BufferedReader r = new BufferedReader(new FileReader(myFile));
String s = r.readLine();
while (s != null) {
    // do something with s
    s = r.readLine();
}
r.close();

Answered By - Synesso

Answer Checked By - Mary Flores (PHPFixing Volunteer)