Some simplifications

Revised input routine:

public void printFileContents() throws FileNotFoundException, IOException {
  String filename = JOptionPane.showInputDialog("Enter filename");
  BufferedReader input = new BufferedReader(new FileReader(filename));
  String line = input.readLine();
  while (line != null) {
    System.out.println(line);
    line = input.readLine();
  }
  input.close();
}

File objects represent abstract path names independently of the operating system
```
File f = new File("/home/ferrer/jett/io.html");
```
Useful methods include canRead(), canWrite(), exists(), delete(), and list() (returns a String array of filenames in the directory corresponding to the File object)
A File object may be used in place of a String filename with FileReader and FileWriter
FileManager.java

(next)