How to iterate contents of a directory?

Question

How do I iterate all the files and subdirectories of a directory, whose depth I don't know?

Answer 1

A rough idea, you could do it recursively, but this is easier:
import java.util.Stack;
import java.util.Arrays;
public
class Pops
  public
  static
  void main(String[] args)
    File file = new File(args[0]);
    Stack stack = new Stack();
    Stack files = new Stack();
    stack.add(file);
    stack.addAll(Arrays.asList(file.listFiles()));
    while (!stack.empty())
      file = (File)stack.pop();
      if (file.isDirectory()) { stack.addAll(Arrays.asList(file.listFiles())); }      files.push(file);
    while (!files.empty())
      System.out.println(files.pop());