Delete a directory in Java

//www.j  av a  2  s .  c o m
import java.io.File;
import java.io.IOException;

public class Main {
  /**
   * Deletes a directory.
   *
   * @param dir the file for the directory to delete
   * @return true if susscess
   */
  public static boolean deleteDir(File dir) {
    if (dir.isDirectory()) {
      for (File file : dir.listFiles()) {
        if (file.isDirectory()) {
          try {
            if (file.getCanonicalFile().getParentFile().equals(dir.getCanonicalFile())) {
              deleteDir(file);
              if (file.exists() && !file.delete()) {
                System.out.println("Can't delete: " + file);
              }
            } else {
              System.out.println("Warning: " + file + " may be a symlink.  Ignoring.");
            }
          } catch (IOException e) {
            System.out.println("Warning: Cannot determine canonical file for " + file + " - ignoring.");
          }
        } else {
          if (file.exists() && !file.delete()) {
            System.out.println("Can't delete: " + file);
          }
        }
      }
      return dir.delete();
    }
    return false;
  }
}