Recursively delete a file and all its contents : Delete « File « Java Tutorial

import java.io.File;

public class Utils {
  /**
   * Recursively delete a file and all its contents.
   * 
   * @param root
   *          the root to delete
   */
  public static void recursiveDelete(File root) {
    if (root == null) {
      return;
    }

    if (root.isDirectory()) {
      File[] files = root.listFiles();
      if (files != null) {
        for (int i = 0; i < files.length; i++) {
          File file = files[i];
          if (file.isDirectory()) {
            recursiveDelete(file);
          } else {
            file.delete();
          }
        }
      }
    }
    root.delete();
  }
}

11.79.Delete
	11.79.1.	Deletes the diretory and any files and directories in it recursively.
	11.79.2.	Delete the file or non-empty directory at the supplied path
	11.79.3.	Delete all files under this file and including this file
	11.79.4.	Deletes a directory.
	11.79.5.	Empty and delete a folder (and subfolders).
	11.79.6.	Recursive directory deletion
	11.79.7.	Recursively delete a file and all its contents
	11.79.8.	Recursivly delete directory
	11.79.9.	Remove file or directory
	11.79.10.	Remove a directory and all of its contents.
	11.79.11.	Deletes all files and subdirectories