Count files inside a folder or drive

File file = new File("u://");
int count = countFilesInDirectory(file);ilesInDirectory(file); 

System.out.println("count" + count);


public static int countFilesInDirectory(File directory) {
      int count = 0;
      for (File file : directory.listFiles()) {
          if (file.isFile()) {
              count++;
          }
          if (file.isDirectory()) {
              count += countFilesInDirectory(file);
          }
      }
      return count;
  }