opg 4

import java.io.File;

public class ReadFolder {
	static int counter = 0;

	public static void scanDir(String path) {
		System.out.println(" " + path);

		File file = new File(path);
		String[] names = file.list();

		for (String name : names) {
			counter++;
			String newPath = path + "/" + name;
			if ((new File(newPath)).isDirectory()) {
				scanDir(newPath);
			}
		}
	}

	public static void main(String[] args) {
		try {
			ReadFolder.scanDir("C:\\Users\\Allan Birch\\Documents");
		} catch (NullPointerException e) {
			e.getMessage();
		}
		System.out.println();
		System.out.println("There are " + counter + " subfolders");
	}
}