import java.io.File;


public class CountFile {
	
		static int NumF = 0;

	public static int CountFiles(String DuongDan){
		
		File TepTin = new File(DuongDan);
		if (TepTin.isFile()){
			NumF++;
		} 
		else{			
		File[] NoiDung = TepTin.listFiles();
		for (int i = 0; i < NoiDung.length; i++) {
			CountFiles(NoiDung[i].getAbsolutePath());		
		}
	}
		return NumF;
}
	public static void main(String[] args) {
		String DuongDan = "D:\\Dir";
		System.out.println(CountFiles(DuongDan) + " Tệp tin(s)");
	}
}