File类创建文件夹和文件

public class FileDir {/** * @param args * @author Ben Zeph */public static void filedir() {File root = new File("D://root dir");File[] dirs = new File[3];File[] files = new File[3];if (!root.exists())root.mkdir();for (int i = 0; i <= 2; i++) {dirs[i] = new File(root, "dir" + String.valueOf(i));dirs[i].mkdir();files[i] = new File(dirs[i], "file" + String.valueOf(i) + ".txt");try {files[i].createNewFile();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}System.out.println("目录和文件创建完成");}public static void main(String[] args) {// TODO Auto-generated method stubFileDir.filedir();}}