java如何删除非空文件夹

package com.xxx.oop;
import java.io.File;
public class Hello {
 
    public static void deleteDir(String path){
        File file = new File(path);
        File[] list = file.listFiles();
        for(File f:list){
            if(f.isDirectory()){
                deleteDir(f.getPath());
            }else{
                f.delete();
            }
        }
        boolean deleted = file.delete();
        System.out.println(deleted);
    }
 
    public static void main(String[] args) {
        String path = "C:\\Users\\buejee\\Desktop\\test";
        deleteDir(path);
    }
}

private static void delDirectory(File f) {
        //判断是否目录
        if (f.isDirectory()) {
            //是目录,判断是否有子文件
            if (f.listFiles().length>0) {
                for (File file : f.listFiles()) {
                    //有子文件再次调用本方法
                    delDirectory(file);
                }
            }else {
                //无子文件直接删除
                f.delete();
            }
        }
        //删除空目录 或 文件
        f.delete();
    }

public static void main(String[] args) {
        File f = new File("C:\\Users\\jacktu\\Desktop\\test");
        delDirectory(f);
    }