import java.io.File;

 import java.io.IOException;

 public class FileDemo {

     public static void main(String[] args) {

         // 抛除异常IOEcxception

         try {

             fun();

         } catch (IOException e) {

             e.printStackTrace();

         }

     }

     public static void fun() throws IOException {

         // 在d盘创建一个文件夹aaa   madir()创建文件夹目录

         File file = new File("d:\\aaa");

         boolean mkdir = file.mkdir();

         System.out.println(mkdir);

         // 在d盘的文件夹aaa里面创建三个文本   createNewFile()创建文件

         File file1 = new File("d:\\aaa\\aaa.txt");

         boolean newFile1 = file1.createNewFile();

         System.out.println(newFile1);

         File file2 = new File("d:\\aaa\\bbb.txt");

         boolean newFile2 = file2.createNewFile();

         System.out.println(newFile2);

         File file3 = new File("d:\\aaa\\ddd.txt");

         boolean newFile3 = file3.createNewFile();

         System.out.println(newFile3);

         // 多创建了一个ccc.txt文本

         // 删除文件夹内的ccc.txt文本

         File file4 = new File("d:\\aaa\\ccc.txt");

         boolean delete = file4.delete();

         System.out.println(delete);

         // 遍历文件夹aaa内的三个文本   list() 遍历

         File file5 = new File("d:\\aaa");

         String[] list = file5.list();

         for(String i:list){

             System.out.println(i);

         }

     }

 }