Posted on 2008-07-10 16:47
什么捷 阅读(29)
评论(0) 编辑 收藏
这里首先是文件的生成:
1
2 import java.io.*;
3
4 public class Demo
5 {
6 public static void main( String[] args)
7 {
8 File dirFile;
9 File tempFile;
10 boolean bFile;
11 String sFileName;
12
13 bFile = false;
14
15 try
16 {
17 dirFile = new File("E:\\test");
18 bFile = dirFile.exists();
19
20 if( bFile == true )
21 {
22 System.out.println("The folder exists.");
23 }
24 else
25 {
26 System.out.println("The folder do not exist,now trying to create a one
");
27 bFile = dirFile.mkdir();
28 if( bFile == true )
29 {
30 System.out.println("Create successfully!");
31 }
32 else
33 {
34 System.out.println("Disable to make the folder,please check the disk is full or not.");
35 System.exit(1);
36 }
37 }
38
39 System.out.println("Now we put files in to the folder");
40
41 for(int i=0; i<5; i++)
42 {
43 sFileName = new String("E:\\test\\");
44 sFileName += String.valueOf(i);
45 tempFile = new File(sFileName);
46 bFile = tempFile.createNewFile();
47 }
48 }catch(IOException e)
49 {
50 // Exception hadler
51 }
52
53 if( bFile == true )
54 System.out.println("Successfully put files in to the folder!");
55 else
56 System.out.println("Sorry sir,i don't finish the job!");
57 }
58 }
59
java删除文件夹时该文件夹必须是空的，写了以下2个方法，运用递归方法来删除欲删除的文件夹下的所有子文件夹以及文件。
在程序中需要删除的地方调用下面任一方法即可实现。
java 代码
1 public void removeFile(String path) {
2 this.removeFile(new File(path));
3 }
4
5 public void removeFile(File path){
6 System.out.println("removing file " + path.getPath());
7 if (path.isDirectory()){
8 File[] child = path.listFiles();
9 if (child != null && child.length != 0){
10 for (int i = 0; i < child.length; i++){
11 removeFile(child[i]);
12 child[i].delete();
13 }
14 }
15 }
16 path.delete();
17 }