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javalearner

计算目录及文件个数，大小。

1. import java.io.File;
   
2. import java.text.DecimalFormat;
   
3. import java.text.NumberFormat;
   
4. public class GetFolderSize {
   
5. int totalFolder = 0;
   
6. int totalFile = 0;
   
7. public static void main(String args[]) {
   
8.   String folder = "c:\java";
   
9.   try {
   
10.    GetFolderSize size = new GetFolderSize();
    
11.    long fileSizeByte = size.getFileSize(new File(folder));
    
12.    System.out.println("Folder Size: " + fileSizeByte + " Bytes");
    
13.    System.out.println("Total Number of Folders: "+ size.getTotalFolder());
    
14.    System.out.println("Total Number of Files: " + size.getTotalFile());
    
15.   } catch (Exception e) {}
    
16. }
    
17. public long getFileSize(File folder) {
    
18.   totalFolder++;
    
19.   System.out.println("Folder: " + folder.getName());
    
20.   long foldersize = 0;
    
21.   File[] filelist = folder.listFiles();
    
22.   for (int i = 0; i < filelist.length; i++) {
    
23.    if (filelist[i].isDirectory()) {
    
24.     foldersize += getFileSize(filelist[i]);
    
25.    } else {
    
26.     totalFile++;
    
27.    foldersize += filelist[i].length();
    
28.    }
    
29.   }
    
30.   return foldersize;
    
31. }
    
32. public int getTotalFolder() {
    
33.    return totalFolder;
    
34. }
    
35. public int getTotalFile() {
    
36.   return totalFile;
    
37. }
    
38. }

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源码下载：http://file.javaxxz.com/2014/11/5/235845234.zip