Go语言视频零基础入门到精通

thinkinjava

计算目录及文件个数，大小。

import java.io.File;
import java.text.DecimalFormat;
import java.text.NumberFormat;
public class GetFolderSize {
int totalFolder = 0;
int totalFile = 0;
public static void main(String args[]) {
  String folder = "c:\\java";
  try {
   GetFolderSize size = new GetFolderSize();
   long fileSizeByte = size.getFileSize(new File(folder));
   System.out.println("Folder Size: " + fileSizeByte + " Bytes");
   System.out.println("Total Number of Folders: "+ size.getTotalFolder());
   System.out.println("Total Number of Files: " + size.getTotalFile());
  } catch (Exception e) {}
}
public long getFileSize(File folder) {
  totalFolder++;
  System.out.println("Folder: " + folder.getName());
  long foldersize = 0;
  File[] filelist = folder.listFiles();
  for (int i = 0; i < filelist.length; i++) {
   if (filelist.isDirectory()) {
    foldersize += getFileSize(filelist);
   } else {
    totalFile++;
   foldersize += filelist.length();
   }
  }
  return foldersize;
}
public int getTotalFolder() {
   return totalFolder;
}
public int getTotalFile() {
  return totalFile;
}
}