java获取文件夹下文件的数目

import java.io.*;

....
....

String path = "E:\\music\\音乐";
int fileCount = 0;
int folderCount = 0; 
File d = new File(path);
File list[] = d.listFiles();
for(int i = 0; i < list.length; i++){
    if(list[i].isFile()){
        fileCount++;
    }else{
        folderCount++;
    }
}

System.out.println("文件个数："+fileCount);
System.out.println("文件夹数："+folderCount);