java中如何删除本地文件夹以及文件

import java.io.File;
import java.io.IOException;

public class DeleteFile {
public static void main(String[] args) {
File f=new File("路径");
try {
System.out.println(f.getCanonicalPath());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
System.out.println("Sorry,can't get canonical path");
}
recurDelete(f);
//    System.out.println(f.list());
}
public static void recurDelete(File f){
try{
for(File fi:f.listFiles()){
if(fi.isDirectory()){
recurDelete(fi);
}
else{
fi.delete();
}
}
f.delete();
}
catch(NullPointerException n){
System.out.println("Sorry,No such file");
}

}
}