java下文件遍历，与删除

package cn.stat.p1.file;

import java.io.File;

public class newfilelist {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
File f1=new File("E:\\BaiduYunDownload");
nlist(f1,0);

}
public static void nlist(File f1,int len)
{
File[] name=f1.listFiles();
for(int x = 0;x<name.length;x++)
{
if(name[x].isDirectory())
{
System.out.print("|-");
for(int y=0;y<len;y++)
{
System.out.print("-");
}
System.out.println(name[x].getAbsolutePath());

nlist(name[x],len+1);
}else
{
System.out.print("|-");
for(int y=0;y<len;y++)
{
System.out.print("-");
}
System.out.println(name[x].getAbsolutePath());
}
}
}

}

package cn.stat.p1.file;

import java.io.File;

public class filedel {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
File f1=new File("E:\\s2");
delfile(f1,0);
}

private static void delfile(File f1, int len) {
// TODO Auto-generated method stub
File[] filename=f1.listFiles();
for(int x=0;x<filename.length;x++)
{
if(filename[x].isDirectory())
{
delfile(filename[x], len+1);
System.out.println(filename[x]+"删除："+filename[x].delete());
}
else
{
System.out.println(filename[x]+"删除："+filename[x].delete());
}
}
}

}