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SearchFile.java
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160 lines (145 loc) · 3.12 KB
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/**
* @function: 查找文件夹中包含的文件
* @parameter: 手动输入目标文件夹
* @return: 输出所有文件
* @author: ywang
* @date: 2015-10-12
*
*/
package Test;
import java.io.*;
import java.util.Scanner;
public class SearchFile
{
static int level = 0;
/************************************** 版本1
public static void fileSearch(File file)
{
System.out.println(file.getName() + "/");
level++;
for (int j = 0; j < level; j++)
{
System.out.print("\t");
}
File[] listfiles = file.listFiles();
if (listfiles.length == 0)
{
System.out.println("There is no files!");
return ;
}
for (int i = 0; i < listfiles.length; i++)
{
if (listfiles[i].isDirectory())
{
fileSearch(listfiles[i]);
level--;
}
else
{
if (i != 0)
{
for (int j = 0; j < level; j++)
{
System.out.print("\t");
}
}
System.out.println(listfiles[i].getName());
}
}
}
格式位置，非常巧妙，level++ --的位置等
*******************************************************************/
/***************************** 版本2 **********************************
public static void fileSearch(File file)
{
for (int j = 0; j < level; j++)
{
System.out.print("\t");
}
System.out.println(file.getName() + "/");
level++;
for (int j = 0; j < level; j++)
{
System.out.print("\t");
}
File[] listfiles = file.listFiles();
if (listfiles.length == 0)
{
System.out.println("There is no files!");
return ;
}
for (int i = 0; i < listfiles.length; i++)
{
if (listfiles[i].isDirectory())
{
fileSearch(listfiles[i]);
level--;
}
else
{
System.out.println(listfiles[i].getName());
if (i != listfiles.length - 1)
{
for (int j = 0; j < level; j++)
{
System.out.print("\t");
}
}
}
}
}
**************************************************************************/
/***************************** 版本3 **************************************/
public static void fileSearch(File file)
{
System.out.println(file.getName() + "/");
level++;
File[] listfiles = file.listFiles();
if (listfiles.length == 0)
{
System.out.println("There is no files!");
return ;
}
for (int i = 0; i < listfiles.length; i++) // 终于解决了，将目录和文件完全分开，单独谈论即可！简单粗暴！！！！！
{
if (listfiles[i].isDirectory())
{
for (int j = 0; j < level; j++)
{
System.out.print("\t");
}
fileSearch(listfiles[i]);
level--;
}
else
{
for (int j = 0; j < level; j++)
{
System.out.print("\t");
}
System.out.println(listfiles[i].getName());
}
}
}
public static void main(String[] args)
{
Scanner input = new Scanner(System.in);
System.out.print("Please input the directory name: ");
String filename = input.next(); // "./": Exercise/ 文件夹 "../": workspace/ 文件夹
File file = new File(filename);
if (! file.exists())
{
System.out.println(filename + " does not exist!");
System.exit(0);
}
if (file.isDirectory())
{
fileSearch(file);
}
else
{
System.out.println(file.getName() + " is not a directory!");
}
input.close();
}
}