dir.java

java编程开发技巧与实例的编译测试通过的所有例程

import java.io.*;
import java.util.*;

public class Dir
{
	private static void showDirInfo(File list[])
	{
		Arrays.sort(list, new FileNameSorter());
		for (int i = 0; i < list.length; i ++)
		{
			if (list[i].isDirectory())
				System.out.println("DIRECTORY");
			else
				System.out.print(list[i].length() + " bytes");
			System.out.println("\t" + list[i]);
		}
	}
	public static void main(String args[])
	{
		File path	=	new File(System.getProperty("user.dir"));
		if (args.length > 0)
			path = new File(args[0]);
		if (path.exists() && path.isDirectory())
			showDirInfo(path.listFiles());
		else
			System.out.println("Path not found or not directory");
	}
}