mydir.java

java的IO类演示

import java.io.*;

public class MyDir
{
	public static void main(String argv[])
	{
		File f = new File(System.getProperty("user.dir"));
		File files[] = f.listFiles();
		
		for (int i=0; i<files.length; i++)
		{
			if (files[i].isDirectory())
				System.out.print("<Dir>\t");
			else
				System.out.print("\t"+files[i].length());
			System.out.println("\t"+files[i].getName());
		}
	}
}