//created by sun microsystems.

import java.io.File;
import javax.swing.ImageIcon;

/* Utils.java is a 1.4 example used by FileChooserDemo2.java. */
public class Utils
{
	public final static String cat = "cat";
	public final static String cgl = "cgl";
	public final static String fun = "fun";
	public final static String fgl = "fgl";

	/*
	 * Get the extension of a file.
	 */
	public static String getExtension(File f)
	{
		String ext = null;
		String s = f.getName();
		int i = s.lastIndexOf('.');

		if (i > 0 &&  i < s.length() - 1)
		{
			ext = s.substring(i+1).toLowerCase();
		}
		return ext;
	}

	/** Returns an ImageIcon, or null if the path was invalid. */
	protected static ImageIcon createImageIcon(String path)
	{
		java.net.URL imgURL = Utils.class.getResource(path);
		if (imgURL != null)
		{
			return new ImageIcon(imgURL);
		} else
		{
			System.err.println("Couldn't find file: " + path);
			return null;
		}
	}
}