New to Java

I was recently trying to use getImage in a class inside of one of my packages. It was giving me a few errors that I didn't understand, I did some googling, found something that said I could only use getCodeBase() in the main top java file. That doesn't make much sense to me, but I tried it and it doesn't throw that particular error now.

so I've imported java.net.* and declared a URL type variable named codeBase in init() I initialized it as codeBase = getCodeBase()

Then, using my new-found referencing powers I slid the codeBase into the call of my other class and then tried to call it as getImage(codeBase, "/tiles/grass1.gif";

The above line produces the error cannot find symbol : method getImage(java.net.URL,java.lang.String)
Which doesn't make any sense to me as here(http://java.sun.com/j2se/1.4.2/docs/api/java/applet/Applet.html) it seems to say that there is a constructor for getImage(URL, String)

I have imported

import java.applet.*;
import java.awt.*;
import java.util.zip.*;
import java.io.*;
import java.net.*;

If the above isn't enough, and you feel like digging through my code, here it is, the main class called RPG(Note: I have trimmed my methods such as paint and update and the mouse and keylistener methods as they have no relevance here):

import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import components.*;

public class Rpg extends Applet implements Runnable, KeyListener, MouseListener
{
	Thread t;
	
	int i, width, height;
	
	URL codeBase;
	
	Font Font15 = new Font("Helvetica", Font.PLAIN, 15);
	
	Image bgImage;
	Graphics bg;
	
	Map map;
	Player player;
	
	public void init()
	{
		
		t = new Thread(this);
		t.start();
		
		addKeyListener(this);
		addMouseListener(this);
		
		i = 0;
		width = getWidth();
		height = getHeight();
		
		bgImage = createImage(width, height);
		bg = bgImage.getGraphics();
		
		setBackground(Color.black);
		
		codeBase = getCodeBase();
		
		player = new Player(50, 50, width, height);
		map = new Map(10, 10, player, codeBase);
		player.MapReference(map);
		
		map.SaveArray(map.fileName, map.tileArray); 
		
	}
}

And my Map class(also trimmed of non-relevance):

package components;

import java.applet.*;
import java.awt.*;
import java.util.zip.*;
import java.io.*;
import java.net.*;

public class Map
{
	
	int xTilesDraw, yTilesDraw, viewX, viewY, x, y, tileX, tileY, i1, i2;
	public String fileName;
	public int[][] tileArray;
	
	Dimension tileSize;
	Point viewOrigin;
	
	Player player;
	
	public Map(int xDraw, int yDraw, Player player, URL codeBase)
	{
		
		xTilesDraw = xDraw;
		yTilesDraw = yDraw;
		
		this.player = player;
		
		viewX = player.x-(xTilesDraw/2);
		viewY = player.y-(yTilesDraw/2);
		
		tileSize = new Dimension(32, 32);
		tileX = xTilesDraw * tileSize.width;
		tileY = yTilesDraw * tileSize.height;
		
		fileName = "test";
		tileArray = new int[9][9];
		
		i1 = 0;
		i2 = 0;

		while(i2 < 10)
		{
			
			if(i2 > 9)
			{
				
				i2 = 0;
				i1++;
					
			}
				
			tileArray[i1][i2] = getImage(codeBase, "tiles/grass1.gif");
			i2++;
				
		}
		
		viewOrigin = new Point(viewX, viewY);
		
	}
}

I suspect that my filepath in the getImage statement may have something to do with it, my filepath is new_folder(where the rpg is located)/components/tiles

Thanks in advance for any help,
Farshief