Applet: A user controlled Image - Stuck!

Newbie & Debugging Questions
#1

I need to have the user control the image via WASD keys to move around the screen. I have gotten this to work with a paint generated “rect” but can’t seem to get it to work with a gif image. I am still a beginner and am not the best coder.

NOTE: I have the gif saved onto my desktop. Will that affect my code?

Here’s my code:

package maze;


import java.applet.*;
import java.awt.event.*;
import java.awt.*;
import javax.swing.*;


public class Maze extends JApplet implements KeyListener
{
   int x;
   int y;

   public void init()
   {
       
       
      setBackground(Color.black);
      x = 20;
      y = 20;
      addKeyListener(this);    
      
       Image img;
       img = getImage(getCodeBase(), "soldier.gif");
       setVisible(true);
   }

   public void keyPressed(KeyEvent e) {}
  
   public void keyReleased(KeyEvent e) {}
   
   public void keyTyped(KeyEvent e)
   {
      char c = e.getKeyChar();
      
      if (c == 'w')
      {
      	y -= 20;
      }
      else if (c == 's')
      {
      	y += 20;
      }
      else if (c == 'a')
      {
      	x -= 20;
      }
      else if (c == 'd')
      {
      	x += 20;
      }
      
      if (c != KeyEvent.CHAR_UNDEFINED)
      {
         repaint();
         e.consume();
      }
   }

   public void paint(Graphics g) 
   {
   	  requestFocus();	 // applet's initial focus

         g.drawImage(img,50,50, this); 
          
   	  if (!collisionDetection())
   	  {
	      g.setColor(Color.gray);
	      g.drawLine(0, 100, 250, 100);

	     
             
	  }
	  else
	  {
	  	  g.setColor(Color.yellow);
	  	  g.drawString("LOSER", 130, 150);
	  }
   }
   
   public boolean collisionDetection()
   {
   	  if (x < 250 && y < 100 && y + 20 > 100)		// line segment 1
      {
      	return true;
      }
      
      
      return false;
   }

public class DisplayImage extends JApplet 
{
	private Image img;

	public void init() 
	{
		 img = getImage(getDocumentBase(),"soldier.gif");
	}

	public void paint(Graphics g) 
	{
		 g.drawImage(img, 50, 50, this);
	}
}
}

The g.drawImage(img,50,50, this); above the collision if statement is giving me an error for “img”… Saying “Cannot find symbol” - “Symbol: variable img”. Not sure what is the problem. Help much appreciated. Thanks!