Exception in thread "AWT-EventQueue-0" and Exception in thread "main"

[darkmoon3009]

Maze.java

import javax.swing.*;
 
public class Maze
{
	public static void main(String[] args)
  {
	 JFrame mainframe = new JFrame();
	 mainframe.add(new Board());
	 mainframe.setTitle("Noah's Game");
	 mainframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	 mainframe.setSize(512,512);
	 mainframe.setLocation(null);
	 mainframe.setVisible(true);
 
  }
 
}

Board.java

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.event.*;
import javax.swing.*;
import java.*;
 
public class Board extends JPanel implements ActionListener {
	private Map m;
	private Timer timer;
	private Player p;
	private String Message = "Winner!";
	private boolean Win = false;
	private Font font = new Font("Serif", Font.BOLD,48);
 
	public Board() {
		timer = new Timer(25, this);
		timer.start();
		m = new Map();
		p = new Player();
		addKeyListener(new Al());
		setFocusable(true);
 
	}
 
	public void actionPerformed(ActionEvent e) {
		repaint();
		if(m.getMap(p.getTileX(), p.getTileY()).equals("f"))
		{
			Message = "Winner!";
			Win = true;
		}
	}
 
	public void paint(Graphics g) {
		super.paint(g);
 
		if(!Win){
		for (int y = 0; y < 16; y++) {
			for (int x = 0; x < 16; x++) {
 
				if (m.getMap(x, y).equals("f")) {
					g.drawImage(m.getFinish(), x * 32, y * 32, null);
				}
				if (m.getMap(x, y).equals("g")) {
					g.drawImage(m.getDirt(), x * 32, y * 32, null);
				}
 
				if (m.getMap(x, y).equals("w")) {
					g.drawImage(m.getWall(), x * 32, y * 32, null);
				}
			}
		}
		g.drawImage(p.getPlayer(), p.getTileX() * 32, p.getTileY() * 32, null);
		}
 
		if(Win){
		g.setColor(Color.MAGENTA);
		g.setFont(font);
		g.drawString(Message, 150, 300);
 
		}
 
 
 
	}
 
	public class Al extends KeyAdapter {
		public void keyPresed(KeyEvent e) {
 
			if (e.getKeyCode() == KeyEvent.VK_W) {
				if (!m.getMap(p.getTileX(), p.getTileY() - 1).equals("w"))
					;
				p.move(0, -1);
 
			}
 
			if (e.getKeyCode() == KeyEvent.VK_A) {
				if (!m.getMap(p.getTileX(), p.getTileY() + 1).equals("w"))
					;
				p.move(0, 1);
 
			}
 
			if (e.getKeyCode() == KeyEvent.VK_S) {
				if (!m.getMap(p.getTileX() - 1, p.getTileY()).equals("w"))
					;
				p.move(-1, 0);
 
			}
 
			if (e.getKeyCode() == KeyEvent.VK_D) {
				if (!m.getMap(p.getTileX() + 1, p.getTileY()).equals("w"))
					;
				p.move(1, 0);
 
			}
 
		}
 
		public void keyReleased(KeyEvent e) {
 
		}
 
		public void keyTyped(KeyEvent e) {
 
		}
 
	}
}

Map.java

private String 	Map[] = new String[16];
	private Image dirt ,
	              wall,
	             finish;
 
	public void map()
	{
		ImageIcon img = new ImageIcon("C://Noah's World//dirt.png");
		dirt = img.getImage();
		img = new ImageIcon("C://Noah's World//wall.png");
		wall = img.getImage();
		img = new ImageIcon("C://Noah's World//finish.png");
		finish = img.getImage();
 
 
		openFile();
		readFile();
		closeFile();
 
	}
 
	public Image getFinish()
	{
		return finish;
	}
	public Image getDirt()
	{
		return dirt;
	}
	public Image getWall()
	{
		return wall;
	}
 
 
	public String getMap(int x, int y)
	{
			String index = Map[y].substring(x,x + 1);
			return index;
	}
 
	public void openFile()
	{
		try{
		m = new Scanner(new File("C://Noah's World//Map.txt"));
		}catch(Exception e)
		{
			System.out.println("error loading map");
		}
	}
 
	public void readFile()
	{
		while(m.hasNext())
		{
			for(int i = 0; i < 14; i++)
			{
				Map[i] = m.next();
			}
		}
	}
 
	public void closeFile()
	{
		m.close();
	}
}

Player.java

import java.awt.Image;
 
import javax.swing.ImageIcon;
 
public class Player {
	private int tileX, tileY;
	private Image player;
 
	public Player() {
 
		ImageIcon img = new ImageIcon("C://Noah's World//Player.png");
		player = img.getImage();
 
		tileX = 1;
		tileY = 1;
	}
 
	public Image getPlayer() {
		return player;
	}
 
	public int getTileX() {
		return tileX;
	}
 
	public int getTileY() {
		return tileY;
	}
 
	public void move(int dx, int dy) {
 
 
		tileX += dx;
		tileY += dy;
	}
}

and here is the error report

Exception in thread "main" java.lang.NullPointerException
	at java.awt.Component.setLocation(Component.java:2112)
	at java.awt.Window.setLocation(Window.java:934)
	at Maze.main(Maze.java:13)
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
	at Map.getMap(Map.java:48)
	at Board.actionPerformed(Board.java:28)
	at javax.swing.Timer.fireActionPerformed(Timer.java:312)
	at javax.swing.Timer$DoPostEvent.run(Timer.java:244)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:701)
	at java.awt.EventQueue.access$000(EventQueue.java:102)
	at java.awt.EventQueue$3.run(EventQueue.java:662)
	at java.awt.EventQueue$3.run(EventQueue.java:660)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:671)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:244)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:163)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:147)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:139)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:97)

[Norm]

Exception in thread "main" java.lang.NullPointerException
at java.awt.Component.setLocation(Component.java:2112 )
at java.awt.Window.setLocation(Window.java:934)
at Maze.main(Maze.java:13)

Look at line 13 in Maze for a null value. The java program expects a non-null value there.
Read the API doc to see if you are using the method correctly or if you should use another method.

[newbie]

mainframe.setLocation(null);
Why? Maybe you mean setLocationRelativeTo(null), which will centre your window. That is your first problem anyhow.
Your "Map" array is of length 16, 0 - 15, how do you ensure that when you request a substring from the array that the index is valid?

As for how you name your variables, I suggest reading over Java naming conventions:
Code Conventions for the Java Programming Language: 9. Naming Conventions