Keyboard input

[plenderj]

Howdy.

Im learning Java at the moment, and I'm making a maze game, in which, imaginatively enough, the user has to try and solve mazes.
Anyway, I'm trying to do the userinput part, all I really need is up down left and right, but I'm not sure how to get keyboard events.
I also need the app to get input from the map.txt file, which contains vertices in the maze.
The file is in the format :
MazeName :My maze
Vertices :1
Vertex :4000,3200,2000,1000
MazeName :My maze2
Vertices :2
Vertex :1600,1600,1600,3000
Vertex :2400,1600,2400,3000

This is the code im using :

import java.awt.*;
import java.awt.event.*;
import java.io.*;
class Maze extends Frame {
	static int NumVertices = 128;
	static myVertex[] Vertex = new myVertex[129];	
	static Frame f = new Maze();
	public static void main(String[] args) {		
		f.addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent e) {
				System.exit(0);
			}
		});

		f.addKeyListener(new KeyAdapter() {
		    private void processKeyEvent(KeyEvent e) { 
				f.setTitle("testing");
			}
		});            

		
		f.setSize(300,300);
		f.setResizable(false);
		f.setBackground(Color.white);
		f.setVisible(true);
		//f.setTitle("Maze");
		
						
	}
	public void paint(Graphics g) {
		g.setColor(Color.red);	
		for (int i = 0 ; i <= NumVertices ; i++) {		
			g.drawLine(Vertex[i].x1, Vertex[i].y1, Vertex[i].x2, Vertex[i].y2);
		}
	}
}

class myVertex {
	int x1;
	int y1;
	int x2;
	int y2;
}

Any help is much oblidged.
Thanks,
jamie.