Loading and updating BufferedImage component with KeyListener

Question

I'm new to the concept of BufferedImage, and have very little knowledge other than that it can allow me to animate character sprites for the pac-man replication I'm making. I've followed tutorials to get to the point I am at, but when trying to update the player's position with either a KeyListener or a rudimentary "x_coordinate++;", nothing seems to happen visually. I have noticed that the construction of my classes are a bit off, and may cause nothing to happen, but in the cases where I have managed a change in values from the console, the BufferedImage is persistent at defying my wishes.

GraphicsPanel.java

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseEvent;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;
import java.awt.event.MouseListener;

import javax.swing.ImageIcon;
import javax.swing.JPanel;
import javax.swing.Timer;

public class GraphicsPanel extends JPanel implements KeyListener, MouseListener{
private int background_x;
private BufferedImage spriteSheet = null;
private BufferedImage player;
private Player p;
private Timer t;

public void init() {
    BufferedImageLoader loader =new BufferedImageLoader();
    try {
        spriteSheet = loader.loadImage("images/pacman.png");
    }catch(IOException e) {
        e.printStackTrace();
    }   
    this.addKeyListener(this);
    p = new Player(214,315,this);
}



public GraphicsPanel(){


    setPreferredSize(new Dimension(448,596));


    t = new Timer(70, new ClockListener(this));  

    this.setFocusable(true);                     

}
public void paintComponent(Graphics g)
{

    Graphics2D g2 = (Graphics2D) g;
    g2.setColor(Color.black);
    g2.fillRect(0, 0, 448, 596);

    ClassLoader cldr = this.getClass().getClassLoader();    
    String imagePath = "images/background.png";              
    URL imageURL = cldr.getResource(imagePath);             
    ImageIcon image = new ImageIcon(imageURL);              
    image.paintIcon(this, g2, 0, 50);
    init();
    t.start();
    p.draw(g2,this);
}



public void clock() {

    System.out.println(p.getX()+ " " + p.getY());

    repaint();
} 

public BufferedImage getSpriteSheet() {
    return spriteSheet;
}


@Override
public void keyPressed(KeyEvent e) {
    //simple movement to help to ensure the most clarity with errors.
    if(e.getKeyCode()==KeyEvent.VK_RIGHT)
        p.setX(p.getX()+1);
    if(e.getKeyCode()==KeyEvent.VK_LEFT)
        p.setX(p.getX()-1);
    if(e.getKeyCode()==KeyEvent.VK_UP)
        p.setY(p.getY()+1);
    if(e.getKeyCode()==KeyEvent.VK_DOWN)
        p.setY(p.getY()-1);

    repaint();
}
@Override
public void keyReleased(KeyEvent e) {
}
@Override
public void keyTyped(KeyEvent e) {
    // TODO Auto-generated method stub
}
@Override
public void mouseClicked(MouseEvent e) {
    // TODO Auto-generated method stub
}
@Override
public void mousePressed(MouseEvent e) {
    // TODO Auto-generated method stub
}
@Override
public void mouseReleased(MouseEvent e) {
    // TODO Auto-generated method stub
}
@Override
public void mouseEntered(MouseEvent e) {
    // TODO Auto-generated method stub
}
@Override
public void mouseExited(MouseEvent e) {
    // TODO Auto-generated method stub
}
}

Player.java

import java.awt.Component;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;
import javax.swing.ImageIcon;

public class Player {


private int x_coordinate;           
private int y_coordinate;   
private int xdirection;
private int ydirection;
private BufferedImage player;
private BufferedImage spriteSheet = null;




public Player(int x_coordinate, int y_coordinate,GraphicsPanel game){

    this.x_coordinate = x_coordinate;                                                       
    this.y_coordinate = y_coordinate;  


    Spritesheet ss = new Spritesheet(game.getSpriteSheet());
    player = ss.grabImage(1,1, 32, 32);
}





public void tick() {
    //to be used for smooth movement and animation
}



public void draw(Graphics g, Component c) {
    g.drawImage(player, x_coordinate, y_coordinate, null);
}

public int getX() {
    return x_coordinate;
}

public void setX(int x_coordinate) {
    this.x_coordinate = x_coordinate;
}

public int getY() {
    return y_coordinate;
}

public void setY(int y_coordinate) {
    this.y_coordinate = y_coordinate;
}   
}

BufferedImageLoader.java

 import java.awt.image.BufferedImage;
 import java.io.IOException;

 import javax.imageio.ImageIO;
 public class BufferedImageLoader {

private BufferedImage image;

public BufferedImage loadImage(String path) throws IOException {

    image = ImageIO.read(getClass().getResource(path));
    return image;
}
}

SpriteSheet.java

import java.awt.image.BufferedImage;

public class Spritesheet {

private BufferedImage image;

public Spritesheet(BufferedImage image) {
     this.image =image;


}

public BufferedImage grabImage(int col, int row, int width, int height) {
    BufferedImage img = image.getSubimage((col*32)-32, (row*32)-32, width, height);
     return img;
}
}

ClockListener.java

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class ClockListener implements ActionListener {

GraphicsPanel f;

ClockListener(GraphicsPanel c)
{
    f = c;
}

public void actionPerformed(ActionEvent e) {
        f.clock();
}

}

GraphicsMain.java

import javax.swing.JFrame;
import javax.swing.JPanel;


public class GraphicsMain extends JFrame{

public static void main(String[] args) {
    GraphicsMain window = new GraphicsMain();
    JPanel p = new JPanel();
    p.add(new GraphicsPanel());  //  add a class that extends JPanel
    window.setTitle("PAC-MAN");
    window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    window.setContentPane(p);
    window.pack();
    window.setLocationRelativeTo(null);
    window.setVisible(true);

}

}