Why doesn't my hero show up ingame?

import javax.swing.*;

import java.awt.event.*;
import java.awt.*;
import java.util.ArrayList;


public class Game extends JFrame{

    Image packy;
    Rectangle hero = new Rectangle(0, 0, 50,50);
    int score = 0;
    long startTime, endTime;
    int seconds;
    int x, y;
    boolean hit = false;

    ArrayList<Gobbler> gobs = new ArrayList<Gobbler>();

    public void loadImages(){
        packy = new ImageIcon("packy.png").getImage();
    }

    public static void main(String[] args){
        new Game();

    }

    public Game(){

        setSize(1280,720);
        setTitle("Lawnmower 3000");
        setDefaultCloseOperation(3);
        setVisible(true);
        setResizable(false);

        addKeyListener(new Input());

        addGobbler(5000);

        hero.x = 50;
        hero.y = 50;

        loadImages();

        startTime = System.currentTimeMillis();
        animationLoop();

    }

    public void addGobbler(int amount){

        for(int i = 0; i < amount; i++)
            gobs.add(new Gobbler());

    }

    public void paint(Graphics g){

        if(hit){

            endTime = System.currentTimeMillis();
            seconds = (int) (endTime - startTime) / 1000;

            score += 1337 - seconds;
            startTime = endTime;
            hit = false;

        }

        Image offScreen = createImage(getWidth(), getHeight());
        draw(offScreen.getGraphics());

        g.drawImage(offScreen, 0, 0, null);


    }

    public void draw(Graphics g){

        g.setColor(Color.GRAY);
        g.fillRect(0, 0, 1280, 720);

        g.setColor(Color.GREEN);
        for(int i = 0; i < gobs.size(); i++){
            int x = gobs.get(i).getX();
            int y = gobs.get(i).getY();
            int width = gobs.get(i).rect.width;
            int height = gobs.get(i).rect.height;

            g.fillOval(x,  y,  width,  height);
            gobs.get(i).collision();

        }

        g.drawImage(packy, hero.x, hero.y, null);

        g.setColor(Color.BLACK);
        g.drawString("Score:" + score, 25, 55);

        repaint();

    }



    private void setX(int x){

        this.x = x;

    }

    private void setY(int y){

        this.y = y;

    }

    public void update(){

        hero.x += x;
        hero.y += y;

        if(hero.x < 0)
            hero.x = 0;
            else if(hero.x > 1230)
                hero.x = 1230;

        if(hero.y < 30)
            hero.y = 30;
        else if(hero.y > 670)
            hero.y = 670;

    }

    public void animationLoop(){

        try{
            while(true){
                update();
                Thread.sleep(15);
            }
        }
        catch(InterruptedException e){

        }

    }

    private class Input implements KeyListener{

        @Override
        public void keyPressed(KeyEvent e) {


            int keyCode = e.getKeyCode();

            if(keyCode == e.VK_W){

                setY(-5);

            }

            if(keyCode == e.VK_S){

                setY(5);

            }

            if(keyCode == e.VK_A){

                setX(-5);

            }

            if(keyCode == e.VK_D){

                setX(5);
            }


        }

        @Override
        public void keyReleased(KeyEvent e) {

            int keyCode = e.getKeyCode();

            if(keyCode == e.VK_W){

                setY(0);

            }

            if(keyCode == e.VK_S){

                setY(0);

            }

            if(keyCode == e.VK_A){

                setX(0);

            }

            if(keyCode == e.VK_D){

                setX(0);
            }

        }

        @Override
        public void keyTyped(KeyEvent e) {

        }
    }

    private class Gobbler{

        Rectangle rect;

        public Gobbler(){

            rect = new Rectangle(0, 0, 20, 20);
            moveGobbler();

        }

        public int getX(){
            return rect.x;
        }

        public int getY(){
            return rect.y;
        }

        private void moveGobbler(){

            rect.x = (int) (Math.random() * 1280);
            rect.y = (int) (Math.random() * 720);

            if(rect.y < 30)
                rect.y = 30;
            else if(rect.y > 700)
                rect.y = 700;

            if(rect.x > 1260)
                rect.x = 1260;
            else if(rect.x < 7)
                rect.x = 7;
        }

        public void collision(){

            if(rect.intersects(hero)){

                moveGobbler();
                hit = true;

            }

        }

    }

}