屏幕尺寸和图像无法正常运行

Question

作为我计算机科学课的最后一课，我们可以在Java或某种大型项目中上课。我使用了一个现有的口袋妖怪java引擎，正在构建我的游戏。我遇到的问题是它不是正确的大小（160,144），除非你重新调整框架的大小，否则图像不会显示。如果有人有任何想法为什么那么伟大。此外，图片的路径是正确的，它不会让我出于某种原因发布它们。

import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.geom.AffineTransform;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class AnotherIdea {

public static class Engine extends JPanel implements KeyListener, ActionListener {

    public static JFrame jf;
    public Toolkit tk = jf.getToolkit();
    private Image titlescreen = tk.createImage("F:\\Votech Final\\Welcome to Nightvale\\anotherIdea\\src\\Resources\\Tittle.png");
    private Image start_symbol = tk.createImage("F:\\Votech Final\\Welcome to                                                              Nightvale\\anotherIdea\\src\\Resources\\Start.png");
    private boolean atTitle = true;
    private boolean atContinueScreen = false;
    private boolean start_visible = true;
    private boolean gamestarted = false;
    private int offsetX = 0, offsetY = 0;
private int TILE_WIDTH_PIXELS = 32;
private int TILE_HEIGHT_PIXELS = 32;
private int concurrentMenuItem = 0;
public long seconds = 0;
public long oldTime;
public long minutes = 0;
public long hours = 0;



public void paintComponent(Graphics g){
    super.paintComponent(g);
    Graphics2D g2 = (Graphics2D)g;
    AffineTransform at = new AffineTransform();
    g2.setTransform(at);
    if (atTitle == true) {
        g.drawImage(titlescreen,0,0,null);
        if (start_visible == true) {
            g.drawImage(start_symbol,0,260,null);
        }
}
}
         public void keyPressed(KeyEvent e) {
    int keyCode = e.getKeyCode();
    if (atTitle == true) {
        if (keyCode == KeyEvent.VK_ENTER) {
            atTitle = false;                
}
}
}
public static void main(String [] Args) {
     //Create the window
     jf = new JFrame("T.I.N.");
     jf.setSize(160,144);
     //Create an instance of Pokemon and insert into the window
     Engine engine = new Engine();
     jf.add(engine);
     jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     jf.setResizable(true);
     jf.pack();
     //Center the Game on the Screen
     Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();
     int w = jf.getSize().width;
     int h = jf.getSize().height;
     int x = (dim.width-w)/2;
             int y = (dim.height-h)/2;
     jf.setLocation(x,y);
     //Set focus to the Panel
     jf.setVisible(true);
     engine.requestFocus(true);                 

 }

    @Override
    public void keyTyped(KeyEvent e) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of     generated methods, choose Tools | Templates.
    }

    @Override
    public void keyReleased(KeyEvent e) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
}
}

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