Grid GUI.java

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.image.BufferedImage;

public class GUI extends JFrame
{
    private JButton upButton;
    private JButton leftButton;
    private JButton rightButton;
    private JButton downButton;
    private JPanel panel;
    public GUI()
    {
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        Container window = getContentPane();
        window.setLayout(new BorderLayout());
        
        upButton = new JButton("Up");
        window.add(upButton, BorderLayout.PAGE_START);
        upButton.addActionListener(new ActionListener() 
        {
            @Override
            public void actionPerformed(ActionEvent actionEvent) {
                draw("up");
            }
        });
        
        leftButton = new JButton("Left");
        window.add(leftButton, BorderLayout.LINE_START);
        leftButton.addActionListener(new ActionListener() 
        {
            @Override
            public void actionPerformed(ActionEvent actionEvent) {
                draw("left");
            }
        });
        
        panel = new JPanel();
        panel.setPreferredSize(new Dimension(701, 701));
        panel.setBackground(Color.lightGray);
        window.add(panel, BorderLayout.CENTER);
        
        rightButton = new JButton("Right");
        window.add(rightButton, BorderLayout.LINE_END);
        rightButton.addActionListener(new ActionListener() 
        {
            @Override
            public void actionPerformed(ActionEvent actionEvent) {
                draw("right");
            }
        });
        
        downButton = new JButton("Down");
        window.add(downButton, BorderLayout.PAGE_END);
        downButton.addActionListener(new ActionListener() 
        {
            @Override
            public void actionPerformed(ActionEvent actionEvent) {
                draw("down");
            }
        });
    }
    public void draw(String d) {
        BufferedImage text = new BufferedImage(701, 701, BufferedImage.TYPE_INT_ARGB);
        Graphics paper = text.getGraphics();

        paper.setColor(Color.lightGray);
        paper.fillRect(0,0,701,701);

        paper.setFont(new Font("TimesRoman", Font.PLAIN, 20));
     
        paper.setColor(Color.black);
    
        paper.drawString("Heading " + d, 280, 360);
        panel.getGraphics().drawImage(text, 0, 0, this);
    }
}

main.java

public class Main {
    public static void main(String[] args) {
        GUI frame = new GUI();
        frame.setSize(800, 800);
        frame.setVisible(true);
    }
}