import javax.swing.*;
import java.awt.*;
import java.net.URL;

class MyPanel extends JPanel {
    
    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        
        Toolkit tk = Toolkit.getDefaultToolkit();
        try {
            URL url = new URL("https://gateway.manchester.edu/Lists/DatatelPortalPicturesOfTheWeek/_w/adbuild_jpg.jpg");
        Image img = tk.getImage(url);
        
        g.drawImage(img, 20, 20, this);
        } catch (Exception e) {
            
        }
        
    }
    
}

class MyFrame extends JFrame {
    
    public MyFrame() {
        
    }
    
    public void setupMyFrame() {
        this.setSize(400, 400);
        this.setTitle("Java Frame");
        
        Container p = this.getContentPane();
        
        p.setBackground(Color.GREEN);
        p.add(new MyPanel());
        
        this.setVisible(true);
    }
    
}

public class LoadImage {
    
    public static void main(String[] args) {
        
        (new MyFrame()).setupMyFrame();
        
    }
    
}