How to show pictures in jFrame, using java2d?

Question

I\'m new on working with Java and Netbeans. In many others languages, it\'s a simple stuff to do. But after broke my brain thinking, I couldn\'t. My doubt is simple to expla

Answer 1

You need, as was told below to extend JPanel class and override paintComponent method in it.

public class DrawImageClass extends JPanel {
    private static final long serialVersionUID = 1L;
    private Image image;
    public DrawImageClass(Image image) throws HeadlessException {
        super();
        this.image = image;
    }

    @Override
    protected void paintComponent(Graphics g) {
        Graphics2D g2d = (Graphics2D)g;
        g2d.drawImage(image, null, null);
    }
}

And then create JFrame and add this class to it.

public class App {
    private static final int WIDTH=480, HEIGHT = 640;
    public static void main(String[] args) {
        JFrame frame = new JFrame();
        frame.setSize(new Dimension(HEIGHT, WIDTH));
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        try {
            DrawImageClass panel = new DrawImageClass(ImageIO.read(new File(App.class.getResource("/1.png").getPath())));
            panel.setPreferredSize(new Dimension(HEIGHT, WIDTH));
            frame.add(panel);
            frame.setVisible(true);
        } catch (Exception e) {
            System.out.println("wrong path or smth other");
        }  
    }
}

Example for picture which is in resource folder in project