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Buffered image example

mikhail_dvorkin | PRO | 11/25/15 10:33:38 AM UTC | 0 ⭐ | 3151 👁️ | Never ⏰ | []
Java |

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import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.*;
 
import javax.swing.*;
 
@SuppressWarnings("serial")
public class Applet2018a extends JApplet implements ActionListener {
    JPanel controlPanel;
    int x = 0;
    int fps = 24;
    Timer timer = new Timer(1000 / fps, this);
    JPanel drawPanel = new JPanel() {
        @Override
        public void paint(Graphics g) {
            BufferedImage image =
                    new BufferedImage(drawPanel.getWidth(),
                            drawPanel.getHeight(),
                            BufferedImage.TYPE_INT_RGB);
            Graphics g2 = image.getGraphics();
            g2.setColor(Color.CYAN);
            g2.fillRect(0, 0, drawPanel.getWidth(), drawPanel.getHeight());
            g2.setColor(Color.BLACK);
            for (int i = 0; i < 80; i++) {
                for (int j = 0; j < 80; j++) {
                    g2.fillOval(x + 5 * i, x + 5 * j, 4, 4);
                }
            }
            g.drawImage(image, 0, 0, null);
        }
    };
    
    @Override
    public void init() {
//      this.setLayout(new GridLayout(1, 2));
        this.add(drawPanel);
        timer.start();
    }
 
    @Override
    public void actionPerformed(ActionEvent e) {
        x += 1;
        drawPanel.repaint();
    }
}

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