Java Simple Applet Program.

 
import java.applet.Applet;
import java.awt.*;

public class SimpleApplet extends Applet {
    public void paint(Graphics g) {
        g.drawString("Hello, jpwebdevelopers!", 50, 50);
    }
}

Java Program for Drawing Shapes in an Applet.

 
import java.applet.Applet;
import java.awt.*;

public class ShapeApplet extends Applet {
    public void paint(Graphics g) {
        g.setColor(Color.red);
        g.drawRect(50, 50, 200, 100);

        g.setColor(Color.blue);
        g.fillRect(100, 100, 150, 80);

        g.setColor(Color.green);
        g.drawOval(250, 200, 100, 100);

        g.setColor(Color.yellow);
        g.fillOval(300, 250, 50, 50);
    }
}

Java Program for Displaying an Image in an Applet.

 
import java.applet.Applet;
import java.awt.*;

public class ImageApplet extends Applet {
    private Image image;

    public void init() {
        image = getImage(getDocumentBase(), "image.jpg");
    }

    public void paint(Graphics g) {
        g.drawImage(image, 0, 0, this);
    }
}

Java Program Interacting with the User with Listeners in an Applet

 

import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;

public class UserInteractionApplet extends Applet {
    private Button button;

    public void init() {
        button = new Button("Click me!");
        button.addActionListener(new ButtonClickListener());
        add(button);
    }

    class ButtonClickListener implements ActionListener {
        public void actionPerformed(ActionEvent event) {
            button.setLabel("Button Clicked!");
        }
    }
}

index