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

public class CanvasDemo extends Applet {

    MyCanvas canvas = new MyCanvas();

    public void init() {
        canvas.setBackground(Color.lightGray);
        canvas.setSize(200,100);
        add(canvas);
    }
}

class MyCanvas extends Canvas {
    public void paint(Graphics g) {
        g.drawString("I am in a canvas", 20, 20);
    }
}