import java.awt.*;

public class ColorDisplay extends Frame {

    int width, height;

    static Color colors[] =

                {Color.black, Color.blue, Color.cyan, Color.darkGray,

                Color.gray, Color.green, Color.lightGray, Color.magenta,

                Color.orange, Color.pink, Color.red, Color.white,

                Color.yellow};

    ColorDisplay () {

        super ("ColorDisplay");

        setBackground (Color.white);

    }

    static public void main (String args[]) {

        ColorDisplay f = new ColorDisplay();

        f.resize (300,300);

        f.show();

    }

    public void paint (Graphics g) {

        g.translate (insets().left, insets().top);

        if (width == 0) {

            Insets inset = insets();

            width  = (size().width - inset.right - inset.left) / 3;

            height = (size().height - inset.top - inset.bottom) / 5;

        }

        for (int i = 0; i < 3; i++) {

            for (int j = 0; j < 5; j++) {

                if ((i == 2) && (j >= 3)) break;

                g.setColor (colors[i*5+j]);

                g.fillRect (i*width, j*height, width, height);

            }

        }

    }

    public boolean keyDown (Event e, int c) {

        for (int i=0;i<colors.length;i++)

            colors[i] = colors[i].darker();

        repaint();

        return true;

    }

    public boolean mouseDown (Event e, int x, int y) {

        for (int i=0;i<colors.length;i++)

            colors[i] = colors[i].brighter();

        repaint();

        return true;

    }

}