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HTML> BERSAGLIO <BODY

&lt;HTML&gt;
&lt;HEAD&gt;
&lt;TITLE&gt;BERSAGLIO&lt;/TITLE&gt;
&lt;/HEAD&gt;
&lt;BODY&gt;
&lt;CENTER&gt;
&lt;H1&gt;BERSAGLIO &lt;/H1&gt;
&lt;H2&gt;&lt;I&gt;I COLORI SONO BIANCO E NERO&lt;/I&gt;&lt;/H2&gt;
&lt;H3&gt;&lt;STRONG&gt;LO SFONDO E' GIALLO&lt;/STRONG&gt;&lt;/H3&gt;
&lt;HR&gt;
&lt;APPLET CODE=&quot;Bersaglio&quot; WIDTH=&quot;300&quot; HEIGHT=&quot;300&quot;&gt;
&lt;PARAM NAME=&quot;QUOTA&quot; VALUE=&quot;25&quot;&gt;
&lt;/APPLET&gt;
&lt;HR&gt;
&lt;/CENTER&gt;
&lt;/BODY&gt;
&lt;/HTML&gt;
import java.applet.Applet;
import java.awt.*;
// Bersaglio bianco nero
public class Bersaglio extends Applet {
private int MAX_EDGE;
private int DIFF;
private Color colore;
public void init() {
MAX_EDGE =
getBounds().width&gt;getBounds().height?getBounds().height:getBounds().width;
String quota=getParameter(&quot;QUOTA&quot;);
if (quota==null)
DIFF=1;
else
DIFF=Integer.parseInt(quota);
setBackground(Color.yellow);
}
public void paint(Graphics g) {
Graphics2D g2D = (Graphics2D)g;
int x = 0, y =0;
int lato = MAX_EDGE;
colore = Color.black;
while (lato&gt;0) {
g2D.setColor(colore);
g2D.fillOval(x, y, lato, lato);
x+=DIFF;
y=x;
lato -= 2*DIFF;
colore = (colore == Color.black)?Color.white:Color.black;
}
}
}
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