Can't accept parameters from an applet

Hi,
Please help me out receiving parameters from the following applet.
I have embedded the <applet> tag in my .java source code and when try to run it through the appletviewer it cannot accept any parameter passed. Using an .html file also gives the same result. Please help.

/*
<applet code = "ChartApplet.class" width = "300" height = "300">
  <param name="title" value="The Applet">
  <param name="total" value="12">
  <param name="item1" value="January">
  <param name="item2" value="February">
  <param name="item3" value="March">
  <param name="item4" value="April">
  <param name="item5" value="May">
  <param name="item6" value="June">
  <param name="item7" value="July">
  <param name="item8" value="August">
  <param name="item9" value="September">
  <param name="item10" value="October">
  <param name="item11" value="November">
  <param name="item12" value="December">
  <param name="val1" value="45.89">
  <param name="val2" value="17.78">
  <param name="val3" value="53.25">
  <param name="val4" value="81.9">
  <param name="val5" value="12.5">
  <param name="val6" value="18.2">
  <param name="val7" value="78.45">
  <param name="val8" value="35.67">
  <param name="val9" value="71.68">
  <param name="val10" value="40.37">
  <param name="val11" value="55.62">
  <param name="val12" value="16.62">
</applet> 
*/

import java.awt.* ;
import javax.swing.* ;
import java.text.* ;
 
public class ChartApplet extends JApplet
{
    private String      str  = "Prosenjit Component" ;
    private FontMetrics fm, fmB ;
    private Font        fnt  = new Font("Arial", Font.PLAIN, 10) ;
    private Font        fntB = new Font("Verdana", Font.BOLD, 10) ;
    private float       maxVal ;
 
    NumberFormat        nf ;
 
    private String      items[] ;
    private float       prices[] ;
 
   
    public void init()
    {
        System.out.println("title = " + getParameter("title")) ;
        // Prints [B]title = null[/B]        
 
        int n = Integer.parseInt(getParameter("total")) ;  // [B]Can't access[/B]
        
        items = new String[n] ;
        prices = new float[n] ;
 
        nf = NumberFormat.getInstance() ;
        nf.setMinimumFractionDigits(2) ;
        nf.setMaximumFractionDigits(2) ;
 
        maxVal = prices[0] ;
 
        for (int i = 1 ; i < prices.length ; i++)
        {
            items[i] = getParameter("item" + i) ;
            prices[i] = Float.parseFloat(getParameter("val" + i)) ;
            
            if (maxVal < prices[i])
                maxVal = prices[i] ;
        }
 
      maxVal = (float) (maxVal * 1.1) ;
    }
 
    public void paint(Graphics g)
    {
        int marginH = (int) (getHeight() * .1) ;
        int marginW = (int) (getWidth() * .1) ;
        int i, n, maxHt ;
        int y = 0 ;
        String str ;
        float scale ;
        int barWidth, gap, mid ;
        float tmpWidth ;
        Rectangle rect = new Rectangle() ;
 
        super.paint(g) ;
 
        n = items.length ;
        maxHt = getHeight() - 2 * marginH ;
 
        if (fm == null)
        {
            fm = g.getFontMetrics(fnt) ;
            fmB = g.getFontMetrics(fntB) ;
        }
 
        scale = maxHt / maxVal ;
 
        g.setFont(fnt) ;
 
        tmpWidth = (int) ((getWidth() - 2 * marginW) / (3 * n - 1)) ;
        gap = (int) tmpWidth ;
        barWidth = (int) (tmpWidth * 2) ;
 
        y = getHeight() - marginH ;
        
        rect.width = barWidth ;
        rect.x = marginW ;
        
        g.drawLine(rect.x, marginH/2, rect.x, y) ;
        g.drawLine(marginW/2, y, getWidth()-marginW/2, y) ;
        for(i = 0 ; i < n ; i ++)
        {
            rect.height = (int) (prices[i] * scale) ;
            rect.y = y - rect.height ;
            drawBar(g, rect, Color.RED, Color.black) ;
            
            mid = rect.x + barWidth/2 ;
            
            str = nf.format(prices[i]) ;
            g.setFont(fnt) ;
            g.drawString(str, mid-fm.stringWidth(str)/2, rect.y-1) ;
            
            g.setFont(fntB) ;
            g.drawString(items[i], mid-fmB.stringWidth(items[i])/2, y + fmB.getHeight()) ;
         
            rect.x += barWidth + gap ;
        }
    }
 
    private void drawBar(Graphics g, Rectangle r, Color fColor, Color bColor)
    {
        g.setColor(fColor) ;
        g.fillRect(r.x, r.y, r.width, r.height) ;
        g.setColor(bColor) ;
        g.drawRect(r.x, r.y, r.width, r.height) ;
    }
}

Putting the parameters in the applet source code accomplishes nothing (the source is neither examined, nor is it generally available).

There are some exceptions later on, but reading the parameters works fine for me with the HTML you posted.

Could not get you. Kindly explain more.
I tried both from html and also the embedded tag in the source code. But none works.

What does your HTML file look like? (Don't bother posting the source file - applets are started from HTML files, not .java files.)

Here is the html code.

<html>
   <head><title>Demo of a Chart</title></head>
   <body>
<applet code = "ChartApplet.class" width = "300" height = "300">
  <param name="title" value="The Applet">
  <param name="total" value="12">
  <param name="item1" value="January">
  <param name="item2" value="February">
  <param name="item3" value="March">
  <param name="item4" value="April">
  <param name="item5" value="May">
  <param name="item6" value="June">
  <param name="item7" value="July">
  <param name="item8" value="August">
  <param name="item9" value="September">
  <param name="item10" value="October">
  <param name="item11" value="November">
  <param name="item12" value="December">
  <param name="val1" value="45.89">
  <param name="val2" value="17.78">
  <param name="val3" value="53.25">
  <param name="val4" value="81.9">
  <param name="val5" value="12.5">
  <param name="val6" value="8.2">
  <param name="val7" value="78.45">
  <param name="val8" value="35.67">
  <param name="val9" value="71.68">
  <param name="val10" value="40.37">
  <param name="val11" value="55.62">
  <param name="val12" value="16.62">
</body>
</html>

The applet tag is not being closed.

Yes, that is the real mistake. But still the result is the same even after closing the applet tag. It cannot read the applet parameters. If you copy and pasted the code to execute, perhaps then you will understand what is going wrong.

<html>
   <head><title>Demo of a Chart</title></head>
   <body>
<applet code = "ChartApplet.class" width = "300" height = "300">
  <param name="title" value="The Applet">
  <param name="total" value="12">
  <param name="item1" value="January">
  <param name="item2" value="February">
  <param name="item3" value="March">
  <param name="item4" value="April">
  <param name="item5" value="May">
  <param name="item6" value="June">
  <param name="item7" value="July">
  <param name="item8" value="August">
  <param name="item9" value="September">
  <param name="item10" value="October">
  <param name="item11" value="November">
  <param name="item12" value="December">
  <param name="val1" value="45.89">
  <param name="val2" value="17.78">
  <param name="val3" value="53.25">
  <param name="val4" value="81.9">
  <param name="val5" value="12.5">
  <param name="val6" value="8.2">
  <param name="val7" value="78.45">
  <param name="val8" value="35.67">
  <param name="val9" value="71.68">
  <param name="val10" value="40.37">
  <param name="val11" value="55.62">
  <param name="val12" value="16.62">
</applet>
</body>
</html>

[ January 26, 2008: Message edited by: Prosenjit Banerjee ]

Like I said, reading the parameters worked just fine for me.

There are some exceptions later due to incorrect program logic, though (the loops seem to run from 1 to 11 instead of 1 to 12, and element 0 of the arrays is not initialised).

Thank you very much Mr. Dittmer for going through my code so carefully and giving me solutions. Now it runs correctly. :-)
[ January 26, 2008: Message edited by: Prosenjit Banerjee ]