File handling with applets

Question

I am trying to design am opinion poll applet in Java for my site. The poll consists of a CheckbokGroup and a "Submit" Button. On clicking "Submit" the proper percentage claculations are performed and written to an external file using byte streams. Now problem is that i get a security exception when the applet appempts to create the file. Please advice.
Source Code
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.io.*;
<applet code="Poll" width=144 height=500>
</applet>
public class Poll extends Applet implements ActionListener
Checkbox cpp,java,assembly,vb,perl,asp;
CheckboxGroup cbg;
Label l1,l2,blank;
Button submit;
String q1="Which is your favourite";
String q2="programming language?";
boolean visible=true;
public void init()
setLayout(new GridLayout(9,1));
l1=new Label(q1,Label.CENTER);
l2=new Label(q2,Label.CENTER);
blank=new Label("");
cbg=new CheckboxGroup();
cpp=new Checkbox("C/C++",cbg,false);
java=new Checkbox("Java",cbg,false);
assembly=new Checkbox("Assembly",cbg,false);
vb=new Checkbox("Visual Basic",cbg,false);
perl=new Checkbox("Perl",cbg,false);
asp=new Checkbox("ASP",cbg,false);
submit=new Button("Submit");
add(l1);
add(l2);
add(cpp);
add(java);
add(assembly);
add(vb);
add(perl);
add(asp);
add(submit);
submit.addActionListener(this);
public void actionPerformed(ActionEvent ae)
int index=-1;
Checkbox temp=cbg.getSelectedCheckbox();
if(temp==cpp) index=0;
if(temp==java) index=1;
if(temp==assembly) index=2;
if(temp==vb) index=3;
if(temp==perl) index=4;
if(temp==asp) index=5;
if(index!=-1)
displayResults(index);
void displayResults(int index)
int size=7;
byte buf[]=new byte[size];
int pcent[]=new int[size];
try
InputStream fi=new FileInputStream("polldata.txt");
fi.read(buf);
fi.close();
buf[index+1]++;
buf[0]++;
for(int i=0;i pcent[0]=buf*100/buf[0];
try
OutputStream fo=new FileOutputStream("polldata.txt");
fo.write(buf);
fo.close();
}catch(FileNotFoundException fe)
}catch(IOException ie)
}catch(FileNotFoundException e)
try
for(int i=0;i<7;i++)
buf[i]=0;
OutputStream fi=new FileOutputStream("polldata.txt");
fi.write(buf);
fi.close();
System.err.println("Here am I");
//displayResults(index);
}catch(FileNotFoundException ee)
catch(IOException ee)
}catch(IOException e)
void graphResult(byte b[])
//PLEASE IGNORE THE CODE IN THIS METHOD.
//I STILL HAVE TO WRITE THE CODE FOR GRAPHICALLY
//DIPLAYING THE RESULTS
remove(l1);
remove(l2);
remove(cpp);
remove(java);
remove(assembly);
remove(vb);
remove(perl);
remove(asp);
remove(submit);
submit.setLabel("O.K.");
for(int i=0;i<8;i++)
add(blank);
add(submit);
add(l1);
add(l2);
add(cpp);
add(java);
add(assembly);
add(vb);
add(perl);
add(asp);
add(submit);

Answer 1

Are we talking about a local intranet site or a site on the web?
If the answer is local, then it's a simple matter of mapping the drive.
If the answer is the web, then you will need a server-side software (be it a servlet, cgi, asp, php, or whatever) to accomplish what you wanted to do.
V.V.