Tabulate a survey using a servlet & writing to a file

[Jessica Nieves]

Hi!!
I need to develop a questionnaire and tabulate users' answers.
I will use a servlet to process the questionnaire and write the answers to a file.
Could someone give me info on how do I write to a file using servlets??
Any new idea on how to develop my questionnaire is accepted!!

Thanks a lot.

JNP

[Norm]

I think you can use the same classes to write to a file from a servlet as from any other java application.

Norm

[Jessica Nieves]

I am having some problems appending to a file. I used

FileWriter fout = new FileWriter(outputFile,true);



to make the append.
my code doesnt compiles.
this is the code for the file tasks


String outputFileName = "c:/text.txt";
File outputFile = new File(outputFileName);
FileWriter fout = new FileWriter(outputFile,true);
FileWriter fout = new FileWriter(outputFile,true);
fout.write("This will be the appended data");



The error is the following:
cuestionario.java [57:1] cannot resolve symbol
symbol : constructor FileWriter (java.io.File,boolean)
location: class java.io.FileWriter
FileWriter fout = new FileWriter(outputFile,true);
^
1 error
Errors compiling cuestionario.

Can you tell me what's wrong??
Thanks

JNP

[Claudiu Tomescu]

Hi,

I think it's pretty obvious what's wrong:
the FileWriter class doesn't have a constructor which takes a File and boolean as arguments. You should pass the instead the file name and the boolean; the following code should compile


FileWriter out = new FileWriter(outputFileName, true);




regards,
Claudiu

Brainbench MVP for C++
ICQ #: 65097130
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[Jessica Nieves]

I solved the problem about appending to a file. Now I have all the user's answers on a file named respuestas.txt. I am completely stock here. I dont know how to tabulate the results. What I need is to determine how many persons answered a, how many answered b (as an example)... etc Please give me some ideas.

JNP

[Norm]

You'll have to do some problem analysis here.
There are many solutions depending on what the data looks like and how you are able to read thru it.
For example, have a loop that iterates thru all the persons and have a group of counters for the answers;
In pseudo code:
start loop:
get next person
if person answered ques_a
ques_a_cnt++; // count
if person answered ques_b
ques_b_cnt++;
... etc
end loop;

Norm