It's better to load all the questions at once (in setup), immediately filter out the comments and get a random question when you need one.

Code Example

1. String[] questions;
2.  
3. void setup() {
4.   questions = loadQuestions();
5.   println(questions);
6.   println("A random question: " + randomQuestion());
7.   exit();
8. }
9.  
10. String[] loadQuestions() {
11.   String[] temp = loadStrings("questions.txt");
12.   ArrayList <String> list = new ArrayList <String> ();
13.   for (int i=0; i<temp.length; i++) {
14.     if (!temp[i].startsWith("#")) list.add(temp[i]);
15.   }
16.   temp = new String[list.size()];
17.   list.toArray(temp);
18.   return temp;
19. }
20.  
21. String randomQuestion() {
22.   if (questions.length > 0) {
23.     return questions[int(random(questions.length))];
24.   } else {
25.     return "No questions loaded!";
26.   }
27. }

with a questions.txt file that looked something like this...

1. question 1
2. question 2
3. # comment 1
4. question 3
5. question 4
6. # comment 2
7. question 5

Thanks so Much for your detailed reply. Couldn't have been better. Trying it out now

Hi, worked as expected, but when putting it together with my Program i observed a little problem

Don't call randomQuestion from draw.  Call it at the moment you are ready to generate a new question (such as when an important event occurs, or the user clicks the mouse or whatever).  Store the result in a string.

Thanks once again, i Hope im not being an Oliver Twist here. Please is there a better way of representing this?