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[Phptest-users] correct responses marked wrong on certain questions
From: |
cfischer5 |
Subject: |
[Phptest-users] correct responses marked wrong on certain questions |
Date: |
Thu, 13 Jan 2005 20:31:43 -0500 |
User-agent: |
Mozilla Thunderbird 1.0 (X11/20041206) |
Very occasionally, I write questions where the program has problems
matching the correct answer with the user's correct choice. I know that
there are problems if one of the answers is 0 (zero) so I usually write
zero rather than 0. And I am careful to use < for < though the
program always changes it. Here is a question that is graded
incorrectly (html copied from the answer page). Can you see anything in
it that would cause this?
<td width="100%" class="even"><b>Question #: 30: </b>What can be
determined about the contents of the list array?
<pre><b>
import java.util.Random;
public class Java1318
{
public static void main(String args[])
{
int list[] = {0,1,2,3,4,5,6,7,8,9};
Random r = new Random();
for (int k = 0; k < list.length ; k++)
list[r.nextInt(10)] = k;
System.out.println();
}
}
</b></pre>
<br />
<b>User's answer: </b><span class="incorrect">The original list array
contains {0,1,2,3,4,5,6,7,8,9} and then random elements of the list
array are changed to the current value of k.</span><br />
<b>Correct answer: </b>The original list array contains
{0,1,2,3,4,5,6,7,8,9} and then random elements of the list array are
changed to the current value of k.
<br />
<b>Additional Notes: </b><br /><br />
</td>
</tr>
</table>
<table width="90%" cellspacing="3" cellpadding="8">
<tr>
Thanks!
Charlotte Fischer
PS: A great program! I have used it for several years (upgraded to 6.3)
and have made a few modifications, such as being able to set the view
date, and adding a fifth question choice. I have a database of about
1700 questions (with some repeats since I reuse questions on different
tests).
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