Selectively showing and hiding buttons

[Mahtab Alam]

I need some help.

I am thinking of creating a quiz application and facing one problem.

On first question I don`t have to show previous button and on last question I don`t have to show next button.
And for in between question I have to show both the buttons.
.
How can I do that in a JSP page.

[Bear Bibeault]

Determine if you are on the first or last page, and omit the unnecessary buttons as appropriate. You'd use the JSTL conditional tags (most likely <c:if>) to make decisions.

[chets patel]

Maintain index of current question being displayed. If currentQuestion index == 1 then do not display Previous button. If currentquestion index == last, then do not display Next button. As Bear Bibeault explained, use JSTL to maintain if condition.

[Mahtab Alam]

Thanks guys , I will try.

[Mahtab Alam]

I tried this but its not working.
Below if test is true.

<c:if test=" ${sessionScope.quest.questionNumber!=0}" >
<input type="text" name="prev" value="Previous"/>
</c:if>

What is the problem.

[Bear Bibeault]

Not working? Please read ItDoesntWorkIsUseless.

What have you done to debug this? Does quest exist on the session? If so, does it have a proper getter for the questionNumber property? If so, does it return the correct result?

[Mahtab Alam]

Yes Everything is there .

Even

<c:if test=" ${0 eq 0}" var="result">
</c:if>
<c:out value="${result}"/>

Even this print false.
It should be true.

[J. Kevin Robbins]

Remove that leading space in your test statement. It's the little things that can make all the difference.