<c:forEach varStatus="index" items="" var="'>

${index.index}

</c:choose>

${index.index } gives you the index that the loop is in. items take in the array attribute and var is variable for each object in that array. 

xytian wrote:

lishenyu wrote:

Dr sun ,

could you tell me how to represent  for(int i=0;i<size();i++) this kind of for loop in jsp ?   because I need to use index i in jsp .

<c:forEach begin="0" end="${ fn:length(something)-1 }" var="i">
                          ....
</c:forEach>

in this kind of for loop , the [var="i"]   ,can I use the "i" like this:

${renters[i].borrowtime} ?     renters is my arraylist.

xytian wrote:

lishenyu wrote:

xytian wrote:

lishenyu wrote:

Dr sun ,

could you tell me how to represent  for(int i=0;i<size();i++) this kind of for loop in jsp ?   because I need to use index i in jsp .

<c:forEach begin="0" end="${ fn:length(something)-1 }" var="i">
                          ....
</c:forEach>

in this kind of for loop , the [var="i"]   ,can I use the "i" like this:

${renters[i].borrowtime} ?     renters is my arraylist.

Give it a try.

In this case it is more convenient to use <c:forEach items="${renters}" var="renter">  $renter.borrowtime </c:forEach>

 

I want to print an arraylist in reverse order , so at first I use the following:

<c:forEach begin="${ fn:length(renters)-1 }" end="0" var="i" step="1">

<tr><td>${renters[i].cin}</td><td>${renters[i].renter}</td></tr>

But the fact is that  the above code doesn't print anything (the arraylist is not empty.) .  So could you tell me what should I do to print the array in reverse order using ~<c:forEach items="${renters}" var="renter">  this kind of for loop that has no index I?

Thank you very much !

when I did  step='-1'  ,it shows an error of "~javax.servlet.ServletException: javax.servlet.jsp.JspTagException: 'step' <= 0"

  So step cant be -1 .So use the for loop that has index i  can't print the arraylist with reverse order ?