At 10:38 AM 2/26/2004, you wrote:
The "+" operator is an overloaded operator in Java. Here, within <%= %> it thinks it is supposed to be concatenating and not adding. So, it cannot be applied to an integer in this case because that operator is being used to concatenate strings. I am going to assume that ctr is an integer. If so, the try the following:
<%= "" + (ctr + 1) %>
This will add the integers first with the second + operator, and then tell the first + operator for concatenation that you are dealing with strings by putting the "" first. You can also try:
<%= (ctr + 1) %>
But my suspicion is that the <%= %> stuff will have the same problem even without the operator, because the <%= %> will expect a string. The use of "" before the (ctr + 1) will signal the applicaiton to change the result of (ctr + 1) to a string for purposes of concatenation.
Anyway, something like that, I think.
Michael McGrady
At 09:13 AM 2/26/2004, you wrote:Sorry, my mailer messed up the last one, so here again...
newbie question:
I have a jsp which displays several rows with a logic:iterate, also using the indexId-tag.
<logic:iterate name="dateForm" property="raw" id="foo" indexId="ctr" >
I'd like to display row numbers in my table. But the ctr-variable is 0- based, and I would like to present 1 as the first number to my users.
Now, this should work, isn't it??
<td><%= ctr + 1 %></td>
I would guess: ctr and 1 are added, and is then cast to a string, and then printed in my table column.
Then why do i get this error?
operator + cannot be applied to java.lang.Integer, int [javac] out.print( ctr + 1 );
It also does not work when I create a new variable with <%! int i=0; %> , and then try to set this i as i = ctr + 1, same error.
So how can I get this row number printed in my table, inside the jsp, as ctr + 1???
Rinke
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