Clash Royale CLAN TAG#URR8PPP

Adding two dollars amount in JSTL

My goal is make a variable called

"Dollar Diff" = Value of posting.dollarsInHeader -posting.dollarsReceived)/1000000


Check code below

<c:choose>
<c:when test="$ posting.dollarsReceived != 0">
<td class="alignright" class="$">
<fmt:formatNumber type="currency" minFractionDigits="1"
maxFractionDigits="1">$(posting.dollarsInHeader - posting.dollarsReceived)/1000000
</td>
</c:when>
<c:otherwise>
<td style="text-align: right; padding-right: 10px;">-</td>
</c:otherwise>
</c:choose>


Instead of $(posting.dollarsInHeader - posting.dollarsReceived)/1000000, I want to write $dollarDiff

$(posting.dollarsInHeader - posting.dollarsReceived)/1000000

$dollarDiff

1 Answer
1

I wouldn't recommend such logic written in view layer (jsp).
You can add a field in your posting class and write return the value accordingly.

//Ommit Posting class declaration
public double getDollarDiff()
return (this.dollarsInHeader-this.dollarsReceived)/1000000;



Then simply reference it with:

$posting.dollarDiff


EL treat your method as a field if it follow getter convention.

However, if you don't want to modify your pojo, you could try use

<c:set scope="request" var="dollarDiff" value="$(posting.dollarsInHeader - posting.dollarsReceived)/1000000"></c:set>


Then reference it with:

<c:out value="$requestScope.dollarDiff"></c:out>
<!--or-->
$requestScope.dollarDiff


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