JavaServer Pages, Second Edition

Name

<c:when>

Synopsis

The <c:when> action represents one of the mutually exclusive alternatives within a <c:choose> block. It evaluates its body only if it’s the first <c:when> action in the block with a test expression that evaluates to true.

Syntax

<c:when test="booleanExpression">
  JSP elements
</c:when>

Attributes

Attribute name	Java type	Dynamic value accepted	Description
test	boolean	Yes	The test expression

Example

<c:choose>
  <c:when test="${product.onSale}">
    <c:out value="${product.salesPrice}" /> On sale!
  </c:when>
  <c:otherwise>
    <c:out value="${product.price}" />
  </c:otherwise>
</c:choose>