Listing 4. calculator.jsp
<HTML>
<Head><Title>Calculator</Title></Head>
<jsp:useBean id="calculator"
class="il.co.lerner.Calculate"/>
<Body>
<H1>Simple calculator</H1>
<jsp:setProperty name="calculator" property="*"/>
<P>Setting arg1 to <jsp:getProperty name="calculator"
property="arg1"/>.</P>
<P>Setting arg2 to <jsp:getProperty name="calculator"
property="arg2"/>.</P>
<P>Sum: <jsp:getProperty name="calculator"
property="sum"/></P>
<P>Quotient:
<% try { %>
<jsp:getProperty name="calculator"
property="quotient"/>
<% } catch (Exception e) { %>
<B>Error! division by zero</B>
<% } %>
</P>
<P>Difference: <jsp:getProperty name="calculator"
property="difference"/></P>
</Body>
</HTML>
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