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Java Forum / General / October 2007Formatting a value (jsp - to thousands)
In my jsp form I want to format a variable from something like 235522455 to 235,522,455 I am trying to format it with DecimalFormat as follows: DecimalFormat dfThou = new DecimalFormat("###,###"); <td class="info"><bean:write name="infoForm" property="<=% dfThou.format(infoValue(pop).value) %>"/></td> which obviously does not work. Here is the line prior to my formatting attempt: <td class="info"><bean:write name="infoForm" property="infoValue(pop).value"/></td> Can anyone help with the syntax? Thanks! Kay On Oct 1, 9:51 am, compaqr4...@lycos.com wrote: > In my jsp form I want to format a variable from something like > 235522455 to 235,522,455 [quoted text clipped - 13 lines] > Thanks! > Kay You might want to try the fmt tag library. It is a part of JSTL. <fmt:formatNumber value="12345678" pattern="#,###,###"/> should do it. You can play around with other options this library provides. -cheers, Manish > On Oct 1, 9:51 am, compaqr4...@lycos.com wrote: > [quoted text clipped - 23 lines] > -cheers, > Manish Okay, I added the format tag: <%@ taglib uri="http://java.sun.com/jstl/fmt" prefix="fmt" %> but how can I change the example you displayed <fmt:formatNumber value="12345678" pattern="#,###,###"/> to use the jsp variable: <bean:write name="infoForm" property="infoValue(pop).value"/> instead of the string "12345678"? Thanks for your patience, I'm not very strong in jsp. Kay On Oct 1, 11:20 am, compaqr4...@lycos.com wrote: > > On Oct 1, 9:51 am, compaqr4...@lycos.com wrote: > [quoted text clipped - 35 lines] > > Kay Once you are comfortable with basic JSP syntax, try to learn about avoiding scriptlets. There are alternatives like EL and tag libraries that are way easier to use, read and code. Anyway, here is what you can do for now: <fmt:formatNumber value="<%= however you get this value, using plain java %>" pattern="#,###,###"/> In your case I am guessing it'd be something like <fmt:formatNumber value="<%=infoValue(pop).value%>" pattern="#,###,###"/> -cheers, Manish compaqr4...@lycos.com wrote: >> but how can I change the example you displayed >> <fmt:formatNumber value="12345678" pattern="#,###,###"/> [quoted text clipped - 3 lines] >> >> Thanks for your patience, I'm not very strong in jsp. > Once you are comfortable with basic JSP syntax, try to learn about > avoiding scriptlets. There are alternatives like EL and tag libraries [quoted text clipped - 6 lines] > In your case I am guessing it'd be something like > <fmt:formatNumber value="<%=infoValue(pop).value%>" pattern="#,###,###"/> You might need a scriptlet output expression with the accessor method explicity invoked, similar to: <fmt:formatNumber value="<%= infoValue(pop).getValue() %>" pattern="#,###,###" /> The Struts <bean:write> tag "property" attribute contains > the name of the property to be accessed on the bean specified by name. > This value may be a simple, indexed, or nested property reference expression. <http://struts.apache.org/1.3.8/struts-taglib/tlddoc/bean/write.html> I'm not accustomed to such complicated expressions in the property attribute. What is the corresponding element of the infoForm object? What is the property of it that you mean to invoke?  SignatureLew Thanks for your help and suggestions Manish and Lew. Before I go any further I think that I need to delve a little further into what's happening in the code, so that I can understand it better. This is something that someone else developed and I inherited. I thought that a quick fix might be available, but I don't understand enough yet even to use your suggestions. Once I have a better grasp I'll post another question! Thanks! Kay > compaqr4...@lycos.com wrote: > >> but how can I change the example you displayed [quoted text clipped - 34 lines] > -- > Lew Please don't top-post. Lew wrote: >> I'm not accustomed to such complicated expressions in >> the property attribute. >> What is the corresponding element of the infoForm object? >> What is the property of it that you mean to invoke? > Thanks for your help and suggestions Manish and Lew. Before I go any > further I think that I need to delve a little further into what's [quoted text clipped - 3 lines] > to use your suggestions. Once I have a better grasp I'll post another > question! In the meantime, give some thought to answering the questions people have asked you. SignatureLew Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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