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Re: yet another irritating newbie question .....



I don't know if this is of any help, but I were your compiler, I'd be a bit confused, too - beginning with the first line:

You define a local variable PriceElement in the constructor of the class PriceElement, and that variable has the type of the superclass of PriceElement. Come to think of it, that's how you are supposed to call superclass constructors in some scripted languages with limited object-oriented capabilities (Macromedia Lingo, for instance). Likewise, a Java constructor does not have to return anything. Or more precisely, it can't. You will have to get rid of the final return statement.

If that's what you want, it is enough to just "call" the suberclass' constructor as the first line of your constructor. Make sure you call it with the right parameters, otherwise you'll get an error message like the one you see.

Hope this helps,

Morten


On 29/01/2006, at 14:58, Bob Irving wrote:

Dear list,
Sorry to post non-Mac related java stuff, but you can only subscribe to so many lists.
can anyone bite my head off and explain why the following minute piece of code generates the following error:
code------------------------------------------------------------------ ----------------------
import org.dom4j.*;
import org.dom4j.Document;
import org.dom4j.util.UserDataElement;
import org.dom4j.DocumentHelper;


import java.io.*;

public class PriceElement extends UserDataElement
{
    public String currency, price, elementName;

public PriceElement (String currency, String price, String elementName)
{
UserDataElement PriceElement = new UserDataElement(elementName);
Element money = PriceElement.addElement("Money");
money.addAttribute( "currency", currency);
money.addText(price);
return PriceElement;
}
}
error ---------------------------------------------------------------------- --------------------
[javac] /Users/bobirvin/Sites/SupplierConnect/src/ejb/com/ kenisys/supplierconnect/handler/PriceElement.java:14: cannot resolve symbol
[javac] symbol : constructor UserDataElement ()
[javac] location: class org.dom4j.util.UserDataElement
[javac] {
[javac] ^


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References: 
 >yet another irritating newbie question ..... (From: Bob Irving <email@hidden>)



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