validating xml against a DTD

[carl jensen]

How do I validate XML against a DTD? I don't see how I am supposed to reference the DTD in my java code.
Thanks!
-carl

[William Brogden]

Generally, you don't point to the DTD in the Java code, the XML document must refer to it, AND you must specify a validating parser in your Java code.
Sounds like you need a basic XML reference book - O'Reilly publishes a nice compact one.
Bill
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[carl jensen]

Thanks for your quick response.
Maybe I should clarify. My xml document (textXML in the code below) does specify the DTD, but I get an exception because the DTD cannot be found. Here is my code:
SAXBuilder builder = new SAXBuilder();
builder.setValidation(true);

// Create the document
StringReader xmlreader = new StringReader(testXML);
Document doc = builder.build(xmlreader);

When I run this code, I get the following exception:
org.jdom.JDOMException: Error on line 0: File "TXLife2.4.99.01.dtd" not found.
So, I guess the question is: How do I make my Java program aware of the location of my DTD?
I am using VAJ for my IDE.
Thanks!

[carl jensen]

I have answered my own question. To specify the DTDs location on the hard drive, do the following:
<!DOCTYPE Xmlife SYSTEM "file:///c:/DTDs/TXLife2.4.99.01.dtd">