External data into Processing

Hey guys,

I am fairly new to this external-data-into-Processing stuff, so I am wondering what I am doing wrong with this tiny piece of code ...

XML root               = loadXML("http://www.w3schools.com/xml/cd_catalog.xml");
XML[] year             = root.getChildren("CATALOG/CD/YEAR");

for (int i = 0; i < year.length; i++) {

Thanks in advance!


  • What does this code do? Does it throw an exception? Behave strangely? Something else?

    Why are you passing an entire a tag into the loadXML() method? It just expects the URL, not the entire tag. Also, you either have to escape inner quotation marks, or use single quotes instead.

  • edited April 2015

    Hey KevinWorkman -

    Thanks for the quick reply.

    It should - at least that's what I am trying to do - be able to print the each of the years represented in the cd_catalog.xml-file.

    But the problem is that it doesn't do anything ... It doesn't println(year) of each of the catalogued CD's in the text/message area?


  • Sorry about that - I misunderstood your question ... I haven't passed an entire tag into the loadXML() method. I am unsure why it shows up like that in the code, as I have only placed the following in the loadXML() method:

    XML root = loadXML("http://www.w3schools.com/xml/cd_catalog.xml");

  • Can you do some debugging? Try printing out the value of root.toString(). What does that show you?

  • You must omit the root from your XQuery:

    XML[] years = root.getChildren("CD/YEAR");

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