I am trying to read a certain value in an XML file, I but fail and fail again

Magnetic_Garden

This is the code from were I start;

XML xml;

void setup() {
  xml = loadXML("mammals.xml");
  XML[] children = xml.getChildren("animal");

  for (int i = 0; i < children.length; i++) {
    int id = children[i].getInt("id");
    String coloring = children[i].getString("species");
    String name = children[i].getContent();
    println(id + ", " + coloring + ", " + name);
  }
}

but none of my adaptions give me access to the "test" element. I tried syntax like this;

    for( int j = 0 ; j < 10 ; j++ ){
    XML[] nameHelper = children[j].getChildren("description");
    }

but this gives me some weird hex-like values when I try nameHelper[0], I get a null. when I try nameHelper[1], I get a null pointer exeception.

sorry if I am not clear in my explanation.

here are the screenshots from the xlm.

blindfish

Don't double post!

<test> is a child of animal. In your loop have you tried:

String test = children[i].getChild("test");

Edited: getChild("test") returns the node test and not the String content; hence why this didn't work. See working code below...

koogs

(duplicate deleted)

Magnetic_Garden

Sorry for the double post.

String test = children[i].getChild("test");

gives me

"cannot convert XML to String"...

while

String coloring = children[i].getString("species");

gives no error, probably because its passing a string anyway.

thought

String test = children[i].getString("test");

gives me a null ;( :-S

and

XML test = children[i].getChild("test");

also returns a null...

Magnetic_Garden

Finally I found the solution thought the structure of the XML is a bit different I want to post an image of said file to the forum but for some reason I cannot upload the thing (?) I will try later thought.

XML xml;
xml = loadXML("bubbles.xml");
XML[] firstChild = xml.getChildren("bubble"); 


   // Looks at position 1
   XML secondChild = firstChild[1].getChild("diameter"); // Stores value into secondChild from specific part of array;  "diameter", using getChild,
   println(secondChild.getContent());                    // gets and prints content of  secondChild

   // Looks at position 0   
   XML thirdChild = firstChild[0].getChild("label");     // Stores value into secondChild from specific part of array;  "diameter", using getChild,
   println(thirdChild.getContent());                    // gets and prints content of  secondChild

blindfish

If you paste in the XML, highlight it and press the C (code) button it should work...

blindfish

And there should be no need to change the XML:

Sketch:

XML xml;

void setup() {
  xml = loadXML("mammals.xml");
  XML[] children = xml.getChildren("animal");

  for (int i = 0; i < children.length; i++) {
    int id = children[i].getInt("id");
    String coloring = children[i].getString("species");
    String name = children[i].getContent();
    println(id + ", " + coloring + ", " + name);

    String test = children[i].getChild("test").getContent();
        println("test: " + test + "\n");
  }
}

XML:

<?xml version="1.0"?>
<mammals>
   <animal id="0" species="Capra hircus">
     <test>Globe</test>
     Goat
   </animal>
   <animal id="1" species="Panthera pardus">
    <test>mountain</test>
    Leopard
    </animal>
   <animal id="2" species="Equus zebra">
   <test>tree</test>
   Zebra
   </animal>
 </mammals>

geChild("test") returns the node 'test' and not the String content; so it's an extra function call to get to the content.

Working with XML in Java reminds me why I prefer JSON and JavaScript :)