import javax.xml.parsers.*;
import org.xml.dom.*;
import org.xml.sax.InputSource;
import org.w3c.dom.*;

getFirstElement( Node node, String name ) {
	return node.getElementsByTagName( name ).item(0);
}
getSimpleElementText( Node node, String name ) {
	Node nameNode = getFirstElement( node, name );
	Node textNode = nameNode.getFirstChild();
	if ( textNode.getNodeType() != Node.TEXT_NODE )
		throw new DOMException("Not a text node: "+name);
	return textNode.getNodeValue();
}

factory = DocumentBuilderFactory.newInstance();
parser = factory.newDocumentBuilder();
document = parser.parse( new InputSource("zooinventory.xml") );
Node inventory = document.getDocumentElement();
NodeList animals = inventory.getElementsByTagName("Animal");

print("Animals = ");
for(int i=0; i<animals.getLength(); i++) {
	String name = getSimpleElementText( animals.item(i), "Name" );
	String species = getSimpleElementText( animals.item(i), "Species" );
	print( "  "+ name +"("+species+")" );
}

foodRecipe = getFirstElement( animals.item(1), "FoodRecipe" );
name = getSimpleElementText( foodRecipe, "Name" );
print("Recipe = " + name );
NodeList ingredients = foodRecipe.getElementsByTagName("Ingredient");
for(int i=0; i<ingredients.getLength(); i++) 
	print( "  "+ingredients.item(i).getFirstChild().getNodeValue() );