Getting all elements

Question

I have an XML document, that looks like this (I know, it doesn't make sense, it's just an example):

<Person>
  <Name>Peter</Name>
  <Country>Sweden</Country>
  <Param name="Sport" value="yes"/>
  <Param name="Color" value="no"/>
<Person/>

It can have an infinit number of the element Param.
Getting the content of Country I do

String country = doc.getElementsByTagName("Country").item(0).getTextContent();

Getting the content of the first attribute name of the first Param I do

String name = source.getElementsByTagName("Param").item(0).getAttributes().item(0).getNodeValue();

But how can I get all values of all the attributes of Param, without knowing how many elements of Param exist?

I need something like ("pseudo code"):

HashMap<String, String> hm = new HashMap<String, String>();

for(int i=0; i<=source.getElementsByTagName("Param").size(); i++){
  String name = source.getElementsByTagName("Param").item(i).getAttributes().item(0).getNodeValue();
  String value = source.getElementsByTagName("Param").item(i).getAttributes().item(1).getNodeValue();

  hm.put(name, value);
}

Answer 1

You can ask for an attribute by its name.

String attrName = source.getElementsByTagName("Param").item(i).getAttribute("name"));
String value = source.getElementsByTagName("Param").item(i).getAttribute("value"));
//you could test if the values are null
hm.put(attrName, value);