Check whether XML tag exist in Java

Question

I am parsing an XML javax.xml, but i want to know whether a tag exist on a child node For example

<tag>
 <child>
  <special_tag>Special</special_tag>
  <normal_tag>Normal</normal_tag>
 </child>
 <child>
  <normal_tag>Normal</normal_tag>
 </child>
</tag>

I am trying to know which Child has Special tag and which doesnt

Answer 1

Using xPath:

//child[special_tag]