title: random xml node android
body: <p>I have this xml document and I'd like to extract each node(laquestion)randomly so I could make a quiz using android studio:</p>
  
  <pre><code>String questionXml = "&lt;?xml version=\"1.0\" encoding=\"utf-8\"?&gt;"
  
                  +"&lt;question&gt;"
                  +"&lt;laquestion&gt;Quelle est la capitale des blabla?&lt;/laquestion&gt;"
                  + "&lt;repv&gt;" + "Mo" + "&lt;/repv&gt;"
                  + "&lt;repf&gt;" + "Mu" + "&lt;/repf&gt;"
                  + "&lt;rep&gt;" + "Mi" + "&lt;/rep&gt;"
                  +"&lt;/question&gt;"
                  +"&lt;question&gt;"
                  +"&lt;laquestion&gt;Quelle est la langue officielle des blabla?&lt;/laquestion&gt;"
                  + "&lt;repv&gt;" + "F" + "&lt;/repv&gt;"
                  + "&lt;repf&gt;" + "c" + "&lt;/repf&gt;"
                  + "&lt;rep&gt;" + "Ar" + "&lt;/rep&gt;"
                  +"&lt;/question&gt;"
                  +"&lt;question&gt;"
                  +"&lt;laquestion&gt;L'île la plus grande des blabla est:&lt;/laquestion&gt;"
                  + "&lt;repv&gt;" + "N" + "&lt;/repv&gt;"
                  + "&lt;repf&gt;" + "M" + "&lt;/repf&gt;"
                  + "&lt;rep&gt;" + "N" + "&lt;/rep&gt;"
                  +"&lt;/question&gt;";
  </code></pre>