I have this XML file:

<root>
  <lines>
    <line order="0">
       <content id="A" value="0_A"/>
       <content id="B" value="0_B"/>
       <content id="C" value="0_C"/>
       <content id="D" value="0_D"/>
       <content id="E" value="0_E"/>
     </line>
     <line order="1">
       <content id="A" value="1_A"/>
       <content id="B" value="1_B"/>
       <content id="C" value="1_C"/>
       <content id="D" value="1_D"/>
       <content id="E" value="1_E"/>
     </line>
   </lines>
</root>


From Java I am trying to print values for all elements where ID = "A":

  public void test(){
    javax.xml.xpath.XPathFactory factory = 
javax.xml.xpath.XPathFactory.newInstance();
    javax.xml.xpath.XPath xpath = factory.newXPath();
    javax.xml.xpath.XPathExpression expression;
    String result;
    try {
      expression = xpath.compile("//content[@id =\"A\"]/@value");
      URL url = this.getClass().getClassLoader().getResource("test.xml");
      String path = url.toURI().getPath();
      result = expression.evaluate(new org.xml.sax.InputSource(path));
      System.out.println("result is = " + result);
    } catch (Exception e) {
      e.printStackTrace();
    }
  }


But only:

0_A

is printed. Does "//" not mean that all 'content' elements are chosen?