title: Get element from JsonNode array
body: <p>I have this json:</p>
  
  <pre><code>{
      "text":[
          {"a":1},
          {"b":2}
      ]
  }
  </code></pre>
  
  <p>I have this code:</p>
  
  <pre><code>JsonNode jsonNode = (new ObjectMapper()).readTree(jsonString);
  
  //get first element from "text"
  //this is just an explanation of what i want
  
  String aValue = jsonNode.get("text")[0]
                          .get("a")
                          .asText();
  </code></pre>
  
  <p>How I can done that, without mapping it to an object?</p>
  
  <p>Or do something like <code>JsonNode[] array</code> and <code>array[0]</code> represent <code>a</code> and <code>array[1]</code> represent <code>b</code></p>