title: Is there anyway to find a Child by the key value with a Firebase Database?
body: <p>Here is the exported JSON from my Firebase Database:</p>
  
  <pre><code>{
    "users" : {
      "115737970494961514401" : {
        "createDate" : {
          "date" : 5,
          "day" : 1,
          "hours" : 15,
          "minutes" : 19,
          "month" : 11,
          "seconds" : 32,
          "time" : 1480972772566,
          "timezoneOffset" : 360,
          "year" : 116
        },
        "email" : "wang.zhexi@gmail.com",
        "fName" : "Michael",
        "lName" : "Wang"
      }
    }
  }
  </code></pre>
  
  <p>Is there any way I can look for the specific key of <code>115737970494961514401</code>? I am developing in Android Studio.</p>