Reading from a simple FireBase Database

Question

I\'m having some issues reading from a Firebase Database.

I have a pretty simple layout

{
  \"lot\" : {
    \"lot1\" : \"low\",
    \"lot2\" : \"low\",
          


        

Answer 1

you can use typecast to JSONObject and parse the JSONObject

    JSONObject jsonObject= new JSONObject((Map)dataSnapshot.getValue());

    JSONObject jsonObj= (JSONObject) jsonObject.get("lot");

         for (Object key : jsonObj.keySet()) {
        //based on you key types
        String keyStr = (String)key;
        Object keyvalue = jsonObj.get(keyStr);

        //Print key and value
        System.out.println("key: "+ keyStr + " value: " + keyvalue);
}

if you using java 8 than you use lamada expression.