Assuming that you are using org.json, I would iterate over the array as follows:

public static void main(String[] args) {
    String json = "{ \"data\": { \"current_condition\": [ {\"cloudcover\": \"75\", \"humidity\": \"71\", \"observation_time\": \"06:55 AM\", \"precipMM\": \"0.6\", \"pressure\": \"1009\", \"temp_C\": \"32\", \"temp_F\": \"90\", \"visibility\": \"10\", \"weatherCode\": \"116\", \"weatherDesc\": [ {\"value\": \"Partly Cloudy\" } ], \"weatherIconUrl\": [ {\"value\": \"http:\\/\\/cdn.worldweatheronline.net\\/images\\/wsymbols01_png_64\\/wsymbol_0002_su‌​nny_intervals.png\" } ], \"winddir16Point\": \"S\", \"winddirDegree\": \"170\", \"windspeedKmph\": \"9\", \"windspeedMiles\": \"6\" } ]}}";
    try {
        JSONObject jObj = new JSONObject(json);
        JSONObject dataResult = jObj.getJSONObject("data");
        JSONArray jArr = (JSONArray) dataResult.getJSONArray("current_condition");
        for(int i = 0; i < jArr.length();i++) {
            JSONObject innerObj = jArr.getJSONObject(i);
            for(Iterator it = innerObj.keys(); it.hasNext(); ) {
                String key = (String)it.next();
                System.out.println(key + ":" + innerObj.get(key));
            }
        }
    }
    catch (JSONException e) {
        e.printStackTrace();
    }

}

for your example:

{'profiles': [{'name':'john', 'age': 44}, {'name':'Alex','age':11}]}

you will have to do something of this effect:

JSONObject myjson = new JSONObject(the_json);
JSONArray the_json_array = myjson.getJSONArray("profiles");

this returns the array object.

Then iterating will be as follows:

    int size = the_json_array.length();
    ArrayList<JSONObject> arrays = new ArrayList<JSONObject>();
    for (int i = 0; i < size; i++) {
        JSONObject another_json_object = the_json_array.getJSONObject(i);
            //Blah blah blah...
            arrays.add(another_json_object);
    }

//Finally
JSONObject[] jsons = new JSONObject[arrays.size()];
arrays.toArray(jsons);

//The end...

You will have to determine if the data is an array (simply checking that charAt(0) starts with [ character).

Hope this helps.

check below code.

final JSONParser parser = new JSONParser();
final File file = new File("/Users/amzadhossain/Documents/jsonfile2.json");
final FileReader reader = new FileReader(file);
final JSONObject jsonObject = (JSONObject) parser.parse(reader);
final JSONArray languages = (JSONArray) jsonObject.get("languages");
List<Map<String, String>> lstmap = new ArrayList<Map<String, String>>();
        Iterator<String> iter = null;
        for (int i = 0; i < languages.size(); i++) {
            JSONObject firstarr = (JSONObject) languages.get(i);
            iter = firstarr.keySet().iterator();            
            while(iter.hasNext()){
                final Map<String, String> map = new HashMap<String, String>();
                String key = (String)iter.next();
                Object value = firstarr.get(key); 
                map.put(key, value.toString());
                lstmap.add(map);
               System.out.println("key is "+key + " and value is " + value);
            }

        }
        for (Map<String, String> map : lstmap){
            for (Map.Entry<String, String> entry : map.entrySet()) {
                System.out.println("Key : " + entry.getKey() + " Value : " + entry.getValue());
            }
        }

Here is some code using java 6 to get you started:

CopyJSONObject jo = new JSONObject();
jo.put("firstName", "John");
jo.put("lastName", "Doe");

JSONArray ja = new JSONArray();
ja.put(jo);

JSONObject mainObj = new JSONObject();
mainObj.put("employees", ja);

Edit: Since there has been a lot of confusion about put vs add here I will attempt to explain the difference. In java 6 org.json.JSONArray contains the put method and in java 7 javax.json contains the add method.

An example of this using the builder pattern in java 7 looks something like this:

CopyJsonObject jo = Json.createObjectBuilder()
  .add("employees", Json.createArrayBuilder()
    .add(Json.createObjectBuilder()
      .add("firstName", "John")
      .add("lastName", "Doe")))
  .build();