how can i retrive or get Yahoo Weather API from JSON object channel -> item -> forecast -> {day1 } {day2} {day3 } {day4} {day5 }

Question

I tried to reach to the forecast data but failed, NullPointerException and sometimes crash. because i fail to reach or retrieve data from item -> forecast -> {data} .

At Item class:

    condition = new Condition();
    condition.jsonPopulate("condition");

At Condition Class :

    void jsonPopulate(data){
        temp = data.optString("temp");
    }

I got data at condition class successfully,

But why i cant do the same for forecast since forecast and condition are siblings.

Since forecast has array object so I tried like below retrieve data :

Context Item class sending object of forecast Code of Item class like below.

    forecast= new Condition();
    forecast.jsonPopulate("forecast");

Context Forecast Class when retrive data from forecast object Code of forecast class like below.

    private String  day;
    private String high;
    private String low;
    ArrayList<ForecastDetails>fdetails;

    public void jsonPopulate(data){
    for(i=0; i<data.length(); i++){
            day = data.optString("day");
            high = data.optString("high");
            low = data.optString("low");

            fdetails.add(day);
            fdetails.add(high);
            fdetails.add(low);
        }

    }

and try to keep in a ArrayList<ForecastDetails>; but failed, anyone has can suggest me about how to retrieve forecast data from item object of Yahoo weather.

Answer 1

JSONObject d = new JSONObject(data);
    for(i=0; i<d.length(); i++)
    {
        day = d.getString("day");
            high = d.getString("high");
            low = d.getString("low");

            fdetails.add(day);
            fdetails.add(high);
            fdetails.add(low);
    }