how to wirte json format
JSONArray jArray = new JSONArray();
Countries count = new Countries();
count.setNum1(-90.0715);
count.setNum2(29.9510);
ArrayList<Countries> ll_conn = new ArrayList<>();
ll_conn.add(count);
for (int i = 0; i< ll_conn.size(); i++){
try {
jArray.put(ll_conn.get(i).getNum1());
jArray.put(ll_conn.get(i).getNum2());
} catch (JSONException e) {
e.printStackTrace();
}
}
JSONObject jsonObject2 = new JSONObject();
ArrayList<Countries> list2 = new ArrayList<>();
Countries countries = new Countries();
countries.setType("Point");
list2.add(countries);
for (int i = 0; i < list2.size(); i++){
try {
jsonObject2.put("type",list2.get(i).getType());
jsonObject2.put("coordinates",jArray);
} catch (JSONException e) {
e.printStackTrace();
}
}
JSONObject jsonObject1 = new JSONObject();
JSONArray jsonArray1 = new JSONArray();
Countries countries1 = new Countries();
countries1.setType("Feature");
ArrayList<Countries> ll_count1 = new ArrayList<>();
ll_count1.add(countries1);
for (int i = 0; i < ll_count1.size(); i++){
try {
jsonObject1.put("type",ll_count1.get(i).getType());
jsonObject1.put("geometry",jsonObject2);
} catch (JSONException e) {
e.printStackTrace();
}
}
for (int i = 0; i <3; i++){
jsonArray1.put(jsonObject1);
}
JSONObject jsonObject = new JSONObject();
Countries obj_coun = new Countries();
ArrayList<Countries> ll_Cout = new ArrayList<>();
obj_coun.setType("FeatureCollection");
//add all data respone from object countries into ArrayList type of Countries
ll_Cout.add(obj_coun);
for (int i = 0; i < ll_Cout.size(); i++) {
try {
jsonObject.put("type", ll_Cout.get(i).getType());
jsonObject.put("features",jsonArray1);
} catch (JSONException e) {
e.printStackTrace();
}
}
Log.d(">>>", "jsonObject: "+jsonObject);
==============OutPut================================================
{"type":"FeatureCollection","features":[{"type":"Feature","geometry":{"type":"Point","coordinates":[-90.0715,29.951]}},{"type":"Feature","geometry":{"type":"Point","coordinates":[-90.0715,29.951]}},{"type":"Feature","geometry":{"type":"Point","coordinates":[-90.0715,29.951]}}]}