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how to get same fields from jsonArray

using gson, I parsed data in json format and now I need to extract the value "dt_txt" and their value "temp" from this data and I don’t understand how to pull and paste them into the collection where the key is "dt_txt" and its value is "temp "
The data that I received: https://imgur.com/a/qAxwEri
package testClassPackage;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
public class weatherParse {
public static void main(String[] args) throws IOException {
String sURL = "http://api.openweathermap.org/data/2.5/forecast/?q=Odessa,ua&APPID=518a64dd48106aa542464d3bd94d12ce"; //just a string
// Connect to the URL using java's native library
URL url = new URL(sURL);
URLConnection request = url.openConnection();
request.connect();
// Convert to a JSON object to print data
JsonParser jp = new JsonParser(); //from gson
JsonElement root = jp.parse(new InputStreamReader((InputStream) request.getContent())); //Convert the input stream to a json element
JsonObject rootobj = root.getAsJsonObject(); //May be an array, may be an object.
JsonArray message = rootobj.get("list").getAsJsonArray();
for (int i = 0; i < message.size(); i++) {
System.out.println();
}
System.out.println(message);
}
}

iterate over the JsonArray(message I changed to messages here) as JsonElement and get main object from the element then fetch th corresponding temp.
Map<String,String> data = new HashMap<>();
for(JsonElement lst : messages) {
JsonObject lstObject = lst.getAsJsonObject();
JsonObject el = (JsonObject) lstObject.get("main");
System.out.println(lstObject.get("dt_txt").getAsString() +" "+el.get("temp").getAsString());
data.put(lstObject.get("dt_txt").getAsString(), el.get("temp").getAsString());
}

Java parse a JSONList which is not formatted as an array

I am struggling with this issue and I can't find an answer anywhere. Ihave a .jsonlist file formatted like this :
example.jsonlist
{"op_author":1, "op_name":2}
{"op_author":3, "op_name":4}
{"op_author":5, "op_name":6}
I would like to parse it into a Java object, but I can't find how to do it with Gson or json-simple libraries since it is not formated like a json object.
Here is what I tried so far :
Modele.java
public class Modele {
private String op_author, op_name;
}
JsonListToJava.java
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
public class JsonListToJava {
public static void main(String[] args) throws IOException {
try(Reader reader = new InputStreamReader(JsonListToJava.class.getResourceAsStream("example.jsonlist"), "UTF-8")){
Gson gson = new GsonBuilder().create();
Modele p = gson.fromJson(reader, Modele.class);
System.out.println(p);
}
}
}
But I get this error :
Exception in thread "main" com.google.gson.JsonSyntaxException:
com.google.gson.stream.MalformedJsonException: Use
JsonReader.setLenient(true) to accept malformed JSON at line 2 column ...

JSON libraries are usually designed to work with valid JSONs.
In your case you can read the file line by line, then parse:
try(BufferedReader reader = new BufferedReader(new InputStreamReader(JsonListToJava.class.getResourceAsStream("example.jsonlist"), "UTF-8"))){
Gson gson = new GsonBuilder().create();
Stream<String> lines = reader.lines();
lines.forEach((line) -> {
Model p = gson.fromJson(line, Model.class);
System.out.println(p);
});
}

parse json string using simple-json

I have read the posts that appeared to be the same as my question but I must be missing something. My environment is Eclipse Mars. My JAVA is 1.7 and I have imported json-simple. I simply wish to parse the json that is returned from my web service. I control the web service if I need to modify its output. I see the json in arg[0] as noted below however the Object obj is null as of course is the JSONArray array. I know that I am missing something basic but I am stumped and a bit tired.
Here is the returned json:
[{"$id":"1","NumberID":121183,"PortfolioID":718,"PropertyID":14489,"Adsource":17287,"PlanTypeID":1,"GreetingFile":"HolidayGreeting.wav","PromptFile1":"senior.leasing.first.wav","Accepts1":2,"PromptAction_ID1":1,"PromptFile2":"Default.wav","Accepts2":2,"PromptAction_ID2":1,"PromptFile3":"Default.wav","Accepts3":2,"PromptAction_ID3":1,"PromptFile4":"Default.wav","Accepts4":2,"PromptAction_ID4":1,"PromptFile5":"Default.wav","Accepts5":2,"PromptAction_ID5":1,"HoldMsgFile1":"SpectrumHold.wav","HoldMsgFile2":"Default.wav","Destination1":15197,"Destination2":15024,"Destination3":0,"UIType_ID":16,"RingCount":0,"Enabled":true,"Spanish":false,"HoldMusicFile":"Hold_Music.wav","Template_ID":41,"FrontLineForward":true,"DisclaimerFIle":"1Silence.wav"}]
Here is the parse code employing json-simple:
package parser;
import org.json.simple.*;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
import java.io.*;
public class JsonParser
{
private static JSONObject _jsonInput;
public static void main(String[] args)
{
//TODO
try{
JSONParser parser = new JSONParser();
Object obj = JSONValue.parse(args[0]);
JSONArray array=(JSONArray)obj;
String name = array.get(3).toString();
System.out.println(obj);
}
catch(Exception e){
e.printStackTrace();
}
}
}

The size of the array different than the index used
JSONParser parser = new JSONParser();
Object obj = parser.parse(new FileReader(args[1]));
JSONArray array=(JSONArray)obj;
if (array.size() > 3)
String name = array.get(3).toString();

How to parse items from JSON string in Java

I have this code and I tried to getting items from this JSON string but it failed.
I'm parsing the Json string from remote host.
package selectDB;
import java.io.*;
import java.net.URL;
import java.net.URLConnection;
import java.sql.*;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;
import org.json.simple.*;
public class selectDB
{
public static void main(String[] args) throws IOException, ParseException
{
String s = "";
URL u = new URL("http://192.168.3.1/android/select.php");
URLConnection c = u.openConnection();
InputStream r = c.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(r));
for(String line; (line = reader.readLine()) != null;)
{
s+=line;
}
System.out.println(s);
}
}
the result is
{"result" : "true" , "messages" : [{"id":"866343023633578","latitute":"27","longitude":"31","number_phone":"01113171374"},{"id":"352168066354050","latitute":"27","longitude":"31","number_phone":"202222"},{"id":"50","latitute":"50","longitude":"100","number_phone":"50"},{"id":"110","latitute":"50","longitude":"50","number_phone":"110"},{"id":"120","latitute":"27","longitude":"31","number_phone":"120"},{"id":"130","latitute":"28","longitude":"29","number_phone":"120"},{"id":"140","latitute":"30","longitude":"40","number_phone":"140"},{"id":"800","latitute":"60","longitude":"30","number_phone":"800"},{"id":"353629054230064","latitute":"70","longitude":"80","number_phone":"120"}]}
Please help!

U can use the JsonReader class.
try (JsonReader in = Json.createReader(r)) {
JsonObject jsonObject= in.readObject();
YourObject obj = new YourObject();
obj.setSomething(jsonObject.getString("something", null));
// "something" is the key in the json file, null is the default
// when "something" was not found
} catch (JsonException | ClassCastException ex) {
throw new BadRequestException("Invalid Json Input");
}

you can use the Google Library GSON as well, it is easy to use and self explaining.
https://code.google.com/p/google-gson/
Gson Goals
Provide simple toJson() and fromJson() methods to convert Java objects to JSON and vice-versa
Allow pre-existing unmodifiable objects to be converted to and from JSON
Extensive support of Java Generics
Allow custom representations for objects
Support arbitrarily complex objects (with deep inheritance hierarchies and extensive use of generic types)

Parsing JSON data in Java

I want to parse the some data from this page:
http://www.bbc.co.uk/radio1/programmes/schedules/england/2013/03/1.json
The data I want to parse is the titles however I am unsure how I can extract the data. This is what I have done so far:
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
public class Test
{
public Test() { }
public static void main(String[] args)
{
URL url;
HttpURLConnection connection = null;
InputStream is = null;
JSONParser parser = new JSONParser();
try
{
url = new URL("http://www.bbc.co.uk/radio1/programmes/schedules/england/2013/03/1.json");
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.connect();
is = connection.getInputStream();
BufferedReader theReader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
String reply;
while ((reply = theReader.readLine()) != null)
{
System.out.println(reply);
Object obj = parser.parse(reply);
JSONObject jsonObject = (JSONObject) obj;
String title = (String) jsonObject.get("time");
System.out.println(title);
}
}
catch (Exception e) {
e.printStackTrace();
}
}
}
This just returns null. Can anybody tell me what I need to change? Thanks.

If you read the javadoc of JSONObject#get(String) which is actually HashMap.get(String), it states
Returns: the value to which the specified key is mapped, or null if
this map contains no mapping for the key
Your JSON does not contain a mapping for the key time.
Edit:
If you meant title instead of time, take this extract of the JSON
{"schedule":{"service":{"type":"radio","key":"radio1","title":"BBC Radio 1",...
You need to first get schedule as a JSONObject, then service as a JSONObject, and then title as a normal String value. Apply this differently depending on the type of JSON value.

use something like JSONGen to better understand your data structures, maybe even map your data to the generated objects using google-gson library