Safely Turning a Json String into an Object

Safely turning a JSON string into an object

JSON.parse(jsonString) is a pure JavaScript approach so long as you can guarantee a reasonably modern browser.

How to convert the following json string to java object?

No need to go with GSON for this; Jackson can do either plain Maps/Lists:

ObjectMapper mapper = new ObjectMapper();
Map<String,Object> map = mapper.readValue(json, Map.class);

or more convenient JSON Tree:

JsonNode rootNode = mapper.readTree(json);

By the way, there is no reason why you could not actually create Java classes and do it (IMO) more conveniently:

public class Library {
  @JsonProperty("libraryname")
  public String name;

  @JsonProperty("mymusic")
  public List<Song> songs;
}
public class Song {
  @JsonProperty("Artist Name") public String artistName;
  @JsonProperty("Song Name") public String songName;
}

Library lib = mapper.readValue(jsonString, Library.class);

How to convert jsonString to JSONObject in Java

Using org.json library:

try {
     JSONObject jsonObject = new JSONObject("{\"phonetype\":\"N95\",\"cat\":\"WP\"}");
}catch (JSONException err){
     Log.d("Error", err.toString());
}

How to convert an embedded JSON string to a JSON Object in C#

If you know the json response, you can create a model class for it. On VS 2022 you can right click on editor and do paste special Edit --> Paste special --> Paste JSON as Classes. You should get something like below.

public class Model 
{
    public object[] paymentId { get; set; }
    public object[] paymentRequestId { get; set; }
    public object[][][] paymentAmount { get; set; }
    public object[] paymentStatus { get; set; }
    public object[][][] result { get; set; }
}

After using that Model class in your code, your code should look like below

using System.Text.Json;

public Model InquiryPaymentAPI(string id)
{
   
    string paymentInfo = PaymentInquiry.IPayment(id);
    return JsonSerializer.Deserialize<Model>(paymentInfo);

}

How to convert JSON string into List of Java object?

You are asking Jackson to parse a StudentList. Tell it to parse a List (of students) instead. Since List is generic you will typically use a TypeReference

List<Student> participantJsonList = mapper.readValue(jsonString, new TypeReference<List<Student>>(){});

how to convert json string back to an object in Angular 8

You can do it with JSON.parse.

  const obj = JSON.parse(subjects);
  console.log(obj.subject1);  // "A"

Convert JSON String To C# Object

It looks like you're trying to deserialize to a raw object. You could create a Class that represents the object that you're converting to. This would be most useful in cases where you're dealing with larger objects or JSON Strings.

For instance:

  class Test {

      String test; 

      String getTest() { return test; }
      void setTest(String test) { this.test = test; }

  }

Then your deserialization code would be:

   JavaScriptSerializer json_serializer = new JavaScriptSerializer();
   Test routes_list = 
          (Test)json_serializer.DeserializeObject("{ \"test\":\"some data\" }");

More information can be found in this tutorial:
http://www.codeproject.com/Tips/79435/Deserialize-JSON-with-Csharp.aspx

Converting a JSON string into an object with a list of objects inside it - Java

You have to create another class say Output as

import java.util.List;

public class Output {
    public List<Token> getTokens() {
        return tokens;
    }

    public void setTokens(List<Token> tokens) {
        this.tokens = tokens;
    }

    private List<Token> tokens;
}

and then use

Output output = new Gson().fromJson(json, Output.class);

then you can use output to get list of tokens and go further for suggestion etc

Converting a string to JSON object

var obj = JSON.parse(string);

Where string is your json string.

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