create json-java - Brave Search

How to create JSON Object using String?

stackoverflow.com › questions › 20117148 › how-to-create-json-object-using-string

org.json.JSONArray may be what you want.

String message;
JSONObject json = new JSONObject();
json.put("name", "student");

JSONArray array = new JSONArray();
JSONObject item = new JSONObject();
item.put("information", "test");
item.put("id", 3);
item.put("name", "course1");
array.put(item);

json.put("course", array);

message = json.toString();

// message
// {"course":[{"id":3,"information":"test","name":"course1"}],"name":"student"}

Answer from srain on Stack Overflow

jsonformatter.org › json-stringify-online

JSON Stringify Online using JSON.Stringify()

JSON Stringify Online helps convert string value to JSON String using JSON.Stringify(). It's very simple and easy way to create JSON String value and share Stringify data.

stackoverflow.com › questions › 20117148 › how-to-create-json-object-using-string

java - How to create JSON Object using String? - Stack Overflow

org.json.JSONArray may be what you want.

String message;
JSONObject json = new JSONObject();
json.put("name", "student");

JSONArray array = new JSONArray();
JSONObject item = new JSONObject();
item.put("information", "test");
item.put("id", 3);
item.put("name", "course1");
array.put(item);

json.put("course", array);

message = json.toString();

// message
// {"course":[{"id":3,"information":"test","name":"course1"}],"name":"student"}

In contrast to what the accepted answer proposes, the documentation says that for JSONArray() you must use put(value) no add(value).

https://developer.android.com/reference/org/json/JSONArray.html#put(java.lang.Object)

(Android API 19-27. Kotlin 1.2.50)

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reddit.com › r/learnjava › generate example json from java classes

r/learnjava on Reddit: Generate example JSON from Java classes

February 8, 2023 -

TL;DR: Looking for a tool that can generate example-json from POJOs

We use an event-driven architecture and dispatch the event-payloads as json-strings. We also have to document the structure of these payloads and currently we do this by typing json-examples manually.

The payloads are basically just POJOs with a constructor, getters and setters.

I'm looking for a tool to streamline the documentation-process! Is there a software that can generate example json from Java classes?

I'm really thankful for any recommendation!

Jackson? It is the built in for SpringBoot. https://www.baeldung.com/jackson-object-mapper-tutorial

dadroit.com › string-to-json

Online String to JSON Converter

Convert String files to JSON files online.

attacomsian.com › blog › jackson-create-json-object

How to create a JSON Object using Jackson

October 14, 2022 - A short tutorial to learn how to create a JSON object using Jackson API.

baeldung.com › home › json › introduction to json-java (org.json)

Introduction to JSON-Java | Baeldung

June 20, 2025 - JSON (JavaScript Object Notation) is a lightweight data-interchange format, and we most commonly use it for client-server communication. Furthermore, it’s both easy to read/write and language-independent. A JSON value can be another JSON object, array, number, string, boolean (true/false), or null. In this tutorial, we’ll see how to create, manipulate, and parse JSON using one of the available JSON processing libraries in Java – the JSON-Java library, also known as org.json.

reddit.com › r/javahelp › can anyone tell me how to construct a custom json request in java

r/javahelp on Reddit: can anyone tell me how to construct a custom json request in java

April 22, 2021 -

below is a copy of the string i want to edit and send but when i try to use a varible in the string i get a error ( string litral ) i think its because i not formating the escape char correcly but im lost can any show me how to use escape chars with in a string

httpPostRequests testing = new httpPostRequests("{\"jsonrpc\":\"2.0\",\"method\":\"getaccount\",\"params\":{\""\account\":1920},\"id\":123}","http://localhost:4003");

It's better that you not use a string and have variables in them. The best way to do it is have a class which resembles the structure of your json and then create an object of that class by setting the values you were setting for the json. Ex. class JsonRequest { String jsonrpc; String method; Map params; Integer id; } This resembles the structure of your request ( I have kept params as a map so you can add more params ) And after creating a class , you can instantiate an object with the required values. Ex. Map params = new HashMap<>(); params.put("account", 1920); JsonRequest jr = new JsonRequest("2.0", "getAccount", params, 123) Assuming that you have an all arguments constructor After setting the values you can use libraries like Gson or ObjectMapper to convert this object to json string; You can just google this step.

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codesignal.com › learn › courses › handling-json-files-with-java › lessons › creating-and-writing-json-data-with-java-using-jackson

Creating and Writing JSON Data with Java

In previous lessons, you learned how to parse JSON files in Java and explore JSON's hierarchical structure. Now, we'll focus on constructing JSON objects and writing them to files. In this lesson, you'll discover how to create JSON objects using Java classes and serialize them using the Jackson ...

Liquid Technologies

liquid-technologies.com › online-json-to-schema-converter

Free Online JSON to JSON Schema Converter

The Free Community Edition of Liquid Studio comes with an advanced JSON Editor, packed with many helpful features including JSON schema creation.

medium.com › @benpourian › how-to-create-a-java-object-from-a-json-object-c47c08b030c5

How to create a Java Object from a JSON object | by Benjamin Pourian | Medium

October 25, 2018 - This will be a very brief guide to creating a Java object from a JSON object using the popular gson` google library.

mkyong.com › home › java › write json to a file with jackson

Write JSON to a file with Jackson - Mkyong.com

April 25, 2024 - package com.mkyong.json.jackson.tips; import com.fasterxml.jackson.databind.ObjectMapper; import com.mkyong.json.model.Person; import java.io.File; import java.io.IOException; public class WriteJsonToFileExample { public static void main(String[] args) { Person person = new Person("mkyong", 42); ObjectMapper om = new ObjectMapper(); try { // create a file object File file = new File("person.json"); // write JSON to a File om.writeValue(file, person); System.out.println("Filed saved to: " + file.getAbsolutePath()); } catch (IOException e) { throw new RuntimeException(e); } } } Output ·

geeksforgeeks.org › java › how-to-generate-json-with-jsongenerator-in-java

How to Generate JSON with JsonGenerator in Java? - GeeksforGeeks

June 8, 2022 - The JsonObjectBuilder interface acts as a builder for creating JsonObject models from scratch. This interface initializes an empty JSON object model and provides methods to add name/value pairs to the object model and to return the resulting object.

tutorialspoint.com › how-to-write-create-a-json-file-using-java

How to Write/create a JSON file using Java?

May 7, 2025 - In this article, we will learn to write/create a JSON file using Java. JSON has become the standard for data exchange for any kind of application. Java also has a collection of libraries helpful in creating and storing JSON files. JSON JSON or JavaSc

oracle.com › java › technical details

Java API for JSON Processing

Listing 2. JSON representation of searching Facebook public posts · We can use the object model API to get names and their public posts about the term java. In the Listing 3, lines 1 through 3 lines create JsonReader; line 5 creates JsonObject for the results; line 7 loops over each result; and lines 8 through 11 get the name of the person who posted, get the public post, and prints them.

docs.oracle.com › javaee › 7 › api › javax › json › JsonObjectBuilder.html

JsonObjectBuilder (Java(TM) EE 7 Specification APIs)

javax.json · public interface JsonObjectBuilder · A builder for creating JsonObject models from scratch. This interface initializes an empty JSON object model and provides methods to add name/value pairs to the object model and to return the resulting object.

Jsonschema2pojo

jsonschema2pojo.org

jsonschema2pojo

Generate Plain Old Java Objects from JSON or JSON-Schema.

forum.camunda.io › camunda 7 topics › discussion & questions

Creating JSON object in JAVA client to post into REST API - Discussion & Questions - Camunda Forum

April 22, 2016 - Hi, I am writing a java client that makes REST calls to Camunda. I understand the following code should allow me to create JSON string that is correctly formatted so that it can be posted into the API ( as per the variable format we see here: https://docs.camunda.org/manual/7.4/reference/rest/process-definition/post-start-process-instance/#request ). My example code is this package sandbox.camunda; import org.camunda.bpm.engine.variable.Variables; import org.camunda.bpm.engine.variable.valu...

JSON is a text format that is completely language independent but uses conventions that are familiar to programmers of the C-family of languages, including C, C++, C#, Java, JavaScript, Perl, Python, and many others.

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Programmatic Generation of JSON Schemas in Java | Baeldung

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crunchify.com › json tutorials › how to write json object to file in java? simplifying json file handling in java

How to write JSON object to File in Java? Simplifying JSON File Handling in Java • Crunchify

August 17, 2023 - Before we dive into the code, make sure you have a Java development environment set up. You’ll also need the json-simple library, which provides a straightforward way to work with JSON data. You can include the library in your project through your preferred build tool or by manually adding the JAR file. Our goal is to create a JSON object representing some basic information.