I'm parsing json files using JSONArray and JSONObject but I keep getting the error shown in the title. I've downloaded org.json.jar but I don't know what to do next. Currently, org.json.jar sits in the same path as all of the other java files and classes.

Thanks!

Hello there!

So, I was trying to register on 6nomads, and in order to do so, I need to finish test on HackerRank.

HackerRank gives me a simple task like "Create a GET request to X, read json and get specific information from it". Sounds easy enough, right?

Since the UI is terrible, I'm using my own IDE. I write a simple HttpURLConnection mechanism just to get the result. Yup, it's working. I copy it to the HackerRank, nope. Not working. What's wrong? SSL problems. Ok, lets setup SSL to trust all certificates. It's working, phew.

Now to the hard part of the challenge - parse JSON, read data and get specific data. Hoping that the site can work with JSONObject, GSon or Jackson, I started with first. Did everything, ran locally. Perfect. Everything is working as I thought it should be. Time to Copy paste and finish the test... What's this? JSONObject not found? Strange, but OK.

Let's try GSon. Locally it's working as expected. HackerRank gives me a middle finger, saying that it doesn't exist. I don't even try with jackson anymore, I just check if I can use that and nope. Nothing. And now I have 30 minutes left.

After googling, if there're any other ways, I find out about javax.script.ScriptEngineManager which I never used and never heard about. Ok. 30 minutes left, I can do this. And guess what, I did. 5 minutes left, let's do this. "Run tests" and...

javax.script.scriptexception: sun.org.mozilla.javascript.internal.ecmaerror: referenceerror: "Java" is not defined.

I'm furious and I don't know what to do. I find a link in youtube for hackerrank on java, and they were using just javascript code for it, while I was using "Java.asJSONCompatible", because I didn't have much time to get familiar with this ScriptEngineManager. And the end result is - "Come back when you improve your skills". Wow, thank you! Turns out if I don't know how to do something the way YOU want, and expect me to understand it in 30 minutes, I'm bad.

I have been trying to figure out this issue forever now but I can't seem to see what I'm doing wrong. I am using VSCode and added the json library (json-20220329.jar) to my referenced libraries. When I add the jar file the errors in my main file go away regarding JSONObject and JSONArray. Everything looks fine until I try running the code and it says that the "package org.json does not exist." I was wondering if anyone knew what could be the problem.

CODE: (App.java)

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;



import org.json.JSONObject;
import org.json.JSONArray;




public class App {
    public static void main(String[] args) {

        HttpClient client = HttpClient.newHttpClient();
        HttpRequest request = HttpRequest.newBuilder().uri(URI.create("https://jsonplaceholder.typicode.com/albums")).build();
        client.sendAsync(request, HttpResponse.BodyHandlers.ofString())
            .thenApply(HttpResponse::body)
            .thenAccept(System.out::println)
            .join();
    }

    public static String parse(String responseBody) {
        JSONArray albums = new JSONArray(responseBody);
        for (int i = 0; i < albums.length(); i++)
        {
            JSONObject album = albums.getJSONObject(i);
            int id = album.getInt("id");
            int userID = album.getInt("userId");
            String title = album.getString("title");
            System.out.println(id + "\t" + title + "\t" + userID);
        }
        return null;
    }
    
}

ERROR:

App.java:8: error: package org.json does not exist
import org.json.JSONObject;
               ^
App.java:9: error: package org.json does not exist
import org.json.JSONArray;
               ^
App.java:26: error: cannot find symbol
        JSONArray albums = new JSONArray(responseBody);
        ^
  symbol:   class JSONArray
  location: class App
App.java:26: error: cannot find symbol
        JSONArray albums = new JSONArray(responseBody);
                               ^
  symbol:   class JSONArray
  location: class App
App.java:29: error: cannot find symbol
            JSONObject album = albums.getJSONObject(i);
            ^
  symbol:   class JSONObject
  location: class App
5 errors

Hi,

I am using java to create a custom nifi processor and i am trying to use the org.json.simple package to access some information from a json. When i try to compile my code i keep getting the error in the title. below is a my pom.xml:

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 <modelVersion>4.0.0</modelVersion>

 <parent>
     <groupId>1</groupId>
     <artifactId>1</artifactId>
     <version>1</version>
 </parent>

 <artifactId>nifi-processor_stuff-nar</artifactId>
 <version>1</version>
 <packaging>nar</packaging>
 <properties>
     <maven.javadoc.skip>true</maven.javadoc.skip>
     <source.skip>true</source.skip>
 </properties>

 <dependencies>
     <dependency>
         <groupId>1</groupId>
         <artifactId>nifi-processor_stuff-processors</artifactId>
         <version>1</version>
         </dependency>
     <dependency>
         <groupId>com.googlecode.json-simple</groupId>
         <artifactId>json-simple</artifactId>
         <version>1.1.1</version>
     </dependency>
 </dependencies>

</project>

I'm going to start by saying I'm a complete novice in Java. I've started computer science recently and I've got a project where I have to create a project to represent a server using sockets. The server will has to function as a control a library's book record/register. My professor provided a .json file with the book lists which I have to use.

I tried creating the project on VS Code, but after following these steps:

Downloaded the library from the Maven Repository.

Created a lib folder in your project's root directory and move the json-20230303.jar file to this folder.

My code couldn't import the library and this error appeared every time I tried to use the library:

"src\Gerenciador.java:2: error: package org.json does not exist import org.json.JSONArray;"

After a while I thought it would be easier to import the library on the Ide Eclipse, but after creating the project and adding it via the Build Path option, it still didn't work. Even though the library appeared in the Libraries section in the Java Build Path.

This error: "The type org.json.JSONObject is not accessible" keeps appearing.

I don't know how to fix the problem. I think I'm calling on the library wrong, but I don't know how I should do it. If there is any information missing, let me know and I'll provide it, it's my first time asking for help on a programming forum.

Trying to use JSON to store some objects locally for retrieval later. Can't figure out why I'm unable to import json. Doesn't work in vim, doesn't work in vsCode, doesn't work in Eclipse.

Read online that I may need to download the json .jar and add to my build path? When googling "json download" its only scammy virus websites.

I'm on a Mac.

Edit: Added pictures

https://imgur.com/a/FlKwMIF

Thanks for the help.