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

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.

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 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!

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.

Hello I am having trouble with Java recognizing the existence of a package that comes included in a library that I have downloaded. Before it avoided its existence, vscode was telling me that the "package could not be resolved". I have tried to "clean the workspace", but it does not work. Here is what the terminal shows

Tweets.java:1: error: package tester does not exist

import tester.Tester;

Tweets.java:70: error: cannot find symbol

boolean testIsStartOfThreadByTextTweetValid(Tester t) {

symbol: class Tester

UPDATE* Here is the code I have written

import tester.Tester;
interface Tweet {
public boolean isStartOfThreadBy(String author);
public int totalLikes();
public String unrollThread();
}
class TextTweet implements Tweet{
String author;
String contents;
int likes;
TextTweet(String author, String contents, int likes) {
this.author = author;
this.contents = contents;
this.likes = likes;
}

public boolean isStartOfThreadBy(String author) {
if (this.author.equals(author))
return true;

return false;
}
public int totalLikes(){
return likes;
}
public String unrollThread(){
String s = author + "\n" + likes +"\n" + contents + "\n";
return s;
}
class ReplyTweet implements Tweet{
String contents;
int likes;
String author;

Tweet replyTo;

public ReplyTweet(String contents, int likes, String author, Tweet replyTo){
this.contents = contents;
this.likes = likes;
this.author = author;
this.replyTo = replyTo;
}

public boolean isStartOfThreadBy(String author) {
if (this.author.equals(author) && this.replyTo.isStartOfThreadBy(author)){
return true;
}
return false;
}

public int totalLikes() {
return likes + replyTo.totalLikes();
}
public String unrollThread(){
String s = replyTo.unrollThread() + author + "\n" + likes +"\n" + contents + "\n";
return s;
}

}
public class Tweets {
boolean testIsStartOfThreadByTextTweetValid(Tester t) {
TextTweet f1= new TextTweet("John", "Hello", 5);
return t.checkExpect(f1.isStartOfThreadBy("John"), true);

The jar file that I am trying to get to work is called "tester.jar" and it is within the folder/library I am working with right now for this project.