I assume that you have already downloaded the JSON library. If not, you can download it from here: Maven repo

Go to File -> Project Structure... Then click on the Library tab on the left-hand side. You can add or remove any libraries.

Answer from Bao Pham on Stack Overflow
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YouTube
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Creating JSON Files Using org.json in Java - YouTube
In this video, we'll be creating a JSONObject with some data in it using org.json. I'm using IntelliJ IDEA with the Codota plugin that provides AI based code...
Published ย  April 28, 2023
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java - What is the right way to add json-simple library on intellij? - Stack Overflow
It's been awhile since I programmed in java. I'm trying to add json-simple on intellij but I can't figure out what is wrong ( almost moving back to eclipse) The json-simple jar file is at the same More on stackoverflow.com
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How do I put .jar files directly into my project rather than using them as external libraries?
Honestly if you want to do Java dev just learn to love maven or Gradle. More on reddit.com
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December 2, 2021
java - Correct way to add external jars (lib/*.jar) to an IntelliJ IDEA project - Stack Overflow
When creating a new Java project in IntelliJ IDEA, the following directories and files are created: ./projectname.iml ./projectname.ipr ./projectname.iws ./src/ I want to configure IntelliJ IDEA to More on stackoverflow.com
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How to include images in JAR file?

put those images into a resource root, right click on a folder and "Mark Directory as..."

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JSON | IntelliJ IDEA Documentation
IntelliJ IDEA by default treats files with the json5 extension as JSON5 files and supports this new syntax in them. In the Settings dialog (Ctrl+Alt+S) , go to Editor | File Types. In the Recognized File Types list, select JSON5.
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How to import dependencies and export jar files in IntelliJ IDEA - YouTube
In this video, we will demonstrate how to import dependencies in Java using IntelliJ IDEA. We will build a program to parse a JSON embedded object into its c...
Published ย  June 10, 2024
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CData
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How to connect to JSON Services from IntelliJ
June 20, 2020 - Follow the steps below to add the driver JAR and define connection properties required to connect to JSON services. In the Data Sources window, right-click and then click Add Data Source -> DB Data Source.
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Libraries | IntelliJ IDEA Documentation
January 28, 2026 - In the main menu, go to File | Project Structure Ctrl+Alt+Shift+S and locate the library that you want to change. Right-click the necessary library and select Copy to Project Libraries or Add to Modules. IntelliJ IDEA allows you to temporarily exclude library items in order to increase IDE performance. You can exclude folders, archives (for example, JARs) and folders within archives.
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CopyProgramming
copyprogramming.com โ€บ howto โ€บ importing-json-library-into-intellij-idea
Java: Integrating the JSON library in IntelliJ IDEA
August 1, 2021 - Select the directory containing the json.jar file and hit enter. Apply the changes and wait for synchronization. ... In case you encounter difficulties with compiling, consider inserting implementation 'org.json:json:20171018' into the build.gradle file's dependencies section. This solution has proven to be effective for me. Get object as JSON in IntelliJ Idea from debugger, Add ...
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How to Add Jar file on Java project in Intellij IDEA | Add JAR File to an IntelliJ IDEA Project - YouTube
Hello friends.I am Lipsa Patra. I am a software engineer. Welcome to my youtube channelEasy 2Excel .In this video we will learn how we can add/remove externa...
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Baeldung
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Add External JAR File to IntelliJ Project | Baeldung
February 28, 2025 - We can add a JAR file to the projectโ€™s classpath through the Project Structure > Modules > Dependencies section. Then, we can expand the External Libraries section in the Project view to verify the JAR file inclusion in our IntelliJ project.
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GeeksforGeeks
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How to Add External JAR File to an IntelliJ IDEA Project? - GeeksforGeeks
July 23, 2025 - Step 1: Open your installed IntelliJ IDEA Project and go to the File > Project Structure as shown in the image below. Step 2: After step 1 Select Modules at the left panel and select the Dependencies tab as shown in the below image.
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CodingTechRoom
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How to Create a JAR File in IntelliJ IDEA: A Step-by-Step Guide - CodingTechRoom
August 24, 2023 - Navigate to `File` -> `Project Structure` and ensure that your modules are set up correctly. Open the `File` menu and select `Project Structure` (or press `Ctrl + Alt + Shift + S`). Under the `Artifacts` section, click `+` to add a new artifact and select `JAR` -> `From modules with dependencies`.
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W3Docs
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Correct way to add external jars (lib/*.jar) to an IntelliJ IDEA project
Alternatively, you can add the JAR file to the classpath of the project by placing it in the lib directory at the root of the project. Then, IntelliJ IDEA will automatically detect the JAR file and add it to the classpath of the project.
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JetBrains
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Build JSON - IntelliJ IDEs Plugin | Marketplace
January 14, 2026 - Create toJson() method in java file automatically use alt+insert - toJson().
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JetBrains
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Create new .json file in specific directory โ€“ IDEs Support (IntelliJ Platform) | JetBrains
June 22, 2023 - String pathToFile = "/Users/amirsharif/AndroidStudioProjects/test2/app/src/main/res/layout/activity_main.xml"; VirtualFile virtualFile = LocalFileSystem.getInstance().findFileByPath(pathToFile); FileTemplate fileTemplate = FileTemplateManager.getInstance(myProject).getInternalTemplate("TokenActivity"); resourceDirectory = psiManager.findDirectory(virtualFile); CreateFileFromTemplateAction.createFileFromTemplate(fileTemplate, resourceDirectory); I tried to add the xml file by using the upper code, but I got an error that is said " can not resolve method createFileFromTemplate. ... No problem, feel free to ask your questions any time you need. There exists no such method signature as you tried to use, that's correct. IntelliJ community is an open-source product, so you may always consult source code in case of doubt.
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W3Docs
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How to build JARs from IntelliJ properly?
September 8, 2023 - Open your project in IntelliJ IDEA. Select the project in the Project pane on the left. Click on the "File" menu and select "Project Structure". In the "Project Structure" window, select "Artifacts" on the left.
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Micro Focus
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Configuring Your IDE - SV Lab - ADM Help Centers
Click the '+' and select the corresponding JavaDoc JAR file from the lib/ directory. ... Repeat the above steps each time you re-import a Maven project. ... This section describes how to register the JSON schema of the sv-lab.json files in IntelliJ.