Org.Json - Environment Setup (2024)

Table of Contents
System Requirements Step 1: Verify your Java Installation Step 2: Set your Java Environment Step 3: Install Org.Json Library Step 4: Set JSON_JAVA Environment Step 5: Set CLASSPATH Variable FAQs

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This chapter takes you through the process of setting up Org.Json on Windows and Linux based systems. Org.Json can be easily installed and integrated with your current Java environment following a few simple steps without any complex setup procedures. User administration is required while installation.

System Requirements

JDKJava SE 2 JDK 1.5 or above
Memory1 GB RAM (recommended)
Disk SpaceNo minimum requirement
Operating System VersionWindows XP or above, Linux

Let us now proceed with the steps to install Org.Json.

Step 1: Verify your Java Installation

First of all, you need to have Java Software Development Kit (SDK) installed on your system. To verify this, execute any of the two commands depending on the platform you are working on.

If the Java installation has been done properly, then it will display the current version and specification of your Java installation. A sample output is given in the following table.

PlatformCommandSample Output
Windows

Open command console and type −

\>java –version

java version "11.0.11" 2021-04-20 LTS

Java(TM) SE Runtime Environment 18.9 (build 11.0.11+9-LTS-194)

Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.11+9-LTS-194, mixed mode)

Linux

Open command terminal and type −

$java –version

java version "11.0.11" 2021-04-20 LTS

Open JDK Runtime Environment 18.9 (build 11.0.11+9-LTS-194)

Open JDK 64-Bit Server VM (build 11.0.11+9-LTS-194, mixed mode)

Step 2: Set your Java Environment

Set the environment variable JAVA_HOME to point to the base directory location where Java is installed on your machine. For example,

See Also
Creating JSON Configuration Files for Your Deployments  |  App Engine Admin API  |  Google Cloud

Sr.No.Platform & Description
1

Windows

Set JAVA_HOME to C:\ProgramFiles\java\jdk11.0.11

2

Linux

Export JAVA_HOME = /usr/local/java-current

Append the full path of Java compiler location to the System Path.

Sr.No.Platform & Description
1

Windows

Append the String "C:\Program Files\Java\jdk11.0.11\bin" to the end of the system variable PATH.

2

Linux

Export PATH = $PATH:$JAVA_HOME/bin/

Execute the command java -version from the command prompt as explained above.

Step 3: Install Org.Json Library

Download the latest version of org.json jar file from org.json @ MVNRepository. At the time of writing this tutorial, we have downloaded json-20211205, and copied it into C:\>JSON folder.

OSArchive name
Windowsjson-20180813.jar
Linuxjson-20180813.jar
Macjson-20180813.jar

Step 4: Set JSON_JAVA Environment

Set the JSON_JAVA environment variable to point to the base directory location where org.json jar is stored on your machine. Let's assuming we've stored json-20211205.jar in the JSON folder.

Sr.NoOS & Description
1

Windows

Set the environment variable JSON_JAVA to C:\JSON

2

Linux

export JSON_JAVA = /usr/local/JSON

3

Mac

export JSON_JAVA = /Library/JSON

Step 5: Set CLASSPATH Variable

Set the CLASSPATH environment variable to point to the JSON.simple jar location.

Sr.NoOS & Description
1

Windows

Set the environment variable CLASSPATH to %CLASSPATH%;%JSON_JAVA%\json-20211205.jar;.;

2

Linux

export CLASSPATH = $CLASSPATH:$JSON_JAVA/json-20211205.jar:.

3

Mac

export CLASSPATH = $CLASSPATH:$JSON_JAVA/json-20211205.jar:.

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Org.Json - Environment Setup (2024)

FAQs

Org.Json - Environment Setup? ›

Set the CLASSPATH environment variable to point to the JSON. simple jar location. export CLASSPATH = $CLASSPATH:$JSON_JAVA/json-simple-1.1. 1.

Get More Info Here ›
How to set classpath of JSON simple jar? ›

Set the CLASSPATH environment variable to point to the JSON. simple jar location. export CLASSPATH = $CLASSPATH:$JSON_JAVA/json-simple-1.1. 1.

Explore More ›
How to parse JSON in Java using simple JSON? ›

How to parse JSON in Java
  1. JSON Processing in Java : The Java API for JSON Processing JSON. ...
  2. Getting Started : You need to download the json-simple-1.1 jar and put it in your CLASSPATH before compiling and running the below example codes.
  3. Json-Simple API : It provides object models for JSON object and array structures.
Aug 7, 2019

Show Me More ›
What is org.JSON used for? ›

json or JSON-Java is a simple Java based toolkit for JSON. You can use org. json to encode or decode JSON data.

Learn More ›
How to use org.JSON simple JSONObject? ›

Most used methods
  1. get.
  2. <init> Allows creation of a JSONObject from a Map. After that, both the generated JSONObject and the Map ca.
  3. put.
  4. toJSONString. Convert a map to JSON text. The result is a JSON object. If this map is also a JSONAware, JSONAware.
  5. toString.
  6. containsKey.
  7. keySet.
  8. putAll.

Discover More Details ›
How to set environment variable in classpath? ›

On Windows, you configure the CLASSPATH environment variable from the Advanced System Properties in the Control Panel.
  1. Open the Advanced System Properties from the Windows Control Panel.
  2. Click. ...
  3. Under System variables, click. ...
  4. Set the variable name to CLASSPATH and the variable value to the classpath.
  5. Click.

Discover More Details ›
How to include jar in classpath? ›

How to Make a Jar Available to the JVM by adding it to the Classpath:
  1. On the command line, use java's classpath option: % jar -cp game.jar:. ClassWithMainMethod.
  2. Add the jar name via your IDE's (e.g. Drjava's Reources, Extra Classes)
  3. Add the jar to your environment (e.g. using the CLASSPATH environment variable).

See More ›
What is the difference between JSON simple and Gson? ›

simple is a Java toolkit for encoding and decoding JSON text. It's meant to be a lightweight and simple library that still performs at a high level. GSON is a Java library that converts Java Objects into JSON and vice versa.

Learn More ›
How to get JSONArray from org.JSON simple JSON object? ›

Popular methods of JSONArray
  1. <init>
  2. add.
  3. size.
  4. toJSONString. Convert a list to JSON text. The result is a JSON array. If this list is also a JSONAware, JSONAware.
  5. iterator.
  6. addAll.
  7. isEmpty.
  8. toString.

Read On ›
What is the best way to parse JSON? ›

Example - Parsing JSON

Use the JavaScript function JSON.parse() to convert text into a JavaScript object: const obj = JSON.parse('{"name":"John", "age":30, "city":"New York"}'); Make sure the text is in JSON format, or else you will get a syntax error.

Find Out More ›

What is the difference between simple JSON and org JSON? ›

simple package contains important classes like JSONValue, JSONObject, JSONArray, JsonString and JsonNumber. We need to install the json-simple. jar file to execute a JSON program whereas org. json library has classes to parse JSON for Java.

Explore More ›
Is org.JSON open source? ›

JSON License has not been considered an open source license by Apache [1], Debian [2] and FSF [3] and is not OSI approved [4]. Douglas Crockford has relicensed org. json:json java library to be Public Domain starting with version 20220924 [5].

Get More Info ›
How to set classpath for jar file in eclipse? ›

To do this, right-click on your project in the Project Explorer, select "Properties", then "Java Build Path", and click on the "Libraries" tab. From there, you can add the jar file to your project's classpath.

Discover More Details ›
How to set classpath for Servlet API jar in Windows 10? ›

Setting Classpath
  1. Open command prompt.
  2. Type this command, set classpath=”C:\Program Files (x86)\apache-tomcat-7.0.33\lib”;
  3. Thats it.
Jan 5, 2013

Find Out More ›
How to get JSONArray from org.JSON simple jsonobject? ›

Popular methods of JSONArray
  1. <init>
  2. add.
  3. size.
  4. toJSONString. Convert a list to JSON text. The result is a JSON array. If this list is also a JSONAware, JSONAware.
  5. iterator.
  6. addAll.
  7. isEmpty.
  8. toString.

Continue Reading ›
How to read a JSON file from classpath in Java? ›

To read the JSON file in Java, “FileReader()” method is used to read given JSON file. The above code is the file that is used to read. we use the “json. simple” library.

Continue Reading ›
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