Download Org.json.simple Jar
Shawana Godinho
Most important class in json-simple API is org.json.simple.JSONObject. We create instance of JSONObject and put key-value pairs into it. JSONObject toJSONString method returns the JSON in String format that we can write to file. For writing list to a JSON key, we can use org.json.simple.JSONArray.
For reading JSON from file, we have to use org.json.simple.parser.JSONParser class. JSONParser parse method returns JSONObject. Then we can retrieve values by passing key names. Below is json-simple example to read JSON from file.
After redesigning the library to be backwards compatible it was decided that support for java 2 to 6 would be dropped in favor of generics (thus a 2.* version) as it was the most avidly requested feature. The library was also written in the package org.json.simple so a maven artifact under the org.json.simple groupId made sense. Once all that work was done it was up to the merge with upstream to take over the rest. However, after many emails and external issues only the first part went according to plan. So, the project is now maintained by Clifton Labs and the maven artifacts are now published under the groupId 'com.github.cliftonlabs' (formerly 'com.googlecode.json-simple').
Exception in thread "main" java.lang.ClassCastException: class org.json.simple.JSONArray cannot be cast to class org.json.simple.JSONObject (org.json.simple.JSONArray and org.json.simple.JSONObject are in unnamed module of loader 'app')
at jsonfiles.ReadingJSON.main(ReadingJSON.java:18)
Indeed, multiple types are being stored within an array structure, and the language is clearly Java, but the array is not the array implementation provided by the Java language -- it is from the org.json.simple library. That was what I did not figure out from earlier context. Thanks so much for clarifying it for me.
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