JSONis one of the widely useddata exchangeformats and is alightweightand>language independent.json.simpleis a lightweight JSON processing library that can be used toreadandwriteJSON files, can be used toencodeordecodeJSON text, and is fully compliant with theJSON specification(RFC4627strong>). In order to read the JSON file, we need to download thejson-simple.jarfile and set the path to execute it.
import java.io.*; import java.util.*; import org.json.simple.*; import org.json.simple.parser.*; public class JSONReadFromTheFileTest { public static void main(String[] args) { JSONParser parser = new JSONParser(); try { Object obj = parser.parse(new FileReader("/Users/User/Desktop/course.json")); JSONObject jsonObject = (JSONObject)obj; String name = (String)jsonObject.get("Name"); String course = (String)jsonObject.get("Course"); JSONArray subjects = (JSONArray)jsonObject.get("Subjects"); System.out.println("Name: " + name); System.out.println("Course: " + course); System.out.println("Subjects:"); Iterator iterator = subjects.iterator(); while (iterator.hasNext()) { System.out.println(iterator.next()); } } catch(Exception e) { e.printStackTrace(); } } }
Name: Raja Course: MCA Subjects: subject1: MIS subject2: DBMS subject3: UML
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