Org.Json - JSONException Handling

Utility classes of org.json throws JSONException in case of invalid JSON. Following example shows how to handle JSONException.

Example - Handling JSONException

JsonDemo.java

package com.tutorialspoint;

import org.json.JSONException;
import org.json.XML;

public class JsonDemo {
   public static void main(String[] args) {
      try {
         //XML tag name should not have space.
         String xmlText = "<Other Details>null</Other Details>";
         System.out.println(xmlText);

         //Convert an XML to JSONObject
         System.out.println(XML.toJSONObject(xmlText));
      } 
      catch(JSONException e){   
         System.out.println(e.getMessage());
      }
   }
}

Output

<Other Details>null</Other Details>
Misshaped close tag at 34 [character 35 line 1]

Example - Throwing JSONException

JSONException is a Runtime Exception and is not required to be declared as throws statement. But we can throw it to make code clearer and cleaner.

JsonDemo.java

package com.tutorialspoint;

import org.json.JSONException;
import org.json.XML;

public class JsonDemo {
   public static void main(String[] args) throws JSONException {
         //XML tag name should not have space.
         String xmlText = "<Other Details>null</Other Details>";
         System.out.println(xmlText);

         //Convert an XML to JSONObject
         System.out.println(XML.toJSONObject(xmlText));
   }
}

Output

<Other Details>null</Other Details>
Exception in thread "main" org.json.JSONException: Misshaped close tag at 34 [character 35 line 1]
    at org.json.JSONTokener.syntaxError(JSONTokener.java:568)
    at org.json.XML.parse(XML.java:321)
    at org.json.XML.parse(XML.java:443)
    at org.json.XML.toJSONObject(XML.java:777)
    at org.json.XML.toJSONObject(XML.java:863)
    at org.json.XML.toJSONObject(XML.java:662)
    at com.tutorialspoint.JsonDemo.main(JsonDemo.java:13)