ConvertXMLToJson.java

import org.json.JSONObject;  
import org.json.XML;  
import java.io.*;  
public class ConvertXMLToJson{  
    public static void main(String[] args) throws Exception   
  {  
      String fileName = "D:\\temp.json";
      try  
      {  
          File file = new File ("D:\\example.xml");  
          InputStream inputStream = new FileInputStream(file);  
          StringBuilder builder =  new StringBuilder();  
          int ptr = 0;  
          while ((ptr = inputStream.read()) != -1 )  
          {  
              builder.append((char) ptr); 
          }  

          String xml  = builder.toString();  
          JSONObject jsonObj = XML.toJSONObject(xml);   
          System.out.println(jsonObj.toString()); 
          System.out.println(jsonObj.toString().split(",").length);
     
          // Assume default encoding.
          FileWriter fileWriter = new FileWriter(fileName);

          // Always wrap FileWriter in BufferedWriter.
          BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);

          // Always close files.
          for(int i= 0 ;i < jsonObj.toString().split(",").length; i ++) {
             System.out.println(jsonObj.toString().split(",")[i]);
             bufferedWriter.write(jsonObj.toString().split(",")[i]);
             bufferedWriter.write("\n");
          }
          bufferedWriter.close();
      }
        catch(IOException ex) 
        {
             System.out.println("Error writing to file '"+ fileName + "'");
        }
      	catch(Exception e)  
          {  
              e.printStackTrace();  
          }
  }  
}

example.xml

<?xml version="1.0"?>
<company>
<Details>

		<fname>kapilraj</fname>
		<lastname>Chouhan</lastname>
		<nickname>kappu</nickname>
		<salary>1000</salary>
		<address>Delhi NCR</address>
		<pin>458990</pin>
</Details>
<Details>
		<firstname>nitin</firstname>
		<lastname>Chouhan</lastname>
		<nickname>nit</nickname>
		<salary>1000</salary>
		<address>Delhi NCR</address>
		<pin>458990</pin>
</Details>


</company>