sample JSON file Writing and Reading from that file in android

Sample JSON File which is stored in internal memory 

{"STUDENTS":
       [
           {"SID":"123","NAME":"mahesh","ADDRESS":
                                                                     {"STREET":"4-      4","VILLAGE":"velgodu"}
            }
        ]
}


Similar file  in XML for above json:

<STUDENTS>
    <STUDENT>
       <SID>123</SID>
       <NAME>mahesh</NAME>
       <ADDRESS>
           <STREET>4-4</STREET>
           <VILLAGE>velgodu</VILLAGE>    
       </ADDRESS>
     </STUDENT>
</STUDENTS>



Write into internal memory:

    public void write(View v)
    {
         JSONObject obj=new JSONObject();
   
         JSONArray arr=new JSONArray();
   
    try
    {
          JSONObject objsid=new JSONObject();
        objsid.put("SID", "123");
            objsid.put("NAME", "mahesh");
       
        JSONObject objadd=new JSONObject();
            objadd.put("STREET", "4-4");
        objadd.put("VILLAGE", "velgodu");
     
        objsid.put("ADDRESS", objadd);
       
            arr.put(objsid);
       
           obj.put("STUDENTS", arr);
       
        FileWriter write=new FileWriter("storage/sdcard0/jsontext.txt");
        write.write(obj.toString());
           write.flush();
           write.close();
}
     catch (Exception e)
    {
}
}


OUTPUT:

You can see this file in the local storage   in following location     storage/sdcard0/jsontext.txt

{"STUDENTS":
       [
           {"SID":"123","NAME":"mahesh","ADDRESS":
                                                                     {"STREET":"4-      4","VILLAGE":"velgodu"}
            }
        ]
}


Reading JSON File:

 public void read(View v)
 {
    try
    {
    FileReader read=new FileReader("storage/sdcard0/jsontext.txt");
     
         int i=read.read();
    String msg="";
   
    while(i!=-1)
    {
    msg=msg+(char)i;  
    i=read.read();
    }
   
JSONObject obj=new JSONObject(msg);

    JSONArray arr=obj.getJSONArray("STUDENTS");

      int sid=0;
    String sname="";
    String address="";

    for (int j = 0; j  < arr.length(); j ++)
    {
JSONObject objsid=arr.getJSONObject(j);
sid=objsid.getInt("SID");
sname=objsid.getString("NAME");
address=objsid.getString("ADDRESS");

JSONObject objad=new JSONObject(address);
String street=objad.getString("STREET");
String vill=objad.getString("VILLAGE");
/ /Toast.makeText(getApplicationContext(), sid+"\n name:"+sname+"\n                                                   address:"+street+", "+vill, 2000).show();
}
   
}
    catch (Exception e)
    {
// TODO: handle exception
    }
}