How do I create a JSON Array?

Question

Hi I want to create a JSON array.

I have tried using:

JSONArray jArray = new JSONArray();
  while(itr.hasNext()){
    int objId = itr.next();
jArray.put(objId, odao.getObjectName(objId));
  }
results = jArray.toString();

Note: odao.getObjectName(objId) retrieves a name based on the "object Id" which is called objId.

However I get a very funny looking array like

[null,null,null,"SomeValue",null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,"AnotherValue",null,null,null,null,null,null,null,null,null,null,"SomethingElse","AnotherOne","LastOne"]

With only "LastOne" being displayed when I retrieve it using jQuery.

The Array SHould look like

{["3":"SomeValue"],["40":"AnotherValue"],["23":"SomethingElse"],["9":"AnotherOne"],["1":"LastOne"]}

The numbers aren't showing up at all for some reason in the array that I am getting.

Answer 1

For your quick Solution:

JSONArray jArray = new JSONArray();
while (itr.hasNext()) {
   JSONObject json = new JSONObject();
   int objId = itr.next();
   json.put(Integer.toString(objId), odao.getObjectName(objId));
   jArray.put(json);
}

results = jArray.toString();

Based on T. J. Crowder's response, my solution does this:

[{"3":"SomeValue"},
 {"40":"AnotherValue"},
 {"23":"SomethingElse"},
 {"9":"AnotherOne"},
 {"1":"LastOne"}
]

Refer to Jim Blackler's comment of what you're doing wrong.