How can I retrieve "B2" from the following? JSONArray?
JSONArray o = new JSONArray();
for(int i = 0; i < 3; i++) {
List<Object> list = new ArrayList<Object>();
list.add("B" + i);
list.add(100+i);
o.put(list);
}
I'm thinking it's something like the following, although this isn't at all correct.
o.get(2)[0]
The problem is that you're using put(), which:
Put a value in the JSONArray, where the value will be a JSONArray which is produced from a Collection.
So, this will add an array into your array. Something like this:
[
[
"B1", "B2"
]
]
If this was intended, then you'll first need to get the inner array and then it's second entry:
o.getJSONArray(0).getInt(1);
Otherwise, if you want to fill your existing JSONArray o with the entries from the List, you'll want to use the JSONArray(Collection)-constructor.
You've created an array of bidimensional arrays. The following code snippet should work:
o.getJSONArray(2).getString(0);
o.getInt(2). See json.org/javadoc/org/json/JSONArray.html#getInt%28int%29o.getJSONArray(2).getString(0)