Question

How would you extract the data as follows:

I want to extract from this arraylist:

[{itemname=Original, number=12}, {itemname=BBQ, number=23}, {itemname=CatchUp, number=23}]

This array:

{"Original":12,"BBQ":23,"CatchUp":23}

Thanks in advance! Here’s the code used to generate the hashmap:

ArrayList<HashMap<String,String>> list = new ArrayList<HashMap<String,String>>();
for (int i = 0; i<7;i++) {
 HashMap<String,String> map = new HashMap<String,String>();
  map.put("itemname",chips[i]);
  map.put("number",chipentry[i]);
  list.add(map);
 }

Answer 1

It looks like you want to convert it to Json, using google gson http://code.google.com/p/google-gson/ its very easy

“Provide simple toJson() and fromJson() methods to convert Java objects to JSON and vice-versa”

Here is what I mean :

Gson gson = new Gson();
gson.toJson(map); //where map is your map object