JAVA – read Json elements

I have a snippet that returns me a string like that:

String str = “[{“id”:”1″, “name”:”diego”},{“id”:”2″, “name”:”john”}]”;

I don’t know if this is exactly a json object but i need to read the fields (and put them in a structure). I tried without success.

I am using Json-simple-1.1.1.jar

Anyone can help me? Thankyou in advance!