Question

I need to parse an input for each value. Input size is not static

{"ruleId": 1000000,  "Group": "foo",  "Formula":    {"Aggregate": "foo",    "fields": 
    ["foo", "foo"],    "Children": 
    {"child": 
      []
    }   } }

Where each child can contain a list of Formulas, and each Formula can have a Children

What would be the best way to parse though this so that I can get every value and dig recursively into ‘child’ when needed?

Split, Regex, Tokenizer?

Answer 1

Don’t parse it yourself use existing libraries like:

Google Gson: http://code.google.com/p/google-gson/

you can read more about different json parsers for java here:
https://stackoverflow.com/questions/338586/a-better-java-json-library