CODEWITHSUNDEEP
javajson
hamid
hamid

Reputation: 2079

Parsing JSON String

I have this JSON file that is read and stored in a String called jsonString and it looks like this:

{
  "position":1,
  "team_id":10260,
  "home":
  {
    "played":18,
  },
},
{
  "position":2,
  "team_id":8456,
  "home":
  {
     "played":12,
  },
},

Code for parsing:

JSONObject obj = new JSONObject(jsonString);
Iterator it  = obj.keys();

    while(it.hasNext()){
       String s = it.next().toString();
       System.out.print(s + " " + obj.getString(s) + " ");
    }

Output is: position 1 home {"played":18} team_id 10260

So it doesn't read the rest of the file. Can you tell me what is the problem? And also, why home {"played":18} is printed before team_id 10260?

Upvotes: 0

Views: 73

Answers (2)

L. Cornelius Dol
L. Cornelius Dol

Reputation: 64026

The order will be dependent on the type of Map that JSONObject uses; could be indeterminate, or could be by the key's codepoint, or could be in order read, depending on, e.g. HashMap, TreeMap or LinkedHashMap.

Other than that, there are two objects serialized and JSONObject has apparently just stopped after the first one. You may need to wrap the entire input in a set of { }.

Upvotes: 2

Keppil
Keppil

Reputation: 46219

If you look at the way your brackets are organized, you can see that your String actually contains several JSON objects, and the construction stops after the first complete one.

As for your second question, Iterators seldom have a guaranteed order, so you can't make any assumptions about which order the elements will be returned in.

Upvotes: 4

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