Json : Content Parsing error

Question

I have json file like this

[
     {

       "topic": "Example1", 
       "ref": {
            "1": "Example Topic", 
            "2": "Topic"
        }, 
       "contact": [
            {
                "ref": [
                    1
                ], 
                "corresponding": true, 
                "name": "XYZ"
            }, 
            {
                "ref": [
                    1
                ], 
                "name": "ZXY"
            }, 
            {
                "ref": [
                    1
                ], 
                "name": "ABC"
            }, 
            {
                "ref": [
                    1, 
                    2
                ], 
                "name":"BCA"
            }
        ] , 

        "type": "Presentation"
     }
]

I want to parse the ref array. I tried this. But showing error.

jsonArray.getJSONObject(index).getJSONArray("ref").getJSONObject(index).toString()

Now my question is

1) What is the correct way to parse that array's content.

When you're just learning, especially, do not "daisy-chain" operations together like that. Make each method call a separate statement and assign the result to a temp (which is then used in the next statement). This makes it much easier to debug and easier to edit when you discover you need to rearrange things. — Hot Licks
– Hot Licks, Commented Jul 17, 2013 at 21:31
And go to json.org to see the (very simple) JSON syntax spec. It takes all of 5 minutes to learn, and knowing it makes processing JSON much easier. — Hot Licks
– Hot Licks, Commented Jul 17, 2013 at 21:33

JB Nizet · Accepted Answer · 2013-07-17 20:58:46Z

3

The whole JSON is an array (starts with [). Its first element is an object (starts with {). This object has an attribute "ref". Its value is an object (starts with {).

So, to get this object, you need

jsonArray.getJSONObject(index).getJSONObject("ref")

answered Jul 17, 2013 at 20:58

JB Nizet

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Comments

user2579475 · Accepted Answer · 2013-07-17 21:37:04Z

1

I solved it By

 JSONObject arJS = jsonArray.getJSONObject(index).getJSONObject("ref");
 for(int counter = 1 ; jo<=jsonArray.getJSONObject(index).getJSONObject("ref").length();counter++){

               String value = arJS.getString(String.valueOf(counter));

           }

edited Jul 17, 2013 at 21:37

answered Jul 17, 2013 at 20:56

user2579475

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