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How do I iterate over a JSON object?

How do I iterate over a JSON object?

Try this:

  1. jsonObject = new JSONObject(contents.trim());
  2. Iterator keys = jsonObject.keys();
  3. while(keys.hasNext()) {
  4. String key = keys.next();
  5. if (jsonObject.get(key) instanceof JSONObject) {
  6. // do something with jsonObject here.
  7. }
  8. }

How do you iterate a JSONArray?

getJSONObject(“JObjects”); JSONArray getArray = getObject. getJSONArray(“JArray1”); for(int i = 0; i < getArray. length(); i++) { JSONObject objects = getArray. getJSONArray(i); //Iterate through the elements of the array i. //Get thier value. //Get the value for the first element and the value for the last element. }

What is JSON object class in Java?

JsonObject class represents an immutable JSON object value (an unordered collection of zero or more name/value pairs). It also provides unmodifiable map view to the JSON object name/value mappings. A JsonObject instance can be created from an input source using JsonReader. JsonObject value = Json.

How do you iterate a JSON object in Python?

Use json. loads() With the Help of the for Loop to Iterate Through a JSON Object in Python. A built-in package, json , is provided by Python, which can be imported to work with JSON form data. In Python, JSON exists as a string or stored in a JSON object.

How do you iterate JSONArray in GSON?

How to use iterator method in com. google. gson. JsonArray

  1. new JsonArray()
  2. JsonElement element;element.getAsJsonArray()
  3. JsonObject jsonObject;String memberName;jsonObject.getAsJsonArray(memberName)

What is Json format?

JavaScript Object Notation (JSON) is a standard text-based format for representing structured data based on JavaScript object syntax. It is commonly used for transmitting data in web applications (e.g., sending some data from the server to the client, so it can be displayed on a web page, or vice versa).

How many ways we can iterate HashMap?

There are generally five ways of iterating over a Map in Java.

What is the difference between HashMap and Hashtable?

HashMap is non-synchronized. It is not thread-safe and can’t be shared between many threads without proper synchronization code whereas Hashtable is synchronized. HashMap allows one null key and multiple null values whereas Hashtable doesn’t allow any null key or value.

How to iterate through jsonarray in JavaScript?

Sometimes you have to handle some type of array (JSONArray, int Array, etc) at client side, i.e. in jsp or html file. And you want to iterate this array in JavaScript.

How to iterate through an array in Java?

If “element” is referring to the component in the array, note that the first component is at index 0, and the last component is at index getArray.length () – 1. I want to iterate though the objects in the array and get thier component and thier value.

How to iterate through a jsonarray in Kotlin?

I’m writing an Android app using Kotlin and Realm. I have a JSONArray, and I want to iterate through the JSONObjects in this array in order to load them in a Realm database class: