What is the function of JSONObject in Android?
In Android, JSONObject is a class used to represent JSON objects. JSON (JavaScript Object Notation) is a lightweight data exchange format commonly used for data interaction between front-end and back-end. In Android, we often need to handle JSON data returned from servers, and we can use the JSONObject class to parse and manipulate this data.
The functions of JSONObject include:
- Parsing the JSON data returned from the server: By using the methods of the JSONObject class, we can parse the JSON data returned from the server into a JSONObject object, and then retrieve the data based on key-value pairs.
- Create JSON data: We can also use the JSONObject class to build a JSON object and then convert this JSON object into a string to send data to the server.
- Operating JSON data: The JSONObject class provides a series of methods for manipulating JSON data, such as retrieving key-value pairs, adding new key-value pairs, and removing key-value pairs.
In general, the role of JSONObject in Android is to make it easier for us to parse and manipulate JSON data.
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