Here is an example of how you can convert a JSON string to a HashMap in Java:
You can use the Gson library to convert a JSON string to a Map in Java.
To convert JSON data to a Java object, you can use the fromJson method of the Gson class.
You can use the @JsonFormat annotation to specify the format of date fields in a JSON payload when serializing or deserializing using Jackson.
To get the email of a user through the Facebook Graph API, you will need to follow some steps.
To get a JSON object from a HTTP response in Java, you can use the JSONObject class from the org.json library.
To write JSON data to a file in Python, you can use the json module.
To return a JSON object from a Java Servlet, you can use the following steps:
Read this tutorial and learn about how the Access-Control-Allow-Origin response header works. Also, read about CORS, the origin, and non-simple requests.
In JSON, certain characters must be escaped in strings.