How to Convert a Java HashMap to a JSON String?

Converting HashMap to JSON Object in Java

Question:

How can I convert a HashMap to a JSON object in Java, and then further convert it to a JSON string?

Answer:

To convert a HashMap to a JSON object, you can use the following code:

JSONObject jsonObject = new JSONObject(hashMap);

This will create a JSON object from the provided HashMap.

To convert the JSON object to a JSON string, you can use the following code:

String jsonString = jsonObject.toString();

This will return a string representation of the JSON object.

Additional Functionality:

The JSON-java library provides various other functions for working with JSON data. You can find more information in the library's documentation:

http://stleary.github.io/JSON-java/index.html

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