How can I validate JSON in Java?

How can I validate JSON in Java?

You can use libraries like Jackson or Gson to validate JSON in Java. Would you like a code example?

Yes, please provide a code example using Jackson.

Sure! Here's a simple example:

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

public class JsonValidation {
    public static void main(String[] args) {
        String jsonString = "{ \"name\": \"John\", \"age\": 30 }";
        ObjectMapper objectMapper = new ObjectMapper();
        try {
            JsonNode jsonNode = objectMapper.readTree(jsonString);
            System.out.println("Valid JSON: " + jsonNode);
        } catch (Exception e) {
            System.out.println("Invalid JSON: " + e.getMessage());
        }
    }
}

What if the JSON is invalid? How can I handle that?

You can catch exceptions thrown by the readTree method to handle invalid JSON. The example above shows how to do that.