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());
        }
    }
}

This code checks if the JSON string is valid.

What if the JSON is invalid?

If the JSON is invalid, the readTree method will throw an exception, which you can catch to handle the error.