import org.json.JSONObject;

import org.json.JSONException;

public class JsonValidator {

public static void validateJson(String jsonString) {

try {

// Attempt to parse the JSON string

JSONObject jsonObject = new JSONObject(jsonString);

// If parsing is successful, print a success message.

System.out.println("JSON is valid.");

} catch (JSONException e) {

// If parsing fails, print the error message.

System.err.println("JSON Error: " + e.getMessage());

//Optional: print stacktrace for debugging

//e.printStackTrace();

}

}

public static void main(String[] args) {

//Example usage

String validJson = "{ \"name\": \"John\", \"age\": 30 }";

String invalidJson = "{ \"name\": \"John\", \"age\": }";

System.out.println("Valid JSON Validation:");

validateJson(validJson);

System.out.println("\nInvalid JSON Validation:");

validateJson(invalidJson);

}

}