import io.appwrite.Client;
import io.appwrite.coroutines.CoroutineCallback;
import io.appwrite.services.Account;

Client client = new Client()
    .setEndpoint("https://[HOSTNAME_OR_IP]/v1") // Your API Endpoint
    .setProject("5df5acd0d48c2") // Your project ID
    .setJWT("eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ..."); // Your secret JSON Web Token

Account account = new Account(client);

account.updateVerification(
    "[USER_ID]",
    "[SECRET]"
    new CoroutineCallback<>((result, error) -> {
        if (error != null) {
            error.printStackTrace();
            return;
        }

        System.out.println(result);
    })
);