Ошибка кода Error: Could not find or load main class test

java
public class Test {
    public static String encryptMessage(String message) {
        StringBuilder encryptedMessage = new StringBuilder();
        for (int i = 0; i < message.length(); i += 2) {
            if (i + 1 < message.length()) {
                encryptedMessage.append(message.charAt(i + 1)).append(message.charAt(i));
            } else {
                encryptedMessage.append(message.charAt(i));
            }
        }
        return encryptedMessage.toString();
    }

    public static void main(String[] args) {
        String originalMessage = "Привет, мир!";
        String encrypted = encryptMessage(originalMessage);
        System.out.println("Зашифрованное сообщение: " + encrypted);
    }
}