将Firebase Cloud Message Token分配给新的java变量

import com.google.firebase.FirebaseApp;
import com.google.firebase.iid.FirebaseInstanceId;
import com.google.firebase.iid.InstanceIdResult;

public class Main {
    public static void main(String[] args) {
        // 初始化Firebase
        FirebaseApp.initializeApp();

        // 获取FCM Token
        FirebaseInstanceId.getInstance().getInstanceId()
                .addOnCompleteListener(task -> {
                    if (task.isSuccessful()) {
                        InstanceIdResult result = task.getResult();
                        String token = result.getToken();

                        // 将FCM Token分配给新的变量
                        String newVariable = token;

                        // 打印新的变量值
                        System.out.println("New Variable: " + newVariable);
                    } else {
                        System.out.println("Failed to get FCM Token");
                    }
                });
    }
}