Fiserv 合同工

简答：
Responsibilities on last project

Do you know boundary context

There's a client service and account service, each of them has a DB. If client want to get a accountId from account DB, Will it fetch from account DB directly or call an API in account service?
a. Are you good at Kafka.
b. Can we send the send the request to kafka m

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extend B{

   public void getDetails(){ Syso("John")}

   public static void main(){

   B b= new A();

   A a1= new A();

   A a= new B();

what will be the results of
b.getDetail()
a1.getDetail()
a.getDetail()