System design interview for an employee benefits platform. Topics included: - employer onboarding - employee import - authentication/SSO, - bulk CSV handling, - Kafka/outbox notifications, - balance calculation, - transaction modeling, - idempotency, - merchant payments, - settlement
how to implement custom exception
custom exception can be categorised as checked or unchecked? can we create custom exception for checked exceptions?
what is insertion order of elements in array & list ?
No technical question, as the person seemed to be from management & was interested in management kind of questions, In short waste of time.
I can not remember something really unexpected or extremely difficult
Core Java Spring architecture Beans Autowiring Hibernate
Print a given matrix in spiral form
Explain the different types of garbage collectors available in the JVM and their use cases (e.g., G1, CMS, Parallel).
What are CompletableFutures in Java, and how do they enable asynchronous programming?
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