Visa Inc SDE-1 Interview Experience || Accepted || Questions & Comp

Can you list some new features introduced in Java 17? (Follow-up: I mentioned Java 8 & 11 features like streams, optionals, lambda etc.)

Given a List of Emp POJOs (with name, id, etc.), how would you filter it using Java Streams to find employees whose name starts with your first name?

Using the same List of Emp POJOs, how would you sort it in reversed order using Java Streams? (Follow-up: The interviewer was fine with list.sort + Comparator lambda, and asked about Comparator & lambda.)

Can you describe the different Map implementations available in Java?

Explain how a HashMap works internally in Java. (Follow-ups: hash collision (chaining, open addressing, double hashing); again asked about chaining; TC of chaining insert; how to improve TC; interviewer hint about ordering & trees; AVL trees as values was the answer)

What version of Spring Boot do you use?

Explain what Dependency Injection is in Spring Boot and its advantages. (Follow-up: benefits of DI; follow-up about what is singleton)

If a prototype bean is autowired inside a singleton bean, would it still act like a prototype, meaning a new instance is created each time?

What types of databases have you used? (Follow-up: is HanaDB SQL or NoSQL?)

Given a table with columns id and gender, write an SQL query to find the count of males and females.

Given a list of words, find the longest common prefix among them.

Flipped the previous question to find the longest common substring among words.

Tell me about a time you faced a significant challenge and what you learned from that experience. (Follow-up questions related to work discussion)

This job can sometimes be very monotonous. How do you deal with such situations?

How do you stay up-to-date and relevant with what's happening in the tech field?

What are your thoughts on Generative AI?