There were 2 rounds of interviews. The requirement was for Spring, Core Java, and databases. I cleared the first round and am giving details for the second round interview questions. I could answer a few questions, but a few of them were tricky.

1. Hashcode Question

How does a HashMap work?

How will a key work if we are taking a name as a key in a Product class (name, price)? Write a hashcode function for it.

1. Designing Database

2. There are items. Create a table for them. a. iPhone RED 16 GB, iPhone Black 32 GB b. Pencil c. Laptop Bag 14" Red, 20" Black

3. Designing a database for a hierarchy as we see on a website: Electronic Items -> Mobile -> iPhone

4. Data structure: How many times has this array been reversed? [14, 18, 1, 5, 7, 11]

5. How will you arrange different classes in a Spring Boot project? Suppose there are 100 controller classes, 50 repository classes, and 100 DAO classes. Then, how will you arrange them in different packages?