Below are the technical questions asked me during the interview 1. HashMap vs TreeMap 2. Deadlock situation, how do you avoid it ? 3. Multiple Inheritance in java(Diamod Problem) 4. How do you maintain two different Databases in springboot application 5. About Kafka offset(earliest, latest, default configurations) 6. Marker interface in java
What are the features of Java 8?
all about list.sort.unionSet
Another question they asked was database related, which I have nearly no knowledge of. They asked how I would handle a scenario of retrieving data from a database, then storing it within a data structure. The data from the database included customers' names and the items they previously purchased from Microsoft.
Explain how Garbage Collection Works.
Explain what a HashMap does.
Explain the word Synchronised in Java
Have you ever used Trenching? explain what that does.
These questions were asked in PI round: 1) Database related questions - deadlock, it's conditions, scheduling 2) Java related questions - abstract class vs interface 3) Code abstract class on pen paper
2nd Round - Technical HR Questions: Core Java - OOPS concepts, Threads, String, Collections, Arrays, Exceptions Spring - Spring MVC framework, Annotations Hibernate - Types of mapping, Lazy loading concept, Cascading, Cache Web Services(RESTful) - REST methods with explanation, about HTTP protocols, request and response
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