Java 8 Features: What are lambda expressions in Java? Provide an example. Explain the Stream API and its benefits. What are default methods in interfaces? Memory Management: How does garbage collection work in Java? Explain the difference between stack and heap memory.
Is Java Platform Independent if then how?
Hashset Stream API Spring Annotations functional interfcae JVM architecture SQL DSA
Spring Boot, Spring Cloud, Kafka, Design Pattern, 2 DSA question easy one.
Ways of creating thread. When to use runnable and when to use Thread. Abstract Class Instantiation of Abstract class Singleton classes Where singleton design can break? Custom class object as key in hashmap Identity hashmaps---equality is done using reference (==) Concurrent hashmaps--contains segments--1Sements = 1 Hasmap(Conceptually) Final class
java 8 theory as well coding questions, collection, multithreading spring boot microservices
JWT, Authentication,Spring security,Spring annotation and Java 8 program max slaary of employees group by department. Shallow copy and deep copy , transactional
Do you know about Kafka and how to use it in a springboot project?
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