Question: Count the email domains List employees = new ArrayList<>(); employees.add(new Employee("A", "A@google.com")); employees.add(new Employee("b", "b@gmail.com")); employees.add(new Employee("C", "C@google.com")); employees.add(new Employee("D", "D@yahoo.com"));
Java System design Spring CI/CD
¿Qué son los microservicios? Mencionar diferencias con arquitectura monolítica
1. Explain the role of dependency injection in Spring Boot and how it facilitates modular and testable code. 2. Discuss the advantages and challenges of using microservices architecture compared to monolithic architecture in large-scale applications.
Oops concept, Exception Multithreding, Collection, java8 features Spring boot flow, annotations, features
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
1. TCP vs other protocols 2. Garbage Collection algorithms 3. Dependency Injection vs Inversion of Control 4. Java 8 vs Java 21/25 5. Heap and CPU cache 6. volatile keyword
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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