🔥Topics To Cover
Core Java concepts:
OOPs: Inheritance, Polymorphism, Encapsulation, Abstraction
Multithreading: Thread creation and synchronization, Inter-thread communication, Deadlock, Race condition
Collections: List, Set, Map, Iterator, Comparator, Concurrent Collections
Exception handling: Try-catch-finally blocks, Exception hierarchy, Checked and Unchecked exceptions
Advanced Java concepts:
Servlets: Request and Response objects, Servlet lifecycle, Request dispatching, Session Management
JSP: JSP lifecycle, Expression Language, JSTL, Custom Tag Libraries
JDBC: DriverManager, Connection, Statement, PreparedStatement, ResultSet
JPA/Hibernate: Entity, EntityManager, PersistenceContext, Transactions, HQL
Spring Framework:
Spring Boot: Autoconfiguration, Starter Dependencies, Spring Boot Actuator, Embedded Containers
Spring MVC: Controllers, Views, Model, Binding, Validation
Spring Data: Repositories, Query Methods, Pagination, Auditing, Transactions
Spring Security: Authentication, Authorization, Security Filters, CSRF, CORS
RESTful web services and API design:
HTTP Methods: GET, POST, PUT, DELETE
Resource URI Design: URI structure, Resource representations, Query Parameters
Message Formats: JSON, XML
API Documentation: Swagger, API Blueprint
Microservices architecture and design patterns:
API Gateway: Benefits, Architecture, Load balancing, Routing
Circuit Breaker: Purpose, Implementation, Circuit Breaker Pattern
Service Registry: Purpose, Benefits, Examples
Cloud-based solutions:
AWS or Azure: Basic services offered, Elastic Beanstalk, EC2, S3, RDS, Lambda
Docker: Containerization, Dockerfiles, Docker Compose, Docker Swarm
Kubernetes: Cluster management, Kubernetes Objects, Deployment, Service
SQL and NoSQL databases:
SQL: Basic Queries, Joins, Aggregations, Subqueries, Indexes
NoSQL: Key-Value stores, Document stores, Column-family stores, Graph databases
Testing frameworks:
JUnit: Test fixtures, Assertions, Parameterized Tests
Mockito: Mocking, Spying, Verification, Stubbing
TestNG: Annotations, Data Providers, Assertion Types, Test Groups
Agile methodologies:
Scrum: Sprint Planning, Sprint Review, Daily Standup, Sprint Retrospective
Kanban: Visualization, Work in Progress Limits, Pull-based Workflow
System design and scalability:
Load balancing: Round Robin, Weighted Round Robin, Least Connections, IP Hash
Caching: Types of caching, Invalidation, Cache Eviction Policies
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