A deep dive into the limitations of Java arrays, the evolution of the Collection Framework, and how Lists, Sets, Queues, and Maps solve real‑world problems with dynamic data handling.
Learn when to use Comparable or Comparator in Java, understand natural vs custom sorting, and see clear code examples with Collections.sort and Stream.sorted.
Learn the essential rules for writing Java source files, including file naming conventions, public class restrictions, main method behavior, and how the compiler handles errors.
Learn what Java is, its key features, and how compilers differ from interpreters. Understand platform independence, object-orientation, and more.
Master SOLID principles in Java with real-world code examples. Learn Single Responsibility, Open/Closed, Liskov, Interface Segregation, and Dependency Inversion.
Learn what design patterns are, why they matter, and how they help Java developers write clean, modular, and testable code. Covers all 23 GoF patterns categorized into creational, structural, and behavioral types.
Java interview questions covering Streams, concurrency, Spring annotations, JPA, and Optional. Includes code examples, Singleton pattern, and validation techniques.
Top Java 17 and design patterns interview questions with code examples. Covers Singleton, Streams, creational patterns, and new Java 17 features like sealed classes
Master Java and microservices interviews with these 25+ top questions and expert answers. Covers architecture, OAuth, messaging, threads, Spring Boot, and REST.
Ace Java and Spring Boot interviews with these 60+ expert Q&As. Covers core Java, Streams, Lambda, JPA, REST APIs, OAuth, Git, SQL, and microservices patterns.
Prepare for Java backend developer interviews with these top 20 questions and expert answers. Covers Spring Boot, JPA, Docker, SQL, AWS, and Java best practices.
