Object Oriented Programming in Java

Index

• 1. Java Foundations and Program Structure
  • 1.1 The Java Platform
  • 1.2 Syntax Fundamentals
  • 1.3 Primitive Types and Variables
  • 1.4 Operators and Expressions
  • 1.5 Control Flow
  • 1.6 Arrays and Strings
• 2. Classes, Objects, and Encapsulation
  • 2.1 Object-Oriented Thinking
  • 2.2 Defining Classes
  • 2.3 Constructors and Initialization
  • 2.4 Methods in Depth
  • 2.5 Encapsulation and Access Control
  • 2.6 Static Members and Class-Level State
  • 2.7 Packages and Code Organization
• 3. Inheritance and Polymorphism
  • 3.1 Class Inheritance
  • 3.2 Method Overriding
  • 3.3 Polymorphism
  • 3.4 Abstract Classes
  • 3.5 The Object Superclass
  • 3.6 Composition and Design Choices
• 4. Interfaces and Abstraction Contracts
  • 4.1 Interface Fundamentals
  • 4.2 Modern Interface Features
  • 4.3 Abstract Classes versus Interfaces
  • 4.4 Core Java Interfaces
  • 4.5 Enums and Records
  • 4.6 Nested and Anonymous Types
• 5. Exception Handling and Robustness
  • 5.1 Exception Mechanics
  • 5.2 Handling and Declaring
  • 5.3 Resource Management
  • 5.4 Designing Exception Strategies
• 6. Generics
  • 6.1 Generic Types
  • 6.2 Advanced Generics
• 7. The Collections Framework
  • 7.1 Collection Interfaces
  • 7.2 Collection Implementations
  • 7.3 Working with Collections
• 8. Functional Programming in an Object-Oriented Language
  • 8.1 Lambda Expressions
  • 8.2 Built-In Functional Interfaces
  • 8.3 Method and Constructor References
  • 8.4 The Stream API
  • 8.5 Optional and Null Safety
• 9. Object-Oriented Design Principles and Patterns
  • 9.1 Design Quality Fundamentals
  • 9.2 SOLID Principles
  • 9.3 Creational Patterns
  • 9.4 Structural Patterns
  • 9.5 Behavioral Patterns
  • 9.6 UML and Modeling
• 10. Advanced Runtime and Language Features
  • 10.1 Reflection
  • 10.2 Annotations
• 11. Memory Model and Object Lifecycle
  • 11.1 Memory Layout and Object Allocation
  • 11.2 Garbage Collection and Reference Types
• 12. Concurrency & Parallelism
  • 12.1 Concurrency Foundations
  • 12.2 Shared State and the Java Memory Model
  • 12.3 Synchronization and Locking
  • 12.4 Designing Thread-Safe Objects
  • 12.5 High-Level Concurrency Utilities
• 13. Input, Output, and Serialization
  • 13.1 Streams and File Access
  • 13.2 Object Serialization
• 14. Networking in Java
  • 14.1 Networking Foundations
  • 14.2 Socket Programming
  • 14.3 Working with HTTP
  • 14.4 Non-Blocking IO and Protocol Design
• 15. Professional Practice and Tooling
  • 15.1 Testing Object-Oriented Code
  • 15.2 Build Tools and Dependencies
  • 15.3 Debugging and Code Quality
• 16. Database Connectivity with JDBC
  • 16.1 JDBC Fundamentals
  • 16.2 Safe and Efficient Data Access
  • 16.3 Transactions and Integrity
  • 16.4 Object-Relational Mapping
• 17. The Spring Framework
  • 17.1 Inversion of Control and Dependency Injection
  • 17.2 Aspect-Oriented Programming
  • 17.3 Spring Data Access
  • 17.4 Spring MVC and Web Layer
  • 17.5 Core Spring Annotations
• 18. Spring Boot and Production Applications
  • 18.1 Spring Boot Fundamentals
  • 18.2 Configuration and Profiles
  • 18.3 Building REST Services
  • 18.4 Security Essentials
  • 18.5 Testing and Operating Spring Boot Applications
• 19. Capstone and Interview Preparation
  • 19.1 Capstone Application Design
  • 19.2 Core Language and OOP Questions
  • 19.3 Collections, Generics, and Streams Questions
  • 19.4 Memory, Concurrency, and JVM Questions
  • 19.5 Framework and Ecosystem Questions
  • 19.6 Practical Interview Skills
  • 19.7 Exercises

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