Phase 2 – Object-Oriented Programming (2–3 months)
Classes, Objects, Attributes, and Methods
- Class structure
- Object instantiation
- Use of this
- Best practices: naming, code organization
Encapsulation, Inheritance, Polymorphism, and Abstraction
- Encapsulation: private, getters/setters, validation
- Inheritance: extends, overriding (@Override)
- Polymorphism: Subtype, method overloading
- Abstraction: overview, preparation for interfaces and abstract classes
Interfaces and Abstract Classes
- Interfaces: implements, default methods
- Abstract classes: abstract and concrete methods
- Differences between interface and abstract class
Constructors, Initializers, and Static Blocks
- Default and parameterized constructors, calls with this()
- Initialization blocks ({}) and static blocks (static {})
Enumerations
- Creating and using enum
- Methods and attributes in enums
Basic Collections
- ArrayList: addition, removal, iteration (for, forEach, Iterator)
- HashMap: key-value, common operations
- HashSet: duplicate elimination
- Introduction to Queue and Stack (e.g., LinkedList as queue/stack)
- Introduction to Java Collections Framework
Basic Algorithms
- Linear and binary search
- Sorting: Bubble Sort, Collections.sort()
- Recursion: concepts and simple examples (e.g., factorial, Fibonacci)
- Introduction to complexity (O(n), O(log n))
Generics
- Syntax (), generic collections, generic methods
- Bounds (extends, super)
Stream API (Introduction)
- Basic operations: filter, map, collect
- Examples with ArrayList
Unit Testing (Introduction)
- Basic use of JUnit
- Writing test cases for classes and methods
- Introduction to TDD (Test-Driven Development)
Final Project
- Library System
- Classes: Book, User, Library
- Inheritance: DigitalBook and PhysicalBook
- Collections: ArrayList for books, HashMap for loans
- Encapsulation: data validation
- Git: commit per feature (e.g.,
feature/book-management)
- Publish on GitHub with explanatory README
Updated Resources