Java Development Repository

A comprehensive collection of Java projects, lessons, exercises, and assessments for learning Object-Oriented Programming and data structures.

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Table of Contents

• About
• Repository Structure
• Quick Navigation
• Getting Started
• Projects
• Programming Object-Oriented
• Technologies & Tools

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About

This repository contains educational materials for Java programming, including:

• Foundational Projects: Basic applications demonstrating core Java concepts
• Lessons: Structured educational materials covering OOP concepts
• Exercises: Practical coding exercises to reinforce learning
• Assessments: Evaluation projects to test comprehensive understanding

The materials progress from fundamental concepts to advanced patterns, with each lesson building upon previous knowledge.

Languages: English (repository structure) | Portuguese (code comments & documentation)

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Repository Structure

java_development/
├── 📁 projects/                          # Foundational projects
│   ├── EmpresaFicticia/                  # Fictional company OOP example
│   └── NumerosAleatorios/                # Random numbers application
│
├── 📁 programming-object-oriented/       # Main educational content
│   ├── 📁 lessons/                       # Structured lessons
│   │   ├── lesson-01-basics/             # Basic concepts (conversion, tuples, equality)
│   │   ├── lesson-02-arrays-collections/ # Arrays and collections
│   │   ├── lesson-03-inheritance/        # Inheritance and polymorphism
│   │   ├── lesson-04-advanced/           # Advanced topics
│   │   └── lesson-review/                # Review and consolidation
│   │
│   ├── 📁 exercises/                     # Practical exercises
│   │   ├── list-exercises-01/            # List 1 exercises
│   │   ├── list-exercises-02/            # List 2 exercises
│   │   ├── list-exercises-03/            # List 3 exercises
│   │   ├── list-exercises-04/            # List 4 exercises (vectors, lists, matrices)
│   │   ├── list-exercises-05/            # List 5 exercises (inheritance)
│   │   ├── list-exercises-06/            # List 6 exercises (OOP patterns)
│   │   ├── list-exercises-07/            # List 7 exercises
│   │   └── list-exercises-08/            # List 8 exercises
│   │
│   ├── 📁 assessments/                   # Evaluation projects
│   │   └── assessment-01/                # First assessment
│
└── README.md                             # This file

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Quick Navigation

For Learning Progressively

1. Start with lessons in order: lesson-01-basics → lesson-02-arrays-collections → etc.
2. After each lesson, practice with corresponding exercises
3. Complete assessments to evaluate your understanding

By Topic

Topic	Resource	Path
Basic Concepts	lesson-01-basics	programming-object-oriented/lessons/lesson-01-basics/
Arrays & Collections	lesson-02-arrays-collections	programming-object-oriented/lessons/lesson-02-arrays-collections/
Inheritance & Polymorphism	lesson-03-inheritance	programming-object-oriented/lessons/lesson-03-inheritance/
Advanced Topics	lesson-04-advanced	programming-object-oriented/lessons/lesson-04-advanced/
Practical Exercises	list-exercises	programming-object-oriented/exercises/
Assessments	assessments	programming-object-oriented/assessments/

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Getting Started

Prerequisites

• Java 8+ installed
• IntelliJ IDEA (recommended) or any Java IDE
• Git (for cloning the repository)

Running a Project

1. Open in IntelliJ IDEA

   # Clone the repository
   git clone https://github.com/anderson/java_development.git
   
   # Open in IntelliJ
   # File → Open → Select the project folder

2. Run a lesson or exercise

   • Each project folder contains an .iml file for IntelliJ configuration
   • Locate the Main.java class in the package
   • Right-click → Run

3. Command line (if not using IDE)

   cd programming-object-oriented/lessons/lesson-01-basics/
   javac src/conversao/*.java
   java -cp src conversao.DemoConversao

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Projects

Foundational Projects

Located in projects/

Project	Description	Concepts
EmpresaFicticia	Fictional company management system	Classes, inheritance, polymorphism
NumerosAleatorios	Random number generator	Methods, randomization

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Programming Object-Oriented

Lessons (programming-object-oriented/lessons/)

Each lesson is a complete IntelliJ project with multiple packages (examples).

Lesson 01: Basics

• Path: lesson-01-basics/
• Packages: conversao, data, igualdade, tupla
• Topics: Unit conversion, Date class, equality, tuples
• Estimated Duration: 2-3 hours

Lesson 02: Arrays & Collections

• Path: lesson-02-arrays-collections/
• Topics: Arrays, ArrayLists, GameOfCheckers, Pascal's Triangle, Media calculations
• Estimated Duration: 3-4 hours

Lesson 03: Inheritance & Polymorphism

• Path: lesson-03-inheritance/
• Topics: Class hierarchy, inheritance, method overriding, company example, academic records
• Estimated Duration: 3-4 hours

Lesson 04: Advanced Topics

• Path: lesson-04-advanced/
• Topics: Search algorithms, color handling
• Estimated Duration: 2-3 hours

Lesson Review

• Path: lesson-review/
• Topics: Arrays/ArrayLists, generic collections, exceptions, polymorphism, class reuse
• Estimated Duration: 4-5 hours

Exercises (programming-object-oriented/exercises/)

8 lists of progressive exercises to reinforce concepts from lessons.

List	Focus	Path
01	Fundamentals	list-exercises-01/
02	Control flow	list-exercises-02/
03	Methods & Arrays	list-exercises-03/
04	Vectors & Matrices	list-exercises-04/
05	Inheritance & Delegation	list-exercises-05/
06	OOP Patterns	list-exercises-06/
07	Integration	list-exercises-07/
08	Consolidation	list-exercises-08/

Assessments (programming-object-oriented/assessments/)

Assessment	Purpose	Path
Assessment 01	First comprehensive evaluation	assessment-01/

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Technologies & Tools

Languages & Frameworks

• Java (8+)
• Standard Java libraries

Development Tools

• IntelliJ IDEA (recommended IDE)
• Git (version control)
• Java Compiler (javac)
• JVM (Java Virtual Machine)

Project Structure

• Each lesson/exercise is an IntelliJ project (.iml file)
• Code organized in packages under src/
• Compiled classes in out/ (gitignored)

Code Organization

Package Naming Convention

• Packages use descriptive names in both English and Portuguese
• Examples: conversao, data, agenda, empresa

File Naming Convention

• Classes: PascalCase (Main.java, Funcionario.java)
• Packages: lowercase with hyphens when multiple words

Structure Example

lesson-01-basics/
├── lesson-01-basics.iml
├── .gitignore
├── src/
│   ├── conversao/
│   │   ├── ConversaoUnidades.java
│   │   └── DemoConversao.java
│   ├── data/
│   │   ├── Data.java
│   │   └── demoData.java
│   └── ...
└── out/  (compiled classes - gitignored)

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License

This project is licensed under the terms specified in the LICENSE file.

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Last Updated: May 2026
Repository Version: 1.0 (Restructured)