Week 1 Java Fundamentals And Spring Boot Setup A Comprehensive Guide

by StackCamp Team 69 views

This week marks the beginning of our journey into full-stack development, focusing on Java fundamentals and Spring Boot setup. We'll cover essential tools, modern Java features, Spring Boot basics, React environment setup, and Docker containerization. By the end of this week, you'll have a solid foundation for building full-stack applications.

🎯 Week 1 Learning Objectives

This week, we aim to equip you with the foundational knowledge and practical skills necessary for full-stack development. By the end of this week, you will:

  • Set up a complete Java development environment, ensuring you have the right tools and configurations.
  • Understand and utilize modern Java features (Java 17+), enhancing your coding efficiency and capabilities.
  • Create your first Spring Boot application, laying the groundwork for backend development.
  • Set up a React development environment, preparing you for frontend development.
  • Create and run Docker containers, enabling you to package and deploy applications effectively.
  • Build a simple full-stack "Hello World" application, integrating the frontend and backend components.

🔧 Day 1: Development Environment Setup

Morning Session (3 hours)

Our first morning focuses on setting up the Java development kit, ensuring you have the core tools needed for Java development.

Java Development Kit Setup

  • Install Java 17 or later: We recommend the Long-Term Support (LTS) version for stability and continued support. This ensures you are working with a modern and well-supported version of Java.
  • IDE Setup: Choose either IntelliJ IDEA Community Edition or Eclipse. Both are powerful Integrated Development Environments (IDEs) that offer excellent support for Java development.
  • Build Tools: Learn the basics of Maven and Gradle. These are essential for managing project dependencies and building your applications.
# Verify Java installation
java -version
javac -version

# Maven installation verification
mvn -version

# Git configuration
git config --global user.name "Your Name"
git config --global user.email "your.email@example.com"

Setting up your environment correctly is crucial for a smooth development process. Verifying your installations and configuring Git are essential first steps.

Reference Links:

Afternoon Session (3 hours)

The afternoon session dives into modern Java features, focusing on the enhancements introduced in Java 14 and later. Understanding these features will make your code more concise and expressive.

Modern Java Features Deep Dive

  • Records (Java 14+): Discover immutable data carriers that simplify data class creation. Records automatically generate methods like equals(), hashCode(), and toString(), reducing boilerplate code.
  • Pattern Matching (Java 17+): Explore instanceof improvements that streamline type checking and casting. Pattern matching makes your code cleaner and more readable when dealing with different object types.
  • Text Blocks (Java 15+): Learn to use multi-line strings for improved readability in your code. Text blocks eliminate the need for manual line breaks and concatenation, making it easier to work with multi-line strings like JSON or SQL queries.
  • Switch Expressions (Java 14+): Enhance your switch statements with more concise and expressive syntax. Switch expressions allow you to return values directly from switch blocks, simplifying your code.

Hands-on Code Examples:

// Records Example
public record Person(String name, int age, String email) {
 // Compact constructor
 public Person {
 if (age < 0) throw new IllegalArgumentException("Age cannot be negative");
 }
}

// Pattern Matching
public String formatObject(Object obj) {
 return switch (obj) {
 case String s -> "String: " + s;
 case Integer i -> "Integer: " + i;
 case Person p -> "Person: " + p.name();
 default -> "Unknown type";
 };
}

// Text Blocks
String json = """
 {
 "name": "John",
 "age": 30,
 "email": "john@example.com"
 }
 """;

These code examples demonstrate how to use modern Java features effectively. Records simplify data classes, pattern matching enhances type handling, and text blocks make multi-line strings easier to manage. Mastering these features will significantly improve your Java coding skills.

Reference Links:


🌱 Day 2: Spring Boot Fundamentals

Morning Session (3 hours)

Day two begins with Spring Boot project creation, focusing on how to set up your projects efficiently using Spring Initializr and understand the project structure.

Spring Boot Project Creation

  • Spring Initializr: Learn to use Spring Initializr to create projects with the necessary dependencies. This tool streamlines project setup, allowing you to quickly generate a Spring Boot project with the required dependencies.
  • Project Structure: Understand the Maven/Gradle structure, which is crucial for managing your project's dependencies and build process. A well-organized project structure is essential for maintainability and scalability.
  • Application Properties: Master configuration management using application properties. This allows you to externalize configuration settings, making your application more flexible and easier to manage in different environments.

Spring Boot Starter Dependencies

<!-- Essential Spring Boot Starters -->
<dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-test</artifactId>
 <scope>test</scope>
</dependency>

These Spring Boot Starters are essential for most web applications. spring-boot-starter-web provides the necessary dependencies for building web applications, spring-boot-starter-data-jpa simplifies database interactions, spring-boot-starter-validation enables request validation, and spring-boot-starter-test offers testing support.

Reference Links:

Afternoon Session (3 hours)

The afternoon session delves into Auto-Configuration and Application Context within Spring Boot. Understanding these concepts is vital for building robust Spring Boot applications.

Auto-Configuration & Application Context

  • @SpringBootApplication annotation breakdown: Learn what this key annotation does behind the scenes. @SpringBootApplication combines @Configuration, @EnableAutoConfiguration, and @ComponentScan to simplify Spring Boot application setup.
  • Component Scanning and bean registration: Understand how Spring Boot automatically discovers and registers components as beans in the application context. Component scanning reduces the need for explicit bean configuration.
  • Auto-Configuration mechanism: Explore how Spring Boot intelligently configures your application based on dependencies. Auto-configuration simplifies development by automatically configuring beans based on the classpath.

First REST Controller

@RestController
@RequestMapping("/api/hello")
public class HelloController {
 
 @GetMapping
 public ResponseEntity<String> hello() {
 return ResponseEntity.ok("Hello, Spring Boot!");
 }
 
 @GetMapping("/{name}")
 public ResponseEntity<String> helloName(@PathVariable String name) {
 return ResponseEntity.ok("Hello, " + name + "!");
 }
 
 @PostMapping
 public ResponseEntity<String> createGreeting(@RequestBody String message) {
 return ResponseEntity.ok("Received: " + message);
 }
}

This example demonstrates a simple REST controller in Spring Boot. The @RestController annotation marks the class as a controller, @RequestMapping maps requests to the /api/hello path, and @GetMapping and @PostMapping handle GET and POST requests, respectively. This is the foundation for building your backend API.

Application Properties Configuration

# application.properties
server.port=8080
spring.application.name=hello-spring-boot
logging.level.com.example=DEBUG
management.endpoints.web.exposure.include=health,info

Configuring application properties is crucial for managing your application's behavior. This example shows how to set the server port, application name, logging level, and management endpoints.

Reference Links:


⚛️ Day 3: React Development Environment

Morning Session (3 hours)

Day three shifts our focus to the frontend with React development environment setup. We'll cover Node.js, package managers, and setting up your React project.

Node.js and Package Manager Setup

  • Node.js LTS installation and verification: Node.js is essential for running JavaScript outside of a browser. Installing the Long-Term Support (LTS) version ensures stability.
  • npm vs yarn vs pnpm: Package manager comparison: Understand the differences between these package managers to choose the best one for your needs. npm, yarn, and pnpm are all used to manage project dependencies, but they have different approaches to dependency resolution and performance.
  • npx: Running packages without installation: npx allows you to run Node.js packages without installing them globally, simplifying the execution of command-line tools.

Environment Setup Commands

# Node.js version check
node --version
npm --version

# Create React application
npx create-react-app my-first-app
cd my-first-app
npm start

# Alternative with Vite (faster)
npm create vite@latest my-react-app -- --template react
cd my-react-app
npm install
npm run dev

These commands guide you through setting up your Node.js environment and creating a new React application. Using create-react-app or Vite ensures you have a standardized and optimized project setup.

Reference Links:

Afternoon Session (3 hours)

The afternoon session focuses on Modern JavaScript (ES6+) Essentials. Mastering these features is crucial for writing efficient and maintainable React code.

Modern JavaScript (ES6+) Essentials

  • Arrow Functions and lexical this: Learn how arrow functions provide a more concise syntax and handle this context differently.
  • Destructuring assignment: Simplify extracting values from objects and arrays with destructuring.
  • Template Literals and interpolation: Use template literals for cleaner string concatenation and variable interpolation.
  • Modules (import/export): Understand how to organize your code into modules using import and export statements.
  • Async/Await and Promises: Handle asynchronous operations more effectively with async/await and Promises.

JavaScript Modern Features Code Examples

// Arrow Functions
const add = (a, b) => a + b;
const users = names.map(name => ({ name, id: Math.random() }));

// Destructuring
const { name, age } = person;
const [first, second, ...rest] = array;

// Template Literals
const message = `Hello, ${name}! You are ${age} years old.`;

// Modules
export const API_URL = 'https://api.example.com';
export default function fetchData() { /* ... */ }

// Async/Await
async function fetchUserData(id) {
 try {
 const response = await fetch(`/api/users/${id}`);
 const userData = await response.json();
 return userData;
 } catch (error) {
 console.error('Error fetching user:', error);
 throw error;
 }
}

// Promise handling
fetchUserData(123)
 .then(user => console.log(user))
 .catch(error => console.error(error));

These examples illustrate the power of modern JavaScript features. Arrow functions simplify function syntax, destructuring makes it easier to extract values, template literals improve string handling, modules help organize code, and async/await makes asynchronous operations more readable.

Reference Links:


🐳 Day 4: Docker Fundamentals

Morning Session (3 hours)

Day four introduces Docker Fundamentals, covering installation, basic concepts, and essential commands. Docker is crucial for containerizing applications, making them portable and scalable.

Docker Installation and Basics

  • Docker Desktop installation: Docker Desktop provides a user-friendly interface for managing Docker containers on your local machine.
  • Docker concepts: Images, Containers, Dockerfile: Understand the core concepts of Docker, including images (read-only templates), containers (running instances of images), and Dockerfiles (scripts for building images).
  • Basic Docker commands: Learn essential Docker commands for managing images and containers.

Essential Docker Commands

# Docker installation verification
docker --version
docker run hello-world

# Basic container operations
docker ps # List running containers
docker ps -a # List all containers
docker images # List images
docker pull ubuntu:latest # Pull image
docker run -it ubuntu bash # Run interactive container
docker stop <container-id> # Stop container
docker rm <container-id> # Remove container
docker rmi <image-id> # Remove image

These commands are fundamental for working with Docker. They allow you to verify your installation, list containers and images, pull images from a registry, run interactive containers, and manage container lifecycle.

Reference Links:

Afternoon Session (3 hours)

The afternoon session delves into Creating Dockerfiles, focusing on syntax, best practices, multi-stage builds, and image optimization techniques.

Creating Dockerfiles

  • Dockerfile syntax and best practices: Learn the syntax and best practices for writing efficient and maintainable Dockerfiles.
  • Multi-stage builds: Understand how multi-stage builds can reduce image size by separating build dependencies from runtime dependencies.
  • Image optimization techniques: Explore techniques for optimizing Docker image size and performance.

Sample Dockerfiles

# Java Spring Boot Dockerfile
FROM openjdk:17-jdk-slim as build
WORKDIR /app
COPY pom.xml .
COPY src ./src
RUN ./mvnw clean package -DskipTests

FROM openjdk:17-jdk-slim
WORKDIR /app
COPY --from=build /app/target/*.jar app.jar
EXPOSE 8080
ENTRYPOINT ["java", "-jar", "app.jar"]

# React Application Dockerfile
FROM node:18-alpine as build
WORKDIR /app
COPY package*.json ./
RUN npm ci --only=production
COPY . .
RUN npm run build

FROM nginx:alpine
COPY --from=build /app/dist /usr/share/nginx/html
EXPOSE 80
CMD ["nginx", "-g", "daemon off;"]

These Dockerfile examples demonstrate how to containerize a Spring Boot application and a React application. Multi-stage builds are used to create smaller and more efficient images.

Docker Compose Introduction

# docker-compose.yml
version: '3.8'
services:
 backend:
 build: ./backend
 ports:
 - "8080:8080"
 environment:
 - SPRING_PROFILES_ACTIVE=docker
 
 frontend:
 build: ./frontend
 ports:
 - "3000:80"
 depends_on:
 - backend

This Docker Compose file demonstrates how to define and manage multi-container applications. Docker Compose simplifies the deployment of applications that consist of multiple services.

Reference Links:


🏗️ Day 5: Integration Project - "Hello World" Full-Stack

Morning Session (3 hours)

Day five focuses on the Integration Project - "Hello World" Full-Stack, starting with Spring Boot backend development. We'll create a REST API with multiple endpoints, configure CORS, and handle basic errors.

Spring Boot Backend Development

  • Create REST API with multiple endpoints: Build a RESTful API to handle frontend requests.
  • CORS configuration for frontend integration: Configure Cross-Origin Resource Sharing (CORS) to allow your frontend to communicate with your backend.
  • Basic error handling: Implement error handling to ensure your application is resilient to unexpected issues.

Complete Backend Code

// Main Application Class
@SpringBootApplication
public class HelloWorldApplication {
 public static void main(String[] args) {
 SpringApplication.run(HelloWorldApplication.class, args);
 }
}

// CORS Configuration
@Configuration
@EnableWebMvc
public class WebConfig implements WebMvcConfigurer {
 @Override
 public void addCorsMappings(CorsRegistry registry) {
 registry.addMapping("/api/**")
 .allowedOrigins("http://localhost:3000")
 .allowedMethods("GET", "POST", "PUT", "DELETE")
 .allowedHeaders("*")
 .allowCredentials(true);
 }
}

// Enhanced Controller
@RestController
@RequestMapping("/api")
public class HelloController {
 
 @GetMapping("/hello")
 public ResponseEntity<Map<String, String>> hello() {
 Map<String, String> response = new HashMap<>();
 response.put("message", "Hello from Spring Boot!");
 response.put("timestamp", LocalDateTime.now().toString());
 return ResponseEntity.ok(response);
 }
 
 @PostMapping("/greet")
 public ResponseEntity<Map<String, String>> greet(@RequestBody Map<String, String> request) {
 String name = request.get("name");
 Map<String, String> response = new HashMap<>();
 response.put("greeting", "Hello, " + name + "!");
 response.put("timestamp", LocalDateTime.now().toString());
 return ResponseEntity.ok(response);
 }
}

This code demonstrates a complete Spring Boot backend for the "Hello World" application. It includes CORS configuration and two endpoints: /api/hello and /api/greet.

Afternoon Session (3 hours)

The afternoon session focuses on React Frontend Development. We'll create React components, handle HTTP requests, manage state, and apply basic styling.

React Frontend Development

  • Create React components: Build reusable UI components for your application.
  • HTTP requests using fetch API: Make API calls to your backend using the fetch API.
  • State management with useState: Manage component state using the useState hook.
  • Basic styling with CSS: Apply basic styling to your components using CSS.

Complete Frontend Code

// App.js
import React, { useState, useEffect } from 'react';
import './App.css';

function App() {
 const [message, setMessage] = useState('');
 const [name, setName] = useState('');
 const [greeting, setGreeting] = useState('');
 const [loading, setLoading] = useState(false);

 // Fetch hello message on component mount
 useEffect(() => {
 fetch('http://localhost:8080/api/hello')
 .then(response => response.json())
 .then(data => setMessage(data.message))
 .catch(error => console.error('Error:', error));
 }, []);

 const handleSubmit = async (e) => {
 e.preventDefault();
 setLoading(true);
 
 try {
 const response = await fetch('http://localhost:8080/api/greet', {
 method: 'POST',
 headers: {
 'Content-Type': 'application/json',
 },
 body: JSON.stringify({ name }),
 });
 
 const data = await response.json();
 setGreeting(data.greeting);
 } catch (error) {
 console.error('Error:', error);
 } finally {
 setLoading(false);
 }
 };

 return (
 <div className="App">
 <header className="App-header">
 <h1>Full-Stack Hello World</h1>
 <div className="message-container">
 <p>{message}</p>
 </div>
 
 <form onSubmit={handleSubmit} className="greeting-form">
 <input
 type="text"
 value={name}
 onChange={(e) => setName(e.target.value)}
 placeholder="Enter your name"
 required
 />
 <button type="submit" disabled={loading}>
 {loading ? 'Greeting...' : 'Get Greeting'}
 </button>
 </form>
 
 {greeting && (
 <div className="greeting-result">
 <p>{greeting}</p>
 </div>
 )}
 </header>
 </div>
 );
}

export default App;
/* App.css */
.App {
 text-align: center;
}

.App-header {
 background-color: #282c34;
 padding: 20px;
 color: white;
 min-height: 100vh;
 display: flex;
 flex-direction: column;
 align-items: center;
 justify-content: center;
}

.message-container {
 margin: 20px 0;
 padding: 10px;
 background-color: #444;
 border-radius: 5px;
}

.greeting-form {
 display: flex;
 flex-direction: column;
 gap: 10px;
 margin: 20px 0;
}

.greeting-form input {
 padding: 10px;
 font-size: 16px;
 border: none;
 border-radius: 5px;
}

.greeting-form button {
 padding: 10px 20px;
 font-size: 16px;
 background-color: #61dafb;
 color: #282c34;
 border: none;
 border-radius: 5px;
 cursor: pointer;
}

.greeting-form button:disabled {
 background-color: #ccc;
 cursor: not-allowed;
}

.greeting-result {
 margin: 20px 0;
 padding: 15px;
 background-color: #4CAF50;
 border-radius: 5px;
 font-size: 18px;
}

This code provides a complete React frontend for the "Hello World" application. It includes state management, HTTP requests using the fetch API, and basic styling with CSS.


🏁 Day 6: Docker Integration & Testing

Morning Session (3 hours)

Day six focuses on Docker Integration & Testing, ensuring our full-stack application can be containerized and tested effectively. We'll set up a multi-container environment using Docker Compose.

Containerizing the Full-Stack Application

  • Multi-container setup with Docker Compose: Define and manage multiple containers using Docker Compose.
  • Network configuration between containers: Set up networking so containers can communicate with each other.
  • Environment variables management: Use environment variables to configure your application in different environments.

Complete Docker Setup

# backend/Dockerfile
FROM openjdk:17-jdk-slim
WORKDIR /app
COPY target/*.jar app.jar
EXPOSE 8080
ENTRYPOINT ["java", "-jar", "app.jar"]

# frontend/Dockerfile
FROM node:18-alpine as build
WORKDIR /app
COPY package*.json ./
RUN npm ci
COPY . .
RUN npm run build

FROM nginx:alpine
COPY --from=build /app/build /usr/share/nginx/html
COPY nginx.conf /etc/nginx/nginx.conf
EXPOSE 80
CMD ["nginx", "-g", "daemon off;"]
# docker-compose.yml
version: '3.8'
services:
 backend:
 build: ./backend
 container_name: hello-backend
 ports:
 - "8080:8080"
 environment:
 - SPRING_PROFILES_ACTIVE=docker
 networks:
 - app-network

 frontend:
 build: ./frontend
 container_name: hello-frontend
 ports:
 - "3000:80"
 depends_on:
 - backend
 networks:
 - app-network

networks:
 app-network:
 driver: bridge

This setup includes Dockerfiles for both the backend and frontend, as well as a docker-compose.yml file to orchestrate the containers. The app-network ensures the containers can communicate with each other.

Afternoon Session (3 hours)

The afternoon session covers Testing and Deployment. We'll manually test endpoints, handle errors, debug issues, and perform basic performance checks.

Testing and Deployment

  • Manual testing of all endpoints: Verify that all API endpoints function correctly.
  • Error handling and debugging: Identify and resolve any issues that arise during testing.
  • Performance basic checks: Perform basic checks to ensure the application performs adequately.

Testing Commands

# Build and run containers
docker-compose up --build

# Test backend endpoints
curl http://localhost:8080/api/hello
curl -X POST http://localhost:8080/api/greet \
 -H "Content-Type: application/json" \
 -d '{"name": "Docker"}'

# Access frontend
open http://localhost:3000

# Container logs
docker-compose logs backend
docker-compose logs frontend

# Cleanup
docker-compose down
docker system prune -f

These commands guide you through building, running, and testing your Dockerized application. They also include commands for cleaning up resources after testing.


📝 Day 7: Documentation & Review

Morning Session (2 hours)

Day seven focuses on Project Documentation, which is crucial for maintainability and collaboration. We'll create a README.md, document the API, and draw a simple architecture diagram.

Project Documentation

  • README.md creation with setup instructions: Write a comprehensive README.md file that explains how to set up and run your application.
  • API documentation with examples: Document your API endpoints with examples of how to use them.
  • Architecture diagram (simple): Create a simple diagram to illustrate the architecture of your application.

Sample README.md

# Hello World Full-Stack Application

A simple full-stack application demonstrating Spring Boot backend with React frontend.

## Technology Stack
- **Backend**: Java 17, Spring Boot 3.x
- **Frontend**: React 18, JavaScript ES6+
- **Containerization**: Docker, Docker Compose

## Getting Started

### Prerequisites
- Java 17+
- Node.js 18+
- Docker & Docker Compose

### Running with Docker
```bash
# Clone repository
git clone <repository-url>
cd hello-world-app

# Build and run
docker-compose up --build

# Access application
# Frontend: http://localhost:3000
# Backend: http://localhost:8080

Local Development

  1. Backend:
cd backend
./mvnw spring-boot:run
  1. Frontend:
cd frontend
npm install
npm start

API Endpoints

  • GET /api/hello - Get welcome message
  • POST /api/greet - Get personalized greeting

Architecture

┌─────────────┐ HTTP ┌─────────────┐
│ React │ ────────> │ Spring Boot │
│ Frontend │ │ Backend │
│ (Port 3000)│ │ (Port 8080) │
└─────────────┘ └─────────────┘

This **sample README.md** provides a template for documenting your project. It includes sections for technology stack, prerequisites, setup instructions, API endpoints, and architecture.

### Afternoon Session (2 hours)

The afternoon session is dedicated to **Week Review and Next Steps**. We'll review code, set up a Git repository, reflect on learning, and prepare for week 2.

#### Week Review and Next Steps

- **Code review** and refactoring: Review your code for potential improvements and refactor where necessary.
- **Git repository** setup and initial commit: Set up a Git repository for your project and make an initial commit.
- **Learning reflection** and notes: Reflect on what you've learned this week and take notes for future reference.
- **Week 2 preparation**: Prepare for the topics and tasks of week 2.

#### Git Setup Commands

```bash
# Initialize repository
git init
git add .
git commit -m "Initial commit: Hello World full-stack application"

# Create GitHub repository and push
git remote add origin <your-github-repo-url>
git branch -M main
git push -u origin main

These commands guide you through setting up a Git repository for your project. Using Git is essential for version control and collaboration.


🎯 Week 1 Deliverables

Required Outputs

  1. Working Full-Stack Application
  • Spring Boot backend with REST API
  • React frontend with state management
  • Docker containerization
  1. Development Environment
  • Java 17+ with IDE configured
  • Node.js and React development setup
  • Docker and Docker Compose working
  1. Documentation
  • README with setup instructions
  • Code comments and basic API documentation
  • Git repository with initial commit
  1. Knowledge Gained
  • Modern Java features understanding
  • Spring Boot fundamentals
  • React basics and HTTP integration
  • Docker containerization concepts

🔍 Self-Assessment Questions

  1. Can you explain the difference between JDK, JRE, and JVM?
  2. What are the advantages of using Spring Boot over traditional Spring?
  3. How does React's component-based architecture work?
  4. What is the purpose of Docker and how does it differ from virtual machines?
  5. Can you describe the flow of data from frontend to backend in your application?

📖 Additional Learning Resources

Books (Free Online)

YouTube Channels

Practice Platforms


🚀 Preparation for Week 2

Pre-Week 2 Setup

  1. Install Database Tools
  • PostgreSQL or MySQL
  • Database GUI tool (DBeaver, pgAdmin)
  1. Reading List
  • Spring IoC and Dependency Injection concepts
  • React Hooks deep dive
  • Docker Compose networking
  1. Environment Check
  • Ensure all Week 1 applications are running
  • Verify Docker containers can communicate
  • Test API endpoints thoroughly

Week 2 Preview

  • Backend: Spring Core, IoC, and Dependency Injection
  • Frontend: React Hooks and component lifecycle
  • DevOps: Docker Compose and multi-container applications
  • Integration: Database integration and CRUD operations

💡 Pro Tips for Week 1

  1. Take Notes: Document everything you learn in a personal knowledge base
  2. Practice Daily: Code every day, even if just for 30 minutes
  3. Join Communities: Stack Overflow, Reddit r/SpringBoot, r/reactjs
  4. Ask Questions: Don't hesitate to seek help when stuck
  5. Build Portfolio: Start organizing your projects for future reference

Remember: This is a marathon, not a sprint. Focus on understanding concepts rather than rushing through topics. Quality over quantity!


Next Week: [Week 2 - Spring Core & React Components](coming-soon)