Welcome to the comprehensive migration guide for JavaScript and TypeScript developers moving to Java and the Spring ecosystem!
Course Overview
This course is designed to help web developers transition smoothly from JavaScript/TypeScript to Java enterprise development. Whether you’re looking to work in enterprise environments, build robust web APIs, or explore modern JVM-based development, this guide will help you make the leap.
What You’ll Learn
- Java language fundamentals and core differences from JS/TS
- Object-oriented programming patterns and best practices
- Modern Java features including generics, streams, and functional programming
- Building robust Web APIs with Spring Boot
- Data persistence with Hibernate and Spring Data JPA
- Database version control with Flyway
- Testing, security, and containerization for production-ready applications
- JVM ecosystem tools and advanced development practices
Course Structure
Part I: Java Language Fundamentals
Module 1: Introduction & Setup
- Java ecosystem overview
- Development environment setup
- Your first Java program
- Comparing Java to JavaScript/TypeScript
Module 2: Java Primitives and Variables
- Type system overview
- Primitive data types
- Number types
- Variables and data types
Module 3: Arrays and Array Methods
- Array basics and declaration
- Multidimensional arrays
- Array manipulation methods
Module 4: Eclipse Tips and Tricks
- IDE mastery for productivity
- Debugging techniques
- Code generation and refactoring tools
- Keyboard shortcuts and workflow optimization
Module 5: Operators and Operands
- Arithmetic and logical operations
- Comparison and assignment operators
- Operator precedence and evaluation
- Bitwise operations
Module 6: Strings in Java
- String manipulation and methods
- String Comparison
- Escape sequences
- String Formatting
- Regular Expressions
Module 7: Control Statements
- Conditional logic (if, switch)
- Loops (for, while, do-while)
- Enhanced for loops
- Flow control best practices
Part II: Object-Oriented Programming
Module 8: Miscellaneous Java Concepts
- Packages and imports
- Access modifiers
- Static vs instance members
- Constants and final keyword
Module 9: Iteration Statements in Java
- Advanced looping techniques
- Iterator pattern
- Enhanced for-each loops
- Performance considerations
Module 10: Methods in Java
- Method design and overloading
- Parameter passing and return types
- Varargs and method signatures
- Method references and lambdas introduction
Module 11: Enumerations in Java
- Enum fundamentals
- Enum methods and constructors
- EnumSet and EnumMap
- Comparing to TypeScript enums
Module 12: Debugging Tools
- Debugging strategies and techniques
- Using IDE debugger effectively
- Logging frameworks introduction
- Profiling and performance analysis
Module 13: Object-Oriented Programming
- Classes and objects
- Inheritance and polymorphism
- Encapsulation principles
- Abstract classes and interfaces
Part III: Advanced Java Concepts
Module 14: OOP Interview Questions
- Common OOP design patterns
- Interface vs abstract class decisions
- Inheritance best practices
- Real-world OOP scenarios
Module 15: EXAM - OOP & Design Patterns
- Comprehensive OOP assessment
- Design pattern implementations
- Code review exercises
- Best practice evaluation
Module 16: Exception Handling
- Exception hierarchy and types
- Try-catch-finally blocks
- Custom exceptions
- Error handling strategies
Module 17: Java Collections Framework
- List, Set, and Map interfaces
- ArrayList, LinkedList, HashMap, TreeMap
- Collection algorithms and utilities
- Comparing to JavaScript arrays and objects
Module 18: Generics
- Generic classes and methods
- Type bounds and wildcards
- Generic collections
- Comparing to TypeScript generics
Module 19: Java Collections Deep Dive
- Performance characteristics
- Concurrent collections
- Custom collection implementations
- Best practices and pitfalls
Module 20: Functional Programming in Java
- Lambda expressions
- Method references
- Functional interfaces
- Comparing to JavaScript functions
Part IV: Modern Java & Advanced Topics
Module 21: Stream API
- Stream creation and operations
- Intermediate and terminal operations
- Parallel streams
- Comparing to JavaScript array methods
Module 22: Functional Programming Advanced
- Advanced lambda techniques
- Functional composition
- Monads and optional handling
- Performance considerations
Module 23: Input and Output & NIO
- File I/O operations
- Streams and readers/writers
- New I/O (NIO) features
- Path and Files API
Module 24: I/O in Java Internals
- Buffer management
- Channel operations
- Memory-mapped files
- Performance optimization
Module 25: Multithreading
- Thread creation and management
- Synchronization mechanisms
- Thread pools and executors
- Comparing to JavaScript async/await
Module 26: Multithreading Advanced
- Concurrent data structures
- Lock-free programming
- CompletableFuture and async patterns
- Performance tuning
Module 27: Date and Time in JDK
- Modern Date/Time API (JSR-310)
- LocalDate, LocalTime, LocalDateTime
- Time zones and formatting
- Comparing to JavaScript Date
Module 28: Java Reflection & Annotations
- Runtime type inspection
- Dynamic method invocation
- Creating and processing annotations
- Reflection best practices
Module 29: JDK API Deep Dive
- Essential JDK packages
- Utility classes and methods
- Performance-critical APIs
- Version compatibility
Module 30: Modules in Java & Java Apps
- Java Platform Module System (JPMS)
- Creating modular applications
- Module dependencies and services
- Migration strategies
Part V: Enterprise Development
Module 31: Internationalization & Localization
- Resource bundles
- Locale-specific formatting
- Unicode handling
- Multi-language application design
Module 32: Java Core Internals
- JVM architecture
- Memory management and garbage collection
- Class loading mechanism
- Performance profiling
Module 33: Logging in Java
- Logging frameworks (SLF4J, Logback)
- Log levels and configuration
- Structured logging
- Monitoring and alerting
Module 34: Java New Versions
- Java release cycle
- New features by version (8, 11, 17, 21+)
- Migration strategies
- Keeping up with Java evolution
Module 35: EXAM - Java Fundamentals
- Comprehensive Java assessment
- Real-world problem solving
- Code quality evaluation
- Performance optimization challenges
Module 36: Bonus Section
- Advanced design patterns
- Java best practices compendium
- Career guidance for Java developers
- Open source contribution guide
What Makes This Course Different
- Built for Node.js/TypeScript developers - Every concept explained through familiar comparisons
- Enterprise-focused - Learn the tools and patterns used in real enterprise environments
- Hands-on project integration - Practical examples with a companion project repository
- Comprehensive coverage - From basics to advanced enterprise patterns
- Modern Java focus - Covers latest Java features and best practices
Learning Path Recommendations
For Beginners
Start with Modules 1-13, then jump to Modules 16-18, and continue with the collections and streams modules.
For Experienced Developers
Begin with Module 1 for setup, then focus on Modules 13-20 for OOP and modern Java features, followed by the enterprise modules.
For Enterprise Preparation
Complete the full course with emphasis on Modules 25-36 for production-ready skills.
Companion Project
This course is paired with a hands-on Enterprise Task Management System built with Java and Spring Boot. Follow along as we implement each concept in a real-world application.
🔗 Enterprise Task Management Project Repository
Resources
- Code Samples - Side-by-side Node.js/TypeScript and Java examples
- Project Setup Guide - Development environment configuration
- Quick Reference - Cheat sheets and comparison tables
- Practice Exercises - Hands-on coding challenges
Course Progress Tracking
Track your progress through each module and take assessments to validate your learning. The course includes two major examinations and numerous practical exercises.
🚀 Ready to Start?
Begin your journey from Node.js/TypeScript to Java enterprise development with Module 1: Introduction & Setup!
This course represents over 36 comprehensive modules covering everything from Java basics to enterprise-level development. Each module builds upon previous concepts while providing practical, real-world examples that JavaScript and TypeScript developers can easily understand and apply.