Advanced Java: Threads and Concurrency

Introduction

• Exploring advanced topics in Java threads
• What you should know
• Exercise files

1. Synchronization

• Memory access in Java threads and its problems
• Memory inconsistency: Data race
• Thread interference: Race condition
• Synchronization: Purpose and use
• Implementing synchronization
• Challenge: Inventory manager
• Solution: Inventory manager

2. Asynchronous Programming

• The need for non-blocking operations
• Future
• CompletableFuture
• Implementing CompletableFuture
• Challenge: Asynchronous computations
• Solution: Asynchronous computations

3. Executors

• Managing thread execution: Thread pools and executors
• ExecutorService
• Implementing an executor: ExecutorService in action
• Executing tasks periodically with ScheduledExecutorService
• Challenge: Number magic and voting simulator
• Solution: Number magic and voting simulator

4. Fork/Join Framework

• Thread execution and the fork/join framework
• Worker threads and work stealing
• The core classes of the fork/join framework
• Using the fork/join framework
• Challenge: Multiples calculator
• Solution: Multiples calculator

5. Concurrent Data Structures

• Thread safety in collections
• The need for concurrent collections
• Using concurrent collections
• Synchronized versus concurrent collections

6. Introduction to Project Loom

• The need for a new concurrent programming model
• Project Loom and virtual threads
• Platform threads versus virtual threads

7. Virtual Threads in Action

• Ways to create virtual threads
• Comparing performance: Platform versus virtual threads
• Benefits of using virtual threads
• Things to keep in mind when using virtual threads

Conclusion

• Next steps