Advanced Java: Streams, Concurrency, JVM and Spring

What you'll learn

• Write functional-style code with lambdas, streams and Optional.
• Build concurrent programs with threads, executors, CompletableFuture and virtual threads.
• Understand memory, garbage collection and the Java memory model.
• Access databases with JDBC and JPA and build REST APIs with Spring Boot.
• Test, log, secure, package and containerize Java services.

Syllabus

Module 1: Modern Language Features

1. Generics In Depth
2. Lambdas & Method References
3. The Stream API
4. Optional
5. Records, Sealed Types & Pattern Matching

Module 2: Concurrency

1. Threads & Runnable
2. Synchronization
3. Executors & Futures
4. CompletableFuture
5. Concurrent Collections
6. Virtual Threads (Java 21)

Module 3: JVM & Performance

1. Memory & Garbage Collection
2. The Java Memory Model
3. Profiling & Benchmarking

Module 4: I/O & Persistence

1. NIO.2 File I/O
2. JDBC

Module 5: Enterprise Java, Spring & REST

1. Servlets & HTTP
2. JSP & the MVC Pattern
3. JPA & Hibernate
4. What Dependency Injection Solves
5. Spring Boot, Spring Data JPA & Annotations
6. Building a REST Controller End to End
7. API Status Codes & Error Handling

Module 6: Build, Test & Ship

1. Packaging & Deployment
2. JUnit 5 In Depth
3. Mockito Basics
4. Maven pom.xml, Lifecycle & Gradle at a Glance

Module 7: Design Patterns

1. Singleton Pattern
2. Factory Pattern
3. Builder Pattern
4. Observer Pattern

Module 8: Logging

1. SLF4J & Structured Logging

Module 9: Security Basics

1. Auth, JWT & Password Hashing

Module 10: Cloud-Native Java

1. Containerizing a Spring Boot App
2. Reactive Programming Intro