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Stage 4

Advanced Java

Concurrency, functional style, and the JVM.

Threads and virtual threads, the memory model, lambdas and streams, reflection, and what actually happens inside the JVM.

8 Lessons in this stage2 h 32 min

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Lessons in this stage

01
Multithreading
Advanced
Processes vs threads, the thread lifecycle, ExecutorService, and virtual threads (Project Loom).
22 min
02
Concurrency Principles
Advanced
Race conditions, deadlock, volatile, atomics, concurrent collections, and the Java Memory Model.
22 min
03
Lambdas & Functional Interfaces
Intermediate
From anonymous classes to lambdas, the core functional interfaces, and method references.
16 min
04
Functional Programming Principles
Intermediate
Pure functions, immutability, higher-order functions, and using Optional correctly.
16 min
05
The Stream API
Advanced
The pipeline model, map/filter/reduce, collectors, and when not to go parallel.
22 min
06
Annotations & Reflection
Advanced
Built-in and custom annotations, the reflection API, and how frameworks use them.
18 min
07
JVM Internals
Advanced
Class loading, runtime memory areas, JIT compilation, and garbage collection.
24 min
08
Modules (JPMS)
Advanced
module-info.java, strong encapsulation, and when modules are worth it.
12 min