← Exit to Module 14: Concurrency and Multithreading lessons
Module progress · 0%Lesson · 20 min
Module 14: Concurrency and Multithreading
Lesson focusSynchronization Mechanisms
Use synchronized blocks, ReentrantLock, and volatile fields correctly.
01 · 16 minThread Lifecycle & Runnable vs CallableLocked02 · 20 minSynchronization MechanismsLocked03 · 18 minLocks, Conditions, and AtomicsLocked04 · 20 minExecutor Services & Thread PoolsLocked05 · 22 minCompletableFuture in DepthLocked06 · 18 minCommon Concurrency IssuesLocked07 · 35 minMini-Project: Concurrent Download ManagerLocked
synchronized enforces mutual exclusion and provides happens-before ordering.
ReentrantLock offers timed locks, fairness, and manual control; always release in finally blocks.
volatile ensures visibility but not atomicity—use Atomic classes for compound actions.