Java provides various abstractions for multithreading such as Thread, Executors, and CompletableFuture.
Understanding the difference between creating threads, managing their lifecycles, and synchronization mechanisms is crucial.
Shared mutable state is a root cause of most concurrency bugs, leading to inconsistent results in multithreaded environments.
Best practices include using higher-level constructs, avoiding manual thread management, and being cautious with synchronization to prevent concurrency issues.