Code runs on the JVM regardless of the underlying OS.

When multiple threads access shared data, the OS must prevent data corruption.

Features like Buffers and Channels allow for non-blocking I/O, mirroring modern OS capabilities.

Java uses the synchronized keyword to lock objects.

The OS provides the memory; Java divides it for objects (Heap) and methods (Stack).

Threads communicate using wait() and notify() to manage resource flow.

Java developers must manage resource ordering to avoid system freezes. 🧠 Memory Management

Java provides the Thread class and Runnable interface. Scheduling: The JVM maps Java threads to native OS threads.