JavaMemoryModel

The Java Memory Model (JMM) defines how threads in a Java program interact through shared memory, ensuring predictable behavior in concurrent execution. It specifies how and when changes made by one thread become visible to others, managing issues like race conditions and visibility. By establishing rules for reading and writing shared data, the JMM helps developers write thread-safe programs that work correctly across different hardware and compiler optimizations. Essentially, it acts as a blueprint that guarantees consistent communication and data consistency between multiple threads executing simultaneously.