Multithreading Interview Preparation Q/A

Explore the difference between checked and unchecked exceptions in Java, with examples like illegal argument, null pointer, and security exceptions, and learn strategies such as fail-fast and using concurrent APIs.

Explore immutability in Java, creating immutable objects with final fields and private constructors, and using copies for updates; learn serialization, transient and volatile distinctions to support safe concurrent programming.

Explore how synchronization controls access to shared resources in multithreaded Java, using synchronized methods, synchronized blocks, and static synchronization to prevent race condition.

Explore the differences between notify and notifyAll in Java: notify wakes one waiting thread, while notifyAll wakes all, both signaling via the object monitor inside a synchronized block.

Identify how deadlock arises when threads wait for each other's resources. Explore the four conditions: mutual exclusion, hold and wait, no preemption, circular wait, and practical mutex-based prevention strategies.

This lab demonstrates how deadlock occurs by locking two resources in opposite orders, and shows how VisualVM visualizes and traces the deadlock for debugging.

Learn how to implement the producer-consumer pattern using a blocking queue to safely synchronize threads and manage buffered data between producers and consumers.

Master producer-consumer synchronization by leveraging wait/notify to coordinate thread execution, a key topic for multithreading interview preparation q/a.