Java: Synchronized and Locks

It ensures mutual exclusion. Frame the concept in practical terms so you can explain it during interview discussion.

The 'synchronized' keyword in Java is used to lock a method or block of code, ensuring that only one thread executes it at a time. This prevents race conditions by allowing threads exclusive access to the critical section. For example, in a flash sale scenario, 'synchronized' can ensure only one thread processes a checkout at a time.