๐ฆ Bank Transaction Concurrency ProblemSubhahu JainยทJul 8, 2025ยท2 min readTable of contentsProblem Statement๐ก Solution Approaches1. Basic Thread-Safe Account (Synchronized Methods)Key MechanicsCase 1: Simple Deposit-Withdraw (No Conflict)Case 2: Concurrent Deposits (Lost Update Problem Prevented)Case 3: Overdraft PreventionWhere It Fails (Edge Cases)Problem 1: Nested Operations DeadlockProblem 2: Liveness Issues (Performance)Problem 3: Compound Actions Not AtomicJavaScriptJavainterviewconcurrency