ConcurrentHashMap vs Redis: Choosing the Right Cache for Your Needs

ConcurrentHashMap<String, Object> is a thread-safe hash table implementation in Java, suitable for basic caching purposes. However, it's not a complete substitute for Redis. \n\nRedis is a high-performance in-memory data store with features like persistence, pub-sub, and transactions. It supports various data structures (strings, hashes, lists, sets, sorted sets), offering rich command operations. \n\nConcurrentHashMap<String, Object> is a simple hash table, limited to storing key-value pairs and lacking the complex features and data structures of Redis. It's suitable for basic caching needs, such as storing temporary data or simple counters. \n\nFor Redis functionalities, use a Redis client library to connect and manipulate the Redis database.