👉 In the context of software development, particularly within the Java ecosystem, "iO" (Inter-Object Communication) refers to the mechanisms by which objects or components within a system exchange data and coordinate actions. This can occur through various methods, including method calls, message passing, shared memory, or event-driven architectures. Method calls are the most common form, where one object invokes a function or method on another object, passing parameters and receiving results. Message passing involves objects sending messages to each other, often through well-defined interfaces or APIs, which can be synchronous (blocking) or asynchronous (non-blocking). Shared memory allows multiple objects to access the same data space, facilitating direct communication but requiring careful management to avoid concurrency issues. Event-driven communication is another approach where objects react to events or triggers, such as user actions or system states, often using event listeners or callbacks. Each method has its own advantages and trade-offs in terms of performance, complexity, and scalability, making the choice of I/O strategy crucial for designing robust and efficient software systems.
