Problem Statement
What are Coroutines in Kotlin?
Explanation
Coroutines are lightweight concurrency primitives in Kotlin that allow you to write asynchronous code that looks and behaves like sequential code, avoiding callback hell and making async programming much more readable. Unlike threads which are expensive system resources, you can launch thousands of coroutines without significant overhead.
Coroutines are suspended rather than blocked, meaning they don't occupy a thread while waiting for results, freeing the thread to do other work. This makes them ideal for IO operations, network calls, or any waiting that would normally block a thread.
Kotlin coroutines are built into the language with suspend functions and integrate seamlessly with existing code, providing structured concurrency that makes managing lifecycle and cancellation much easier than traditional threading.
