Manually creating a new thread for every task is resource-intensive. Each thread consumes significant memory for its stack and requires OS-level overhead to create and destroy. The , introduced in JDK 5.0, solves these issues by decoupling task submission from thread execution through thread pools . Core Components of Java Concurrency
Efficient multithreading depends on three primary interfaces within the java.util.concurrent package: Manually creating a new thread for every task
The simplest interface, containing a single execute(Runnable) method to run tasks. introduced in JDK 5.0
Enables tasks to be scheduled with delays or run periodically. Common Thread Pool Types Manually creating a new thread for every task
Efficient Java Multithreading and Concurrency with Executors
A more robust sub-interface that adds lifecycle management, allowing you to shut down the pool and track task completion using Future objects.