What are locks and synchronization in Java?

What are locks and synchronization in Java?

Locks in Java are mechanisms that control access to shared resources by multiple threads, ensuring thread safety.

How do I implement a lock in my Java application?

You can use the ReentrantLock class from the java.util.concurrent.locks package to implement a lock.

What is the difference between synchronized methods and locks?

Synchronized methods are simpler to use but less flexible than locks, which allow more control over locking.

Can you give an example of using locks in Java?

Sure! Here's a simple example:

ReentrantLock lock = new ReentrantLock();

lock.lock();
try {
    // critical section code
} finally {
    lock.unlock();
}