How do I use locks in Java?

How do I use locks in Java?

In Java, you can use the Lock interface from the java.util.concurrent.locks package. Would you like an example?

Yes, please provide an example of using a lock.

Sure! Here's a simple example:

import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

public class LockExample {
    private final Lock lock = new ReentrantLock();

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

What happens if I forget to unlock the lock?

If you forget to unlock the lock, it can lead to a deadlock situation where other threads are blocked indefinitely.