What methods and tools are used for organizing data streaming synchronization in Java?

In Java, the following methods and tools are used for stream data synchronization:

• The keyword synchronized — locks access to a critical section of code so that only one thread can execute it.
• Lock objects (e.g., ReentrantLock) from the java.util.concurrent.locks package — a more flexible locking mechanism.
• Volatile — guarantees visibility of variable changes between threads.
• Classes from java.util.concurrent — such as CountDownLatch, Semaphore, CyclicBarrier for thread coordination.
• Concurrent Collections — for example, ConcurrentHashMap, which are safe for use by multiple threads.

Example of using synchronized:

public class Counter {
    private int count = 0;

    public synchronized void increment() {
        count++;
    }

    public synchronized int getCount() {
        return count;
    }
}