What are the different types of locks in Java?

What are the different types of locks in Java?

In Java, there are several types of locks, including intrinsic locks, explicit locks, read-write locks, and optimistic locks.

Can you explain intrinsic locks?

Intrinsic locks, also known as monitor locks, are built into Java's synchronized methods and blocks. They allow only one thread to access a block of code at a time.

What about explicit locks?

Explicit locks, like those provided by the ReentrantLock class, give more control over locking mechanisms, allowing features like try-lock and timed lock.

What are read-write locks?

Read-write locks allow multiple threads to read data simultaneously but give exclusive access to one thread for writing, improving performance in read-heavy scenarios.

Can you give an example of when to use optimistic locks?

Optimistic locks are useful in scenarios where conflicts are rare. They allow multiple threads to work without locking, checking for conflicts before committing changes.