CopyOnWriteArrayList vs SynchronizedList: Which One to Use?

What are the main differences between CopyOnWriteArrayList and SynchronizedList?

CopyOnWriteArrayList creates a new copy of the array on each write, while SynchronizedList wraps a regular list to synchronize access.

When should I use CopyOnWriteArrayList?

Use CopyOnWriteArrayList when you have more reads than writes, as it provides better performance for read-heavy scenarios.

Are there any downsides to using CopyOnWriteArrayList?

Yes, the main downside is that it can be memory-intensive due to creating a new copy of the array on each write.

What about SynchronizedList? Is it better for write-heavy scenarios?

SynchronizedList is better for write-heavy scenarios as it allows multiple threads to write to the list without creating copies.