What are some common mistakes when using forEach in Java?

What are some common mistakes when using forEach in Java?

Some common mistakes include modifying the collection while iterating, using the wrong variable scope, and not handling exceptions properly.

Can you explain why modifying the collection is a mistake?

Modifying the collection during iteration can lead to ConcurrentModificationException, which disrupts the loop.

What should I do instead?

Instead, create a separate list to store changes or use an Iterator to safely remove elements.

Are there performance issues with forEach?

Yes, forEach can be less efficient than traditional loops in some cases, especially with large collections.