What are some common errors in Java's foreach loop?

What are some common errors in Java's foreach loop?

Some common errors include modifying the collection while iterating, using the wrong variable type, and null pointer exceptions.

Can you explain why modifying the collection causes issues?

Modifying the collection during iteration can lead to ConcurrentModificationException, as the iterator becomes invalid.

What should I do instead if I need to modify the collection?

You can create a separate list to store items to be removed or use an Iterator to safely remove elements.

Are there any best practices for using foreach loops?

Yes, always avoid modifying the collection directly, use proper types, and handle potential null values.