Java Iterators vs For-Each: Which One to Use?

What are the main differences between Java iterators and for-each loops?

Java iterators provide more control over the iteration process, allowing removal of elements, while for-each loops are simpler and more readable.

When should I use an iterator instead of a for-each loop?

Use an iterator when you need to modify the collection during iteration or when you need to traverse in a specific way.

Are there any performance differences between the two?

For-each loops are generally more efficient for simple iterations, but iterators can be optimized for specific use cases.

Can you give an example of both in code?

Sure! For-each: for (String item : list) { System.out.println(item); } and Iterator: Iterator<String> it = list.iterator(); while (it.hasNext()) { System.out.println(it.next()); }.