How do I use the forEach method in Java?

How do I use the forEach method in Java?

The forEach method in Java is used to iterate over elements in a collection. You can use it with lists, sets, and maps.

Can you show me an example of using forEach with a list?

Sure! Here's a simple example:

List<String> names = Arrays.asList("Alice", "Bob", "Charlie");
names.forEach(name -> System.out.println(name));

What if I want to modify the elements while iterating?

The forEach method is not designed for modifying elements. You should use a traditional for loop or an iterator for that.

Are there any performance considerations with forEach?

Yes, forEach can be less efficient than traditional loops for large collections, especially if you're performing complex operations.