How can I modify a collection in Java?

How can I modify a collection in Java?

You can modify a collection in Java using methods like add(), remove(), and clear() depending on the collection type.

Can you show me an example of adding an element to a list?

Sure! You can use the add() method. For example: List<String> list = new ArrayList<>(); list.add("Hello");.

What about removing an element?

To remove an element, use the remove() method. For example: list.remove("Hello"); will remove "Hello" from the list.

Are there any differences between ArrayList and LinkedList?

Yes, ArrayList is better for random access, while LinkedList is better for frequent insertions and deletions.