How to clone ArrayList and also clone its contents?

Question

How can I clone an ArrayList and also clone its items in Java?

For example I have:

ArrayList dogs = getDogs();
ArrayList

        

Answer 1

Here is a solution using a generic template type:

public static  List copyList(List source) {
    List dest = new ArrayList();
    for (T item : source) { dest.add(item); }
    return dest;
}