How is the transformation of a linked list data structure into another format or representation implemented?

Transforming a linked list into another format or representation is usually done by traversing all its elements and recording the data into the desired structure. For example, you can convert a linked list into an array, a string, or another collection.

Example of converting a linked list into an array in Java:

List<Integer> list = new ArrayList<>();
Node current = head;
while (current != null) {
    list.add(current.data);
    current = current.next;
}
int[] array = list.stream().mapToInt(i -> i).toArray();

Thus, by traversing the linked list, we gather data into the required format. Similarly, it can be converted into JSON, XML, or other representations by forming the appropriate structure from the list elements.