fun-with-lists-map

Fun with lists: map

Implement the method map, which accepts a linked list (head) and a mapping function, and returns a new linked list (head) where every element is the result of applying the given mapping method to each element of the original list.

For example: Given the list: 1 -> 2 -> 3, and the mapping function x => x * 2, map should return 2 -> 4 -> 6

The linked list is defined as follows:

class Node<T> {
  public T data;
  public Node<T> next;
  
  Node(T data, Node next) {
    this.data = data;
    this.next = next;
  }
  
  Node(T data) {
    this(data, null);
  }
}

Note: the list may be null and can hold any type of value.