• Write a version of a new public member function Bag#contains, assuming Bag has the following fields:

  private int count; private Coin[] contents; 

  Fill the code in the following skeleton:

  /** Return when a matching coin is found in the Bag * Return false otherwise. * @param item coin to match against (may be null) */ public boolean contains(Coin item) { // Your code here! }

• Do the same code assuming the following data structure:

  private class Node { public Coin data; public Node next; public Node(Coin c, Node n) { data = c; next = n; } } private Node head; public Bag() { head = null; }