Adding cards back into deck

I should be able to figure this out, but I'm completely lost.

The following code deals to a hand of choice a set number of cards (int toDeal):

Code :

---

private void deal(Hand hand, int toDeal)
    {
        for (int j = 0; j < toDeal; j++)
        {
            Hand temp = hand.handCards();
            Card[] s = new Card[temp.getNumCards() + 1];
            Card[] q = hand.getHand(); 
            for (int k = 0; k < temp.getNumCards(); k++)
            {
                s[k] = q[k];
            }
            s[s.length - 1] = deck.dealCard();
            hand.setHand(s);
        }
    }

---

to call it I run:

Code :

---

deal(playerHand, 5);

---

How do I make a method to add these cards back into the deck (the cards from the temp array)?

Thank you,
any ideas or code greatly appreciated
-sp4ce

Your question is not clear to me , if it is possible can you make it more clear.