public void shuffle ()

{

int[] front = new int[cards.length/2];

for (int k = 0; k < front.length; k++)

front[k] = cards[k];

int[] back = new int[cards.length/2];

for (int k = 0; back.length; k++)

back[k] = cards[back.length + k];

int[] newCards = new int[cards.length]

int j = 0;

while (j < newCards.length)

{

if (k % 2 == 1)

newCards[k] = back[cards.length/2];

else

newCards[k] = front [k/2];

}

cards = newCards;

}