Resolve "Oppgave 2"

Closes #2 (closed)

src/main/java/no/ntnu/idatt2003/demo/DeckOfCards.java

+package no.ntnu.idatt2003.demo;
+
+import java.util.ArrayList;
+import java.util.Collections;
+
+/**
+ * Represents a Deck of cards, in an arraylist containing playing cards.
+ */
+public class DeckOfCards {
+  private final ArrayList<PlayingCard> deckOfCards;
+
+  /**
+   * Instantiates a new Deck of cards.
+   */
+  public DeckOfCards() {
+    deckOfCards = new ArrayList<PlayingCard>();
+
+  }
+
+  /**
+   * Fills deck array list, with playing card objects. The method uses a two-dimensional loop to
+   * through every possible combinations of playing cards and adds them to the deck of cards.
+   * The method uses Collections shuffle to make sure the order of the playing cards are random.
+   *
+   * @return deckOfCards (array list)
+   */
+  public ArrayList<PlayingCard> FillDeck() {
+    char[] suits = { 'S', 'H', 'D', 'C' };
+    for (char suit : suits) {
+      for (int value = 1; value <= 13; value++) {
+        deckOfCards.add(new PlayingCard(suit, value));
+      }
+    }
+    Collections.shuffle(deckOfCards);
+    return deckOfCards;
+  }
+}