Initial commit

Author: hossamdash

.vscode/launch.json

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+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "java",
+            "name": "Launch Current File",
+            "request": "launch",
+            "mainClass": "${file}"
+        },
+        {
+            "type": "java",
+            "name": "Launch Card",
+            "request": "launch",
+            "mainClass": "Card",
+            "projectName": "java-oop-example_a38d6e27",
+            "vmArgs": "-enableassertions"
+        },
+        {
+            "type": "java",
+            "name": "Launch DisplayDeck",
+            "request": "launch",
+            "mainClass": "DisplayDeck",
+            "projectName": "java-oop-example_a38d6e27"
+        }
+    ]
+}

README.md

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+## Video Link
+https://youtu.be/Cp5L_YFjaD4
+
+## Getting Started
+
+Welcome to the VS Code Java world. Here is a guideline to help you get started to write Java code in Visual Studio Code.
+
+## Folder Structure
+
+The workspace contains two folders by default, where:
+
+- `src`: the folder to maintain sources
+- `lib`: the folder to maintain dependencies
+
+## Dependency Management
+
+The `JAVA DEPENDENCIES` view allows you to manage your dependencies. More details can be found [here](https://github.com/microsoft/vscode-java-pack/blob/master/release-notes/v0.9.0.md#work-with-jar-files-directly).

src/Card.class

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+import java.util.Arrays;
+
+public class Card {
+    private final String suit;
+    private final String rank;
+
+    // ranks
+    public final static String[] cardRanks = {"Ace", "Deuce", "Three", "Four", "Five" , "Six", "Seven", "Eight", "Nine", "Ten", "Jack", "Queen", "King"};
+    
+    // suits
+    public final static String[] cardSuits = {"Diamonds", "Clubs", "Hearts", "Spades"};
+
+    public Card(String rank, String suit) {
+        assert isValidRank(rank);
+        assert isValidSuit(suit);
+        this.rank = rank;
+        this.suit = suit;
+    }
+
+    public String getSuit() {
+        return suit;
+    }
+
+    public String getRank() {
+        return rank;
+    }
+
+    // we have to run the compiled java class with options '-ea' in order to enable assertions and be able to throw exceptions on invalid parame. example: 'java -ea Card'
+
+    public static boolean isValidRank(String rank) {
+        return Arrays.stream(cardRanks).anyMatch(rank::equals);
+    }
+
+    public static boolean isValidSuit(String suit) {
+        return Arrays.stream(cardSuits).anyMatch(suit::equals);
+    }
+
+    public static void main(String[] args) {
+        System.out.println(isValidSuit("Diamond"));
+        // wrong card suit
+        Card c1 = new Card("Ace", "Diamond");
+        System.out.println(c1);
+    }
+}
+

src/Card.java

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+public class Deck {
+
+    public static int numSuits = 4;
+    public static int numRanks = 13;
+    public static int numCards = numSuits * numRanks;
+
+    private Card[][] cards;
+
+    public Deck() {
+        cards = new Card[numSuits][numRanks];
+        for (int suit = 0; suit < Card.cardSuits.length; suit++) {
+            for (int rank = 0; rank < Card.cardRanks.length; rank++) {
+                cards[suit][rank] = new Card(Card.cardRanks[rank], Card.cardSuits[suit]);
+            }
+        }
+    }
+
+    public Card getCard(int suit, int rank) {
+        return cards[suit][rank];
+    }
+}

src/Deck.java

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+public class DisplayDeck {
+    public static void main(String[] args) {
+        Deck deck = new Deck();
+        for (int suit = 0; suit < Card.cardSuits.length; suit++) {
+            for (int rank = 0; rank < Card.cardRanks.length; rank++) {
+                Card card = deck.getCard(suit, rank);
+                System.out.format("%s of %s%n",
+                card.getRank(),
+                card.getSuit());
+            }
+        }
+    }
+}