add step in setup file, fix methods in coffeeShopOrder class

coffee-shop-kata-solutions/src/main/java/bnymellon/codekatas/coffeeshopkata/CoffeeShopOrder.java

@@ -83,30 +83,32 @@ public List<String> getFoodItemsForOrder()
  * <p>
  * NOTE: The method highlights the usage of a record deconstruction pattern
  */
- public String generateReceipt()
+ public String generateReceiptForFoodItems()
  {
  double total = 0.0;
- StringBuilder receiptBuilder = new StringBuilder();
+ List<String> receiptItems = new ArrayList<>();
 
  for (Item item : this.orderItems)
  {
  if (item instanceof Donut(DonutType donutType))
  {
- receiptBuilder.append("Donut: ").append(donutType).append(" $").append(item.getPrice()).append("\n");
+ receiptItems.add("Donut: "+ donutType + " $" + item.getPrice());
+ total += item.getPrice();
  }
  else if (item instanceof Bagel(BagelType bagelType, SpreadType spreadType, boolean toasted))
  {
- receiptBuilder.append("Bagel: ").append(bagelType).append(" $").append(item.getPrice()).append("\n");
+ receiptItems.add("Bagel: "+ bagelType +" $" + item.getPrice());
+ total += item.getPrice();
  }
  else if (item instanceof Cookie(CookieType cookieType, boolean warmed))
  {
- receiptBuilder.append("Cookie: ").append(cookieType).append(" $").append(item.getPrice()).append("\n");
+ receiptItems.add("Cookie: " + cookieType +" $" + item.getPrice());
+ total += item.getPrice();
  }
- total += item.getPrice();
  }
+ receiptItems.add("Total: $" + total);
 
- receiptBuilder.append("Total: $").append(total);
- return receiptBuilder.toString();
+ return String.join("\n", receiptItems);
  }
 
  /**

coffee-shop-kata-solutions/src/main/java/bnymellon/codekatas/coffeeshopkata/beverage/Americano.java

@@ -16,7 +16,7 @@
 
 package bnymellon.codekatas.coffeeshopkata.beverage;
 
-public final class Americano implements CoffeeDrink
+public non-sealed class Americano implements CoffeeDrink
 {
  private final DrinkTemperature drinkTemperature;
 

coffee-shop-kata-solutions/src/test/java/bnymellon/codekata/coffeeshopkata/CoffeeShopTest.java

@@ -20,6 +20,7 @@
 import bnymellon.codekatas.coffeeshopkata.Item;
 import bnymellon.codekatas.coffeeshopkata.beverage.Americano;
 import bnymellon.codekatas.coffeeshopkata.beverage.CoffeeDrink;
+import bnymellon.codekatas.coffeeshopkata.beverage.DrinkTemperature;
 import bnymellon.codekatas.coffeeshopkata.beverage.Latte;
 import bnymellon.codekatas.coffeeshopkata.beverage.Macchiato;
 import bnymellon.codekatas.coffeeshopkata.food.Bagel;
@@ -46,24 +47,34 @@ public class CoffeeShopTest
  private Bagel bagel1;
  private Cookie cookie1;
  private Donut donut1;
+ private Americano americano;
 
  @BeforeEach
  public void setUp()
  {
  bagel1 = new Bagel(EVERYTHING, HERB_GARLIC_CREAM_CHEESE, true);
  cookie1 = new Cookie(CHOCOLATE_CHIP, true);
  donut1 = new Donut(GLAZED);
- itemList = List.of(bagel1, cookie1, donut1);
+ americano = new Americano(DrinkTemperature.HOT);
+ itemList = List.of(bagel1, cookie1, donut1, americano);
  coffeeShopOrder = new CoffeeShopOrder("Emilie", itemList);
  }
 
  @Test
- public void getFoodItemsForOrderTest()
+ public void testBagelRecord()
  {
- List<String> expected = List.of("CHOCOLATE_CHIP cookie", "EVERYTHING bagel with HERB_GARLIC_CREAM_CHEESE", "GLAZED donut");
- List<String> actual = coffeeShopOrder.getFoodItemsForOrder();
- Collections.sort(actual);
- assertEquals(expected, actual);
+ Bagel bagel2 = new Bagel(EVERYTHING, HERB_GARLIC_CREAM_CHEESE, true);
+ assertTrue(Bagel.class.isRecord());
+ assertEquals(bagel1, bagel2);
+ assertEquals("Bagel[bagelType=EVERYTHING, spreadType=HERB_GARLIC_CREAM_CHEESE, toasted=true]", bagel1.toString());
+ }
+
+ @Test
+ public void testBagelGetters()
+ {
+ assertTrue(bagel1.toasted());
+ assertEquals(bagel1.bagelType(), EVERYTHING);
+ assertEquals(bagel1.spreadType(), HERB_GARLIC_CREAM_CHEESE);
  }
 
  @Test
@@ -74,25 +85,18 @@ public void generateReceiptTest()
  Cookie: CHOCOLATE_CHIP $1.25
  Donut: GLAZED $1.75
  Total: $5.5""";
- assertEquals(expectedReceipt, coffeeShopOrder.generateReceipt());
+ assertEquals(expectedReceipt, coffeeShopOrder.generateReceiptForFoodItems());
  }
 
  @Test
- public void testBagelRecord()
+ public void getFoodItemsForOrderTest()
  {
- Bagel bagel2 = new Bagel(EVERYTHING, HERB_GARLIC_CREAM_CHEESE, true);
- assertTrue(Bagel.class.isRecord());
- assertEquals(bagel1, bagel2);
- assertEquals("Bagel[bagelType=EVERYTHING, spreadType=HERB_GARLIC_CREAM_CHEESE, toasted=true]", bagel1.toString());
+ List<String> expected = List.of("CHOCOLATE_CHIP cookie", "EVERYTHING bagel with HERB_GARLIC_CREAM_CHEESE", "GLAZED donut");
+ List<String> actual = coffeeShopOrder.getFoodItemsForOrder();
+ Collections.sort(actual);
+ assertEquals(expected, actual);
  }
 
- @Test
- public void testBagelGetters()
- {
- assertTrue(bagel1.toasted());
- assertEquals(bagel1.bagelType(), EVERYTHING);
- assertEquals(bagel1.spreadType(), HERB_GARLIC_CREAM_CHEESE);
- }
 
  @Test
  public void testSealedClasses()

coffee-shop-kata/README.md

@@ -1,6 +1,6 @@
 ## What is the Coffee Shop Kata? ##
 
-The Coffee Kata exercise is designed to provide a hands-on experience in learning and demonstrating the usage of latest
+The Coffee Shop Kata exercise is designed to provide a hands-on experience in learning and demonstrating the usage of latest
 Java features while comparing them with older.
 
 The domain for the kata is a Coffee Shop. There are several domain
@@ -29,9 +29,9 @@ problems; there are no TODOs in this module. For technical setup, follow the ins
 
 ## Getting started ##
 The following Java concepts will be useful in completing the kata:
-* [Pattern matching for switch](https://openjdk.org/jeps/441)
 * [Records](https://openjdk.org/jeps/395)
 * [Record patterns](https://openjdk.org/jeps/440)
+* [Pattern matching for switch](https://openjdk.org/jeps/441)
 * [Sealed classes](https://openjdk.org/jeps/409)
 
 There are failing tests in [CoffeeShopTest](jdk21/src/test/java/bnymellon/codekatas/coffeeshopkata/CoffeeShopTest.java).

coffee-shop-kata/SETUP.md

@@ -8,12 +8,18 @@
 ### Project setup
 1. Git clone the entire [code-katas](https://github.com/BNYMellon/CodeKatas) project from GitHub or download the project
  as a .zip file.
-2. Launch the project in the IDE as a maven project. You can find instructions on how to do
+2. Launch the project in the IDE and point to the pom.xml to be opened as a project.
+ You can find more instructions on how to do
  that [here](https://www.jetbrains.com/idea/guide/tutorials/working-with-maven/importing-a-project/).
-3. To verify that the Java 8 module is set up correctly,
+3. To use Java 20 preview features in IntelliJ IDEA, follow these steps:
+ - Go to File | Project Structure.
+ - Set the Project SDK to 20.
+ - Set the Project language level to "20 (Preview)...".
+ - Make sure you have the correct JDK selected.
+4. To verify that the Java 8 module is set up correctly,
  run [CoffeeShopTest](jdk8/src/test/java/bnymellon/codekatas/coffeeshopkata/CoffeeShopTest.java) in the
  jdk8 module - the class should compile and all tests will pass.
-4. To verify that the Java 21 module is set up correctly,
+5. To verify that the Java 21 module is set up correctly,
  run [CoffeeShopTest](jdk21/src/test/java/bnymellon/codekatas/coffeeshopkata/CoffeeShopTest.java) in the
  jdk21 module - the class should compile but most tests will fail.
 

coffee-shop-kata/jdk21/src/main/java/bnymellon/codekatas/coffeeshopkata/CoffeeShopOrder.java

@@ -61,7 +61,7 @@ public List<String> getFoodItemsForOrder() {
  *
  * @see <a href="https://openjdk.org/jeps/440">...</a>
  */
- public String generateReceipt() {
+ public String generateReceiptForFoodItems() {
  // TODO: Implement the receipt generation logic here.
  // Hint: look at the Java 8 implementation in the jdk8 module,
  // and the link above to see how record patterns can be utilized here

coffee-shop-kata/jdk21/src/main/java/bnymellon/codekatas/coffeeshopkata/beverage/Americano.java

@@ -16,7 +16,7 @@
 
 package bnymellon.codekatas.coffeeshopkata.beverage;
 
-public final class Americano implements CoffeeDrink
+public class Americano implements CoffeeDrink
 {
  private final DrinkTemperature drinkTemperature;
 

coffee-shop-kata/jdk21/src/main/java/bnymellon/codekatas/coffeeshopkata/beverage/CoffeeDrink.java

@@ -23,6 +23,7 @@
  * establish a controlled hierarchy for extensions.
  * Modify the following class to permit only the classes
  * Latte, Macchiato, and Americano, while excluding Tea.
+ * Make Americano, Macchiato "non-sealed" class and Latte as a "final" class
  *
  * NOTE: This class hierarchy shows the usage of sealed classes
  * @see <a href="https://openjdk.org/jeps/395">...</a>

coffee-shop-kata/jdk21/src/main/java/bnymellon/codekatas/coffeeshopkata/beverage/Latte.java

@@ -21,7 +21,7 @@
 import bnymellon.codekatas.coffeeshopkata.beverage.FlavorSyrup;
 import bnymellon.codekatas.coffeeshopkata.beverage.MilkType;
 
-public final class Latte implements CoffeeDrink
+public class Latte implements CoffeeDrink
 {
  private final MilkType milkType;
  private final boolean extraFoam;

coffee-shop-kata/jdk21/src/main/java/bnymellon/codekatas/coffeeshopkata/beverage/Macchiato.java

@@ -16,7 +16,7 @@
 
 package bnymellon.codekatas.coffeeshopkata.beverage;
 
-public final class Macchiato implements CoffeeDrink
+public class Macchiato implements CoffeeDrink
 {
  private final MilkType milkType;
  private final FlavorSyrup flavorSyrup;

coffee-shop-kata/jdk21/src/test/java/bnymellon/codekatas/coffeeshopkata/CoffeeShopTest.java

@@ -18,6 +18,7 @@
 
 import bnymellon.codekatas.coffeeshopkata.beverage.Americano;
 import bnymellon.codekatas.coffeeshopkata.beverage.CoffeeDrink;
+import bnymellon.codekatas.coffeeshopkata.beverage.DrinkTemperature;
 import bnymellon.codekatas.coffeeshopkata.beverage.Latte;
 import bnymellon.codekatas.coffeeshopkata.beverage.Macchiato;
 import bnymellon.codekatas.coffeeshopkata.food.Bagel;
@@ -45,42 +46,23 @@ public class CoffeeShopTest
  private Bagel bagel1;
  private Cookie cookie1;
  private Donut donut1;
+ private Americano americano;
 
  @BeforeEach
  public void setUp()
  {
  bagel1 = new Bagel(EVERYTHING, HERB_GARLIC_CREAM_CHEESE, true);
  cookie1 = new Cookie(CHOCOLATE_CHIP, true);
  donut1 = new Donut(GLAZED);
+ americano = new Americano(DrinkTemperature.HOT);
  itemList = new ArrayList<>();
  itemList.add(bagel1);
  itemList.add(cookie1);
  itemList.add(donut1);
+ itemList.add(americano);
  coffeeShopOrder = new CoffeeShopOrder("Emilie", itemList);
  }
 
- @Test
- public void getFoodItemsForOrderTest()
- {
- // TODO: Complete the method getFoodItemsForOrder() in CoffeeShopOrder to make this pass
- List<String> expected = List.of("CHOCOLATE_CHIP cookie", "EVERYTHING bagel with HERB_GARLIC_CREAM_CHEESE", "GLAZED donut");
- List<String> actual = coffeeShopOrder.getFoodItemsForOrder();
- Collections.sort(actual);
- assertEquals(expected, actual);
- }
-
- @Test
- public void generateReceiptTest()
- {
- // TODO: Complete the method generateReceipt() in CoffeeShopOrder to make this pass
- String expectedReceipt = """
- Bagel: EVERYTHING $2.5
- Cookie: CHOCOLATE_CHIP $1.25
- Donut: GLAZED $1.75
- Total: $5.5""";
- assertEquals(expectedReceipt, coffeeShopOrder.generateReceipt());
- }
-
  @Test
  public void testBagelRecord()
  {
@@ -100,6 +82,28 @@ public void testBagelGetters()
  assertEquals(bagel1.getSpreadType(), HERB_GARLIC_CREAM_CHEESE);
  }
 
+ @Test
+ public void generateReceiptForFoodItems()
+ {
+ // TODO: Complete the method generateReceipt() in CoffeeShopOrder to make this pass
+ String expectedReceipt = """
+ Bagel: EVERYTHING $2.5
+ Cookie: CHOCOLATE_CHIP $1.25
+ Donut: GLAZED $1.75
+ Total: $5.5""";
+ assertEquals(expectedReceipt, coffeeShopOrder.generateReceiptForFoodItems());
+ }
+
+ @Test
+ public void getFoodItemsForOrderTest()
+ {
+ // TODO: Complete the method getFoodItemsForOrder() in CoffeeShopOrder to make this pass
+ List<String> expected = List.of("CHOCOLATE_CHIP cookie", "EVERYTHING bagel with HERB_GARLIC_CREAM_CHEESE", "GLAZED donut");
+ List<String> actual = coffeeShopOrder.getFoodItemsForOrder();
+ Collections.sort(actual);
+ assertEquals(expected, actual);
+ }
+
  @Test
  public void testSealedClasses()
  {

coffee-shop-kata/jdk8/src/main/java/bnymellon/codekatas/coffeeshopkata/CoffeeShopOrder.java

@@ -31,6 +31,7 @@
 import bnymellon.codekatas.coffeeshopkata.food.CookieType;
 import bnymellon.codekatas.coffeeshopkata.food.Donut;
 import bnymellon.codekatas.coffeeshopkata.food.DonutType;
+import bnymellon.codekatas.coffeeshopkata.food.SpreadType;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -90,36 +91,38 @@ else if (item instanceof Donut)
  * NOTE: The method highlights the usage of a data extraction
  * HINT: Use instanceOf
  */
- public String generateReceipt()
+ public String generateReceiptForFoodItems()
  {
  double total = 0.0;
- StringBuilder receiptBuilder = new StringBuilder();
+ List<String> receiptItems = new ArrayList<>();
 
  for (Item item : this.orderItems)
  {
  if (item instanceof Donut)
  {
  Donut donut = (Donut) item;
  DonutType donutType = donut.getDonutType();
- receiptBuilder.append("Donut: ").append(donutType).append(" $").append(item.getPrice()).append("\n");
+ receiptItems.add("Donut: "+ donutType + " $" + item.getPrice());
+ total += item.getPrice();
  }
  else if (item instanceof Bagel)
  {
  Bagel bagel = (Bagel) item;
  BagelType bagelType = bagel.getBagelType();
- receiptBuilder.append("Bagel: ").append(bagelType).append(" $").append(item.getPrice()).append("\n");
+ receiptItems.add("Bagel: "+ bagelType +" $" + item.getPrice());
+ total += item.getPrice();
  }
  else if (item instanceof Cookie)
  {
  Cookie cookie = (Cookie) item;
  CookieType cookieType = cookie.getCookieType();
- receiptBuilder.append("Cookie: ").append(cookieType).append(" $").append(item.getPrice()).append("\n");
+ receiptItems.add("Cookie: " + cookieType +" $" + item.getPrice());
+ total += item.getPrice();
  }
- total += item.getPrice();
  }
+ receiptItems.add("Total: $" + total);
 
- receiptBuilder.append("Total: $").append(total);
- return receiptBuilder.toString();
+ return String.join("\n", receiptItems);
  }
 
  /**