31 create common classes v0.1

src/main/java/seedu/duke/data/Menu.java

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+package seedu.duke.data;
+
+import seedu.duke.data.dish.Dish;
+
+import java.util.ArrayList;
+
+public class Menu {
+    private ArrayList<Dish> menuItems;
+
+    public Menu(ArrayList<Dish> menuItems) {
+        this.menuItems = menuItems;
+    }
+}

src/main/java/seedu/duke/data/dish/Dish.java

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+package seedu.duke.data.dish;
+
+import java.util.ArrayList;
+
+public class Dish {
+    private String name;
+    private ArrayList<Ingredient> ingredients;
+    private double price;
+
+    public Dish(String name, ArrayList<Ingredient> ingredients, double price) {
+        this.name = name;
+        this.ingredients = ingredients;
+        this.price = price;
+    }
+}

src/main/java/seedu/duke/data/dish/Ingredient.java

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+package seedu.duke.data.dish;
+
+public class Ingredient {
+    private final String name;
+
+    public Ingredient(String name) {
+        this.name = name;
+    }
+}

src/test/java/seedu/duke/data/MenuTest.java

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+package seedu.duke.data;
+
+//import static org.junit.jupiter.api.Assertions.*;
+
+class MenuTest {
+
+}

src/test/java/seedu/duke/data/dish/DishTest.java

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+package seedu.duke.data.dish;
+
+//import static org.junit.jupiter.api.Assertions.*;
+
+class DishTest {
+
+}

src/test/java/seedu/duke/data/dish/IngredientTest.java

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+package seedu.duke.data.dish;
+
+//import static org.junit.jupiter.api.Assertions.*;
+
+class IngredientTest {
+
+}