Added Composite pattern for Java

JavaSource/pom.xml

@@ -68,6 +68,12 @@
                             <mainClass>ru.akhcheck.patterns.bridge.MainBridge</mainClass>
                         </configuration>
                     </execution>
+                    <execution>
+                        <id>Composite</id>
+                        <configuration>
+                            <mainClass>ru.akhcheck.patterns.composite.MainComposite</mainClass>
+                        </configuration>
+                    </execution>
                 </executions>
             </plugin>
         </plugins>

JavaSource/src/main/java/ru/akhcheck/patterns/composite/Breakfast.java

@@ -0,0 +1,8 @@
+package ru.akhcheck.patterns.composite;
+
+public class Breakfast extends Dish {
+    @Override
+    public int GetCalories() {
+        return super.GetCalories() + 10;
+    }
+}

JavaSource/src/main/java/ru/akhcheck/patterns/composite/Dish.java

@@ -0,0 +1,21 @@
+package ru.akhcheck.patterns.composite;
+
+import java.util.ArrayList;
+
+public class Dish implements DishComponent{
+    private ArrayList<DishComponent> components = new ArrayList<>();
+
+    public int GetCalories() {
+        int calories = 0;
+        for (DishComponent component: components) {
+            calories += component.GetCalories();
+        }
+        return calories;
+    }
+
+    public Dish add(DishComponent component) {
+        components.add(component);
+        return this;
+    }
+
+}

JavaSource/src/main/java/ru/akhcheck/patterns/composite/DishComponent.java

@@ -0,0 +1,5 @@
+package ru.akhcheck.patterns.composite;
+
+public interface DishComponent {
+    int GetCalories();
+}

JavaSource/src/main/java/ru/akhcheck/patterns/composite/MainComposite.java

@@ -0,0 +1,16 @@
+package ru.akhcheck.patterns.composite;
+
+public class MainComposite {
+
+
+    public static void main(String[] args) {
+        Dish ration = new Dish().add(
+                new Breakfast().add(
+                        new Milk()
+                ).add(
+                        new Milk()
+                )
+        ).add(new Milk());
+        System.out.println(ration.GetCalories());
+    }
+}

JavaSource/src/main/java/ru/akhcheck/patterns/composite/Milk.java

@@ -0,0 +1,9 @@
+package ru.akhcheck.patterns.composite;
+
+public class Milk implements DishComponent {
+
+    @Override
+    public int GetCalories() {
+        return 100;
+    }
+}