Adding more examples.

code-samples/03-Design-Patterns/06-bridge/src/main/java/com/algogrit/java/App.java

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+package com.algogrit.java;
+
+/**
+ * Hello world!
+ *
+ */
+public class App
+{
+    public static void main( String[] args )
+    {
+        // System.out.println( "Hello World!" );
+
+        Vehicle dieselCar = new Car(new DieselEngine());
+
+        dieselCar.runsOn();
+    }
+}

code-samples/03-Design-Patterns/06-bridge/src/main/java/com/algogrit/java/Car.java

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+package com.algogrit.java;
+
+// PetrolEngine
+// DieselEngine
+// HybridEngine
+// ElectricEngine
+
+public class Car implements Vehicle {
+  Engine engine;
+
+  public Car() {
+    this.engine = new ElectricEngine();
+  }
+
+  public Car(Engine engine) {
+    this.engine = engine;
+  }
+
+  public void runsOn() {
+    System.out.println("Car runs on: " + engine.getFuelType());
+  }
+}

code-samples/03-Design-Patterns/06-bridge/src/main/java/com/algogrit/java/DieselEngine.java

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+package com.algogrit.java;
+
+public class DieselEngine implements Engine {
+  public String getFuelType() {
+    return "Diesel";
+  };
+}

code-samples/03-Design-Patterns/06-bridge/src/main/java/com/algogrit/java/ElectricEngine.java

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+package com.algogrit.java;
+
+public class ElectricEngine implements Engine {
+  public String getFuelType() {
+    return "Electricity";
+  };
+}

code-samples/03-Design-Patterns/06-bridge/src/main/java/com/algogrit/java/Engine.java

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+package com.algogrit.java;
+
+public interface Engine {
+  String getFuelType();
+}

code-samples/03-Design-Patterns/06-bridge/src/main/java/com/algogrit/java/MotorCycle.java

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+package com.algogrit.java;
+
+// PetrolEngine
+// ElectricEngine
+
+public class MotorCycle implements Vehicle {
+  public void runsOn() {
+    System.out.println("MotorCycle runs on: ");
+  }
+}

code-samples/03-Design-Patterns/06-bridge/src/main/java/com/algogrit/java/Truck.java

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+package com.algogrit.java;
+
+// DieselEngine
+// ElectricEngine
+
+public class Truck implements Vehicle {
+  Engine engine;
+
+  public void runsOn() {
+    System.out.println("Truck runs on: ");
+  }
+}

code-samples/03-Design-Patterns/06-bridge/src/main/java/com/algogrit/java/Vehicle.java

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+package com.algogrit.java;
+
+public interface Vehicle {
+  void runsOn();
+}

code-samples/03-Design-Patterns/10-template/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>com.algogrit.java</groupId>
+  <artifactId>template</artifactId>
+  <version>1.0-SNAPSHOT</version>
+
+  <name>template</name>
+  <!-- FIXME change it to the project's website -->
+  <url>http://www.example.com</url>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <maven.compiler.source>1.7</maven.compiler.source>
+    <maven.compiler.target>1.7</maven.compiler.target>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.11</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
+      <plugins>
+        <!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
+        <plugin>
+          <artifactId>maven-clean-plugin</artifactId>
+          <version>3.1.0</version>
+        </plugin>
+        <!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
+        <plugin>
+          <artifactId>maven-resources-plugin</artifactId>
+          <version>3.0.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <version>3.8.0</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-surefire-plugin</artifactId>
+          <version>2.22.1</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-jar-plugin</artifactId>
+          <version>3.0.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-install-plugin</artifactId>
+          <version>2.5.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-deploy-plugin</artifactId>
+          <version>2.8.2</version>
+        </plugin>
+        <!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
+        <plugin>
+          <artifactId>maven-site-plugin</artifactId>
+          <version>3.7.1</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-project-info-reports-plugin</artifactId>
+          <version>3.0.0</version>
+        </plugin>
+      </plugins>
+    </pluginManagement>
+  </build>
+</project>

code-samples/03-Design-Patterns/10-template/src/main/java/com/algogrit/java/App.java

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+package com.algogrit.java;
+
+/**
+ * Hello world!
+ *
+ */
+public class App
+{
+    public static void main( String[] args )
+    {
+        House glassHouse = new GlassHouse();
+        glassHouse.build();
+
+        House concreteHouse = new GlassHouse();
+        concreteHouse.build();
+    }
+}

code-samples/03-Design-Patterns/10-template/src/main/java/com/algogrit/java/ConcreteHouse.java

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+package com.algogrit.java;
+
+public class ConcreteHouse extends House {
+  @Override
+  public void layWalls() {
+    System.out.println("Lay concrete walls");
+  }
+}

code-samples/03-Design-Patterns/10-template/src/main/java/com/algogrit/java/GlassHouse.java

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+package com.algogrit.java;
+
+public class GlassHouse extends House {
+  @Override
+  public void layWalls() {
+    System.out.println("Lay glass walls");
+  }
+}

code-samples/03-Design-Patterns/10-template/src/main/java/com/algogrit/java/House.java

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+package com.algogrit.java;
+
+public abstract class House {
+  public void build() {
+    System.out.println("Laying foundation...");
+    this.layWalls();
+    System.out.println("Lay the roof");
+    System.out.println("Place windows and doors");
+    System.out.println("Finish with interiors");
+  };
+
+  abstract void layWalls();
+}

code-samples/03-Design-Patterns/10-template/src/test/java/com/algogrit/java/AppTest.java

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+package com.algogrit.java;
+
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
+/**
+ * Unit test for simple App.
+ */
+public class AppTest 
+{
+    /**
+     * Rigorous Test :-)
+     */
+    @Test
+    public void shouldAnswerWithTrue()
+    {
+        assertTrue( true );
+    }
+}

code-samples/03-Design-Patterns/11-iterator/iterator.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="EclipseModuleManager">
+    <conelement value="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER" />
+    <src_description expected_position="2">
+      <src_folder value="file://$MODULE_DIR$/src/main/java" expected_position="0" />
+      <src_folder value="file://$MODULE_DIR$/src/test/java" expected_position="1" />
+      <src_folder value="file://$MODULE_DIR$/target/generated-sources/annotations" expected_position="4" />
+      <src_folder value="file://$MODULE_DIR$/target/generated-test-sources/test-annotations" expected_position="5" />
+    </src_description>
+  </component>
+  <component name="NewModuleRootManager">
+    <output url="file://$MODULE_DIR$/target/classes" />
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/target/generated-sources/annotations" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/target/generated-test-sources/test-annotations" isTestSource="false" />
+    </content>
+    <orderEntry type="jdk" jdkName="1.8" jdkType="JavaSDK" />
+    <orderEntry type="library" name="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER" level="application" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

code-samples/03-Design-Patterns/11-iterator/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>com.algogrit.java</groupId>
+  <artifactId>iterator</artifactId>
+  <version>1.0-SNAPSHOT</version>
+
+  <name>iterator</name>
+  <!-- FIXME change it to the project's website -->
+  <url>http://www.example.com</url>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <maven.compiler.source>1.8</maven.compiler.source>
+    <maven.compiler.target>1.8</maven.compiler.target>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.11</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
+      <plugins>
+        <!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
+        <plugin>
+          <artifactId>maven-clean-plugin</artifactId>
+          <version>3.1.0</version>
+        </plugin>
+        <!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
+        <plugin>
+          <artifactId>maven-resources-plugin</artifactId>
+          <version>3.0.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <version>3.8.0</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-surefire-plugin</artifactId>
+          <version>2.22.1</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-jar-plugin</artifactId>
+          <version>3.0.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-install-plugin</artifactId>
+          <version>2.5.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-deploy-plugin</artifactId>
+          <version>2.8.2</version>
+        </plugin>
+        <!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
+        <plugin>
+          <artifactId>maven-site-plugin</artifactId>
+          <version>3.7.1</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-project-info-reports-plugin</artifactId>
+          <version>3.0.0</version>
+        </plugin>
+      </plugins>
+    </pluginManagement>
+  </build>
+</project>

code-samples/03-Design-Patterns/11-iterator/src/main/java/com/algogrit/java/App.java

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+package com.algogrit.java;
+
+/**
+ * Hello world!
+ *
+ */
+public class App
+{
+    public static void main( String[] args )
+    {
+        IntegerBox box = new IntegerBox();
+
+        for (int i = 0; i < 10; i++) {
+              box.add(i);
+        }
+        for (Integer value : box) {
+            System.out.println(value);
+        }
+    }
+}