added adapter sample

adapter/pom.xml

+<?xml version="1.0"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.iluwatar</groupId>
+    <artifactId>java-design-patterns</artifactId>
+    <version>1.0-SNAPSHOT</version>
+  </parent>
+  <groupId>com.iluwatar</groupId>
+  <artifactId>adapter</artifactId>
+  <version>1.0-SNAPSHOT</version>
+  <name>adapter</name>
+  <url>http://maven.apache.org</url>
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>3.8.1</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+</project>

adapter/src/main/java/com/iluwatar/App.java

+package com.iluwatar;
+
+public class App 
+{
+    public static void main( String[] args )
+    {
+    	GnomeEngineerAdapter engineer = new GnomeEngineerAdapter();
+    	engineer.flyGoblinGlider();
+    }
+}

adapter/src/main/java/com/iluwatar/GnomeEngineerAdapter.java

+package com.iluwatar;
+
+public class GnomeEngineerAdapter {
+
+	private GoblinGlider glider;
+	
+	public GnomeEngineerAdapter() {
+		glider = new GoblinGlider();
+	}
+	
+	public void flyGoblinGlider() {
+		glider.attachGlider();
+		glider.gainSpeed();
+		glider.takeOff();
+	}
+	
+}

adapter/src/main/java/com/iluwatar/GoblinGlider.java

+package com.iluwatar;
+
+public class GoblinGlider {
+
+	public void attachGlider() {
+		System.out.println("glider attached");
+	}
+	
+	public void gainSpeed() {
+		System.out.println("gaining speed");
+	}
+	
+	public void takeOff() {
+		System.out.println("lift-off!");
+	}
+	
+}

pom.xml

@@ -23,5 +23,6 @@
     <module>factory-method</module>
     <module>prototype</module>
     <module>singleton</module>
+    <module>adapter</module>
   </modules>
 </project>
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