added abstract-factory sample

abstract-factory/src/main/java/com/iluwatar/App.java

@@ -0,0 +1,20 @@
+package com.iluwatar;
+
+public class App 
+{
+    public static void main( String[] args )
+    {
+    	createKingdom(new ElfKingdomFactory());
+    	createKingdom(new OrcKingdomFactory());
+    }
+    
+    public static void createKingdom(KingdomFactory factory) {
+    	King king = factory.createKing();
+    	Castle castle = factory.createCastle();
+    	Army army = factory.createArmy();
+    	System.out.println("The kingdom was created.");
+    	System.out.println(king);
+    	System.out.println(castle);
+    	System.out.println(army);
+    }
+}

abstract-factory/src/main/java/com/iluwatar/Army.java

@@ -0,0 +1,5 @@
+package com.iluwatar;
+
+public interface Army {
+
+}

abstract-factory/src/main/java/com/iluwatar/Castle.java

@@ -0,0 +1,5 @@
+package com.iluwatar;
+
+public interface Castle {
+
+}

abstract-factory/src/main/java/com/iluwatar/ElfArmy.java

@@ -0,0 +1,10 @@
+package com.iluwatar;
+
+public class ElfArmy implements Army {
+
+	@Override
+	public String toString() {
+		return "This is the Elven Army!";
+	}
+	
+}

abstract-factory/src/main/java/com/iluwatar/ElfCastle.java

@@ -0,0 +1,10 @@
+package com.iluwatar;
+
+public class ElfCastle implements Castle {
+
+	@Override
+	public String toString() {
+		return "This is the Elven castle!";
+	}
+	
+}

abstract-factory/src/main/java/com/iluwatar/ElfKing.java

@@ -0,0 +1,10 @@
+package com.iluwatar;
+
+public class ElfKing implements King {
+
+	@Override
+	public String toString() {
+		return "This is the Elven king!";
+	}
+	
+}

abstract-factory/src/main/java/com/iluwatar/ElfKingdomFactory.java

@@ -0,0 +1,17 @@
+package com.iluwatar;
+
+public class ElfKingdomFactory implements KingdomFactory {
+
+	public Castle createCastle() {
+		return new ElfCastle();
+	}
+
+	public King createKing() {
+		return new ElfKing();
+	}
+
+	public Army createArmy() {
+		return new ElfArmy();
+	}
+
+}

abstract-factory/src/main/java/com/iluwatar/King.java

@@ -0,0 +1,5 @@
+package com.iluwatar;
+
+public interface King {
+
+}

abstract-factory/src/main/java/com/iluwatar/KingdomFactory.java

@@ -0,0 +1,9 @@
+package com.iluwatar;
+
+public interface KingdomFactory {
+
+	Castle createCastle();
+	King createKing();
+	Army createArmy();
+	
+}

abstract-factory/src/main/java/com/iluwatar/OrcArmy.java

@@ -0,0 +1,10 @@
+package com.iluwatar;
+
+public class OrcArmy implements Army {
+
+	@Override
+	public String toString() {
+		return "This is the Orcish Army!";
+	}
+	
+}

abstract-factory/src/main/java/com/iluwatar/OrcCastle.java

@@ -0,0 +1,10 @@
+package com.iluwatar;
+
+public class OrcCastle implements Castle {
+
+	@Override
+	public String toString() {
+		return "This is the Orcish castle!";
+	}
+	
+}

abstract-factory/src/main/java/com/iluwatar/OrcKing.java

@@ -0,0 +1,10 @@
+package com.iluwatar;
+
+public class OrcKing implements King {
+
+	@Override
+	public String toString() {
+		return "This is the Orc king!";
+	}
+	
+}

abstract-factory/src/main/java/com/iluwatar/OrcKingdomFactory.java

@@ -0,0 +1,17 @@
+package com.iluwatar;
+
+public class OrcKingdomFactory implements KingdomFactory {
+
+	public Castle createCastle() {
+		return new OrcCastle();
+	}
+
+	public King createKing() {
+		return new OrcKing();
+	}
+
+	public Army createArmy() {
+		return new OrcArmy();
+	}
+
+}