added Property pattern

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

@@ -0,0 +1,49 @@
+package com.iluwatar;
+
+import com.iluwatar.Character.Type;
+
+/**
+ * Example of Character instantiation using Property pattern (as concept also known like Prototype inheritance).
+ * In prototype inheritance instead of classes, as opposite to Java class inheritance,
+ * objects are used to create another objects and object hierarchies.
+ * Hierarchies are created using prototype chain through delegation: every object has link to parent object.
+ * Any base (parent) object can be amended at runtime (by adding or removal of some property), and all child objects will be affected as result.
+ */
+public class App {
+
+	public static void main(String[] args) {
+		/* set up */
+		Prototype charProto = new Character();
+		charProto.set(Stats.STRENGTH, 10);
+		charProto.set(Stats.AGILITY, 10);
+		charProto.set(Stats.ARMOR, 10);
+		charProto.set(Stats.ATTACK_POWER, 10);
+
+		Character mageProto = new Character(Type.MAGE, charProto);
+		mageProto.set(Stats.INTELLECT, 15);
+		mageProto.set(Stats.SPIRIT, 10);
+
+		Character warProto = new Character(Type.WARRIOR, charProto);
+		warProto.set(Stats.RAGE, 15);
+		warProto.set(Stats.ARMOR, 15); // boost default armor for warrior
+
+		Character rogueProto = new Character(Type.ROGUE, charProto);
+		rogueProto.set(Stats.ENERGY, 15);
+		rogueProto.set(Stats.AGILITY, 15); // boost default agility for rogue
+
+		/* usage */
+		Character mag = new Character("Player_1", mageProto);
+		mag.set(Stats.ARMOR, 8);
+		System.out.println(mag);
+
+		Character warrior = new Character("Player_2", warProto);
+		System.out.println(warrior);
+
+		Character rogue = new Character("Player_3", rogueProto);
+		System.out.println(rogue);
+
+		Character rogueDouble = new Character("Player_4", rogue);
+		rogueDouble.set(Stats.ATTACK_POWER, 12);
+		System.out.println(rogueDouble);
+	}
+}