Completed MVC example code.

model-view-controller/src/main/java/com/iluwatar/App.java

@@ -3,6 +3,17 @@ package com.iluwatar;
 public class App {
 	
     public static void main( String[] args ) {
-        System.out.println( "Hello World!" );
+    	// create model, view and controller
+    	GiantModel giant = new GiantModel(Health.HEALTHY, Fatigue.ALERT, Nourishment.SATURATED);
+    	GiantView view = new GiantView();
+    	GiantController controller = new GiantController(giant, view);
+    	// initial display
+    	controller.updateView();
+    	// controller receives some interactions that affect the giant
+    	controller.setHealth(Health.WOUNDED);
+    	controller.setNourishment(Nourishment.HUNGRY);
+    	controller.setFatigue(Fatigue.TIRED);
+    	// redisplay
+    	controller.updateView();
     }
 }

model-view-controller/src/main/java/com/iluwatar/Fatigue.java

@@ -0,0 +1,17 @@
+package com.iluwatar;
+
+public enum Fatigue {
+
+	ALERT("alert"), TIRED("tired"), SLEEPING("sleeping");
+	
+	private String title;
+	
+	Fatigue(String title) {
+		this.title = title;
+	}
+
+	@Override
+	public String toString() {
+		return title;
+	}	
+}

model-view-controller/src/main/java/com/iluwatar/GiantController.java

@@ -0,0 +1,40 @@
+package com.iluwatar;
+
+public class GiantController {
+
+	private GiantModel giant;
+	private GiantView view;
+
+	public GiantController(GiantModel giant, GiantView view) {
+		this.giant = giant;
+		this.view = view;
+	}
+	
+	public Health getHealth() {
+		return giant.getHealth();
+	}
+
+	public void setHealth(Health health) {
+		this.giant.setHealth(health);
+	}
+
+	public Fatigue getFatigue() {
+		return giant.getFatigue();
+	}
+
+	public void setFatigue(Fatigue fatigue) {
+		this.giant.setFatigue(fatigue);
+	}
+
+	public Nourishment getNourishment() {
+		return giant.getNourishment();
+	}
+
+	public void setNourishment(Nourishment nourishment) {
+		this.giant.setNourishment(nourishment);
+	}
+	
+	public void updateView() {
+		this.view.displayGiant(giant);
+	}
+}

model-view-controller/src/main/java/com/iluwatar/GiantModel.java

@@ -0,0 +1,43 @@
+package com.iluwatar;
+
+public class GiantModel {
+	
+	private Health health;
+	private Fatigue fatigue;
+	private Nourishment nourishment;
+
+	GiantModel(Health health, Fatigue fatigue, Nourishment nourishment) {
+		this.health = health;
+		this.fatigue = fatigue;
+		this.nourishment = nourishment;	
+	}
+
+	public Health getHealth() {
+		return health;
+	}
+
+	public void setHealth(Health health) {
+		this.health = health;
+	}
+
+	public Fatigue getFatigue() {
+		return fatigue;
+	}
+
+	public void setFatigue(Fatigue fatigue) {
+		this.fatigue = fatigue;
+	}
+
+	public Nourishment getNourishment() {
+		return nourishment;
+	}
+
+	public void setNourishment(Nourishment nourishment) {
+		this.nourishment = nourishment;
+	}
+	
+	@Override
+	public String toString() {
+		return String.format("The giant looks %s, %s and %s.", health, fatigue, nourishment);
+	}
+}

model-view-controller/src/main/java/com/iluwatar/GiantView.java

@@ -0,0 +1,8 @@
+package com.iluwatar;
+
+public class GiantView {
+
+	public void displayGiant(GiantModel giant) {
+		System.out.println(giant);
+	}
+}

model-view-controller/src/main/java/com/iluwatar/Health.java

@@ -0,0 +1,17 @@
+package com.iluwatar;
+
+public enum Health {
+	
+	HEALTHY("healthy"), WOUNDED("wounded"), DEAD("dead");
+	
+	private String title;
+	
+	Health(String title) {
+		this.title = title;
+	}
+
+	@Override
+	public String toString() {
+		return title;
+	}
+}

model-view-controller/src/main/java/com/iluwatar/Nourishment.java

@@ -0,0 +1,17 @@
+package com.iluwatar;
+
+public enum Nourishment {
+
+	SATURATED("saturated"), HUNGRY("hungry"), STARVING("starving");
+	
+	private String title;
+	
+	Nourishment(String title) {
+		this.title = title;
+	}
+
+	@Override
+	public String toString() {
+		return title;
+	}	
+}