#84 Added interface for view layer

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

@@ -4,10 +4,15 @@ import java.util.Arrays;
 
 public class App {
 
+	private static CakeBakingService cakeBakingService = new CakeBakingServiceImpl();
+	
 	public static void main(String[] args) {
-		CakeBakingService cakeBakingService = new CakeBakingServiceImpl();
+		
+		// initialize example data
 		initializeData(cakeBakingService);
-		CakeView cakeView = new CakeView(cakeBakingService);
+		
+		// create view and render it
+		CakeViewImpl cakeView = new CakeViewImpl(cakeBakingService);
 		cakeView.render();
 	}
 	

layers/src/main/java/com/iluwatar/layers/CakeViewImpl.java

@@ -1,10 +1,10 @@
 package com.iluwatar.layers;
 
-public class CakeView {
+public class CakeViewImpl implements View {
 
 	private CakeBakingService cakeBakingService;
 
-	public CakeView(CakeBakingService cakeBakingService) {
+	public CakeViewImpl(CakeBakingService cakeBakingService) {
 		this.cakeBakingService = cakeBakingService;
 	}
 	

layers/src/main/java/com/iluwatar/layers/View.java

@@ -0,0 +1,7 @@
+package com.iluwatar.layers;
+
+public interface View {
+
+	void render();
+	
+}