Made some overall changes.

model-view-presenter/src/main/java/com/iluwatar/FileSelectorView.java

@@ -1,3 +1,5 @@
+package com.iluwatar;
+
 /**
  * This interface represents the View component in the 
  * Model-View-Presenter pattern. It can be implemented 
@@ -57,4 +59,4 @@ public interface FileSelectorView {
 	 * @param data The data to be written.
 	 */
 	public void displayData(String data);
-}
+}