Added new design pattern.

Implementation for the Model-View-Presenter pattern is now available.

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

@@ -0,0 +1,60 @@
+/**
+ * This interface represents the View component in the 
+ * Model-View-Presenter pattern. It can be implemented 
+ * by either the GUI components, or by the Stub.
+ */
+public interface FileSelectorView {
+	
+	/**
+	 * Opens the view.
+	 */
+	public void open();
+	
+	/**
+	 * Closes the view.
+	 */
+	public void close();
+	
+	/**
+	 * @return True, if the view is opened, false otherwise.
+	 */
+	public boolean isOpened();
+	
+	/**
+	 * Sets the presenter component, to the one given as parameter.
+	 * 
+	 * @param presenter The new presenter component.
+	 */
+	public void setPresenter(FileSelectorPresenter presenter);
+	
+	/**
+	 * @return The presenter Component.
+	 */
+	public FileSelectorPresenter getPresenter();
+	
+	/**
+	 * Sets the file's name, to the value given as parameter.
+	 * 
+	 * @param name The new name of the file.
+	 */
+	public void setFileName(String name);
+	
+	/**
+	 * @return The name of the file.
+	 */
+	public String getFileName();
+	
+	/**
+	 * Displays a message to the users.
+	 * 
+	 * @param message The message to be displayed.
+	 */
+	public void showMessage(String message);
+	
+	/**
+	 * Displays the data to the view.
+	 * 
+	 * @param data The data to be written.
+	 */
+	public void displayData(String data);
+}