Added STUFF comments since I do not like blank spaces.

src/spaceshipsim/SpaceShipSim.java

@@ -58,7 +58,7 @@ public class SpaceShipSim {
 		aboutItem.addActionListener(new ActionListener() {
 			@Override
 			public void actionPerformed(ActionEvent ae) {
-				
+				// Stuff happens.
 			}
 		});
 

src/spaceshipsim/Window.java

@@ -11,5 +11,5 @@ import java.awt.*;
  * 
  */
 public class Window {
-	public 
+	// Stuff here.
 }