diff --git a/examples/DisDemo/src/DisDemo/DisDemonstration.java b/examples/DisDemo/src/DisDemo/DisDemonstration.java
index b8bd02903e3c9c08d9a4fda2d2c7393b5214e90e..6d839c6a7ec01f4ac73f748794ef8962d053baef 100644
--- a/examples/DisDemo/src/DisDemo/DisDemonstration.java
+++ b/examples/DisDemo/src/DisDemo/DisDemonstration.java
@@ -117,7 +117,8 @@ public class DisDemonstration {
         }
         
     }
-    
+    /** Get list of network addresses for broadcast packets
+     * @return list of network addresses */
     public static List<InetAddress> getBroadcastAddresses()
     {
         List<InetAddress> broadcastAddresses = new ArrayList<>();
diff --git a/examples/DisDemo/src/DisDemo/EntityMover.java b/examples/DisDemo/src/DisDemo/EntityMover.java
index db9fa5a5275b9d351490b9c00ef48ddc81564d69..c4cec41584d5ac4b1fd26ddea69f60a799aa3da4 100644
--- a/examples/DisDemo/src/DisDemo/EntityMover.java
+++ b/examples/DisDemo/src/DisDemo/EntityMover.java
@@ -14,13 +14,17 @@ public abstract class EntityMover
 {
     Vector3Double position;
     
+    /** Superclass constructor
+     * @param startPosition initial coordinate point */
     public EntityMover(Vector3Double startPosition)
     {
         this.position = startPosition;
     }
-    
+    /** single-step movement */
     public abstract void step();
     
+    /** provide current location
+      * @return current location */
     public Vector3Double getPosition()
     {
         return position;
diff --git a/examples/DisDemo/src/DisDemo/EntityMoverSquare.java b/examples/DisDemo/src/DisDemo/EntityMoverSquare.java
index e57577368d2ee57a8b8c44c58f965376e1359454..d30dfb38a667997d31db008bb4d25629b5f9a048 100644
--- a/examples/DisDemo/src/DisDemo/EntityMoverSquare.java
+++ b/examples/DisDemo/src/DisDemo/EntityMoverSquare.java
@@ -15,10 +15,21 @@ public class EntityMoverSquare extends EntityMover
     /** How big the square we move around is */
     private static final int SQUARE_SIZE = 50;  // size of a side to the square, in meters
     /** Directions we can travel. */
-    public enum Direction{NORTH, EAST, SOUTH, WEST};
+    public enum Direction{
+        /** value choice */
+        NORTH, 
+        /** value choice */
+        EAST, 
+        /** value choice */
+        SOUTH, 
+        /** value choice */
+        WEST};
     
+    /** direction of movement */
     public Direction currentDirection;
     
+    /** instance constructor
+     * @param position initial coordinate */
     public EntityMoverSquare(Vector3Double position)
     {
         super(position);