Formatted all files to the same standard

visitor/src/main/java/com/iluwatar/Unit.java

@@ -1,7 +1,7 @@
 package com.iluwatar;
 
 /**
- *
+ * 
  * Interface for the nodes in hierarchy.
  * 
  */
@@ -9,12 +9,12 @@ public abstract class Unit {
 
 	private Unit[] children;
 
-	public Unit(Unit ... children) {
+	public Unit(Unit... children) {
 		this.children = children;
 	}
-	
+
 	public void accept(UnitVisitor visitor) {
-		for (Unit child: children) {
+		for (Unit child : children) {
 			child.accept(visitor);
 		}
 	}