From b981bfc880e6f4e9ae5c516e0809968d8731e0c4 Mon Sep 17 00:00:00 2001
From: jtd00123 <john.demick@gmail.com>
Date: Sat, 20 Aug 2016 17:49:23 -0400
Subject: [PATCH] Update App.java

Added additional explanation on retainAll() and removeAll() methods.
---
 55 - Sets/src/App.java | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/55 - Sets/src/App.java b/55 - Sets/src/App.java
index 6480617..abddb29 100644
--- a/55 - Sets/src/App.java	
+++ b/55 - Sets/src/App.java	
@@ -61,18 +61,18 @@ public static void main(String[] args) {
          
         ////////////// Intersection ///////////////////
          
-        Set<String> intersection = new HashSet<String>(set1);
+        Set<String> intersection = new HashSet<String>(set1);  
          
-        intersection.retainAll(set2);
+        intersection.retainAll(set2);  // keeps similarities between set 1 and set 2
          
         System.out.println(intersection);
          
         ////////////// Difference /////////////////////////
          
-        Set<String> difference = new HashSet<String>(set2);
+        Set<String> difference = new HashSet<String>(set2);  
          
-        difference.removeAll(set1);
+        difference.removeAll(set1);   // removes differences between set1 and set2, prints what is left of set2
         System.out.println(difference);
     }
  
-}
\ No newline at end of file
+}