I think I am done..

src/Main.java

@@ -1,5 +1,112 @@
+import java.util.Scanner;
+
+import edu.greenriver.sdev333.MathSet;
+import edu.greenriver.sdev333.SeparateChainingHashTables;
+import edu.greenriver.sdev333.BSTset;
+
+
 public class Main {
     public static void main(String[] args) {
-        System.out.println("Hello world!");
+        //System.out.println("Hello world!");
+        //string created to put in set
+        String testString = "I L O V E K U M A"; //9
+
+        MathSet<String> testOne = new SeparateChainingHashTables<>();
+
+
+        //scanner to add string to BSTSet
+        Scanner input = new Scanner(testString);
+
+        //testing isEmpty (true/false)
+       // System.out.println(testOne.isEmpty());
+
+        //loop to add the strings as keys to my testOne
+        while(input.hasNext()){
+            String key = input.next();
+            testOne.add(key);
+        }
+
+        //Test for MathSet
+        MathSet<String> testTwo = new SeparateChainingHashTables<>();
+        testTwo.add("I");
+        testTwo.add("t");
+        testTwo.add("i");
+        testTwo.add("S");
+        testTwo.add("W");
+        testTwo.add("h");
+        testTwo.add("a");
+        testTwo.add("T");
+        testTwo.add(("i"));
+        testTwo.add(("t"));
+        testTwo.add(("i"));
+        testTwo.add(("s"));
+
+
+        //testing all methods in mathSet: return int
+        System.out.println(testOne.size());
+
+        //returns boolean
+        System.out.println(testOne.contains("B"));
+        System.out.println(testOne.contains("R"));
+        System.out.println(testOne.contains("o"));
+       //
+//        System.out.println(testOne.isEmpty());
+//        System.out.println();
+//
+        System.out.println("__________________________________");
+//
+//        System.out.println();
+//        // and again on testTwo
+        System.out.println(testTwo.size());
+        System.out.println(testTwo.contains("A"));
+        System.out.println(testTwo.contains("K"));
+        System.out.println(testTwo.contains("a"));
+        System.out.println(testTwo.contains("T"));
+        System.out.println(testTwo.contains("z"));
+
+        System.out.println("__________________________________");
+//
+//        System.out.println();
+//        // this is the testOne for union/intersection/different methods
+        MathSet<String> unionTester = testOne.union(testTwo);
+        System.out.println("union: testOne and testTwo");
+        for (String element: unionTester.keys()){
+            System.out.println(element);
+        }
+        System.out.println("__________________________________");
+        System.out.println("intersection:  testOne and testTwo");
+        MathSet<String> intersectionTester = testOne.intersection((testTwo));
+        for (String element: intersectionTester.keys()){
+            System.out.println(element);
+        }
+        System.out.println("__________________________________");
+
+        System.out.println("difference: testOne and testTwo");
+        MathSet<String> differenceTester = testOne.difference((testTwo));
+        for (String element: differenceTester.keys()){
+            System.out.println(element);
+        }
     }
-}
+}
+//IN CLASS
+//
+////
+////        //Create 2 sets
+////        MathSet<String> set1 = new BSTset<>();
+////        // add items to each of the sets (some same, some different)
+////        set1.add("Ken");
+////        set1.add("Tina");
+////
+//        MathSet<String> set2 = new BSTset<>();
+//
+//
+//        MathSet<String> result1 = set1.union(set2);
+//        //test
+//        for (String key : result1.keys()) {
+//            System.out.println(key);
+//        }
+
+        //set intersection
+        //set union
+        //set difference
+