bug fix

Sorting/QuickSorterThreeWay.java

@@ -4,21 +4,23 @@ package Sorting;
  * an implementation of quick sort with three-way partitioning
  */
 
-public class QuickSorterThreeWay extends QuickSorter{
+public class QuickSorterThreeWay extends Sorter{
 
     public QuickSorterThreeWay(String filename){
-        super("3-way partitioned quick", filename);
+        super("quick sort (3-way partition)", filename);
+    }
+
+    void sort(){
+        quickSort(0,numbers.length-1);
     }
 
-    //edit this to use three-way partition
-    @Override
     void quickSort(int lowIndex, int highIndex){
         if(compare(lowIndex,highIndex)<0){
             int pivot=numbers[highIndex];
             int lessThan = lowIndex;
             int greaterThan = highIndex;
             int i = greaterThan-1;
-            while(i>lessThan){
+            while(i>=lessThan){
                 int comp = compare(numbers[i], pivot);
                 if(comp>0){
                     swap(i, greaterThan);