rename to distinguish btw number and word sorters

Sorting/NumberBubbleSorter.java

@@ -0,0 +1,24 @@
+package Sorting;
+
+public class NumberBubbleSorter extends NumberSorter{
+    //a class to sort arrays of numbers using bubble sort
+
+    public NumberBubbleSorter(RandomNumberFileReader reader){
+        super("bubble sort", reader);
+    }
+
+    void sort(){
+       
+        boolean usedSwap;
+        do{
+            usedSwap=false;
+            for(int i=0;i<numbers.length-1;i++){
+                if(compare(numbers[i],numbers[i+1])>0){
+                    swap(i,i+1);
+                    usedSwap=true;
+                }
+            }
+        }while(usedSwap);
+    }
+
+}