public static IntArrayBag intersection(IntArrayBag b1, IntArrayBag b2)
   {
	   System.out.println("in the intersection");
	   
       IntArrayBag temp = new IntArrayBag(b1.manyItems + b2.manyItems);
       for(int i = 0; i < b1.manyItems; i++)
       {
    	   System.out.println("in for-loop");
           if(b2.countOccurrences(b1.data[i]) == 1)
           {
        	   System.out.println("count occurr " + b2.countOccurrences(b1.data[i]));
        	   System.out.println("b1.data["+ i + "]" + b1.data[i]);
               System.out.println("Test 2");
               temp.add(b1.data[i]);
           }
       }
       return temp;
   }