HashMap maladies...

been working with hashmaps for quite a long time now... but one thing escapes me...Consider the following snippet to display the contemts of a HashMap in a sequential manner.

 //temp2 is a hashmap
 Set set2=temp2.entrySet();
       Iterator iHash2=set2.iterator();
     
       while(iHash2.hasNext()){
           Map.Entry me2= (Map.Entry) iHash2.next();
           System.out.println(me2.getKey());
           }

well if u understand the code ...( i dont see any issues here)..read on
I printed the order in which the elements were entered in the HashMap and later printed the hashMap using the above algorithm... both are different.... Any idea why??