Does HashTable maintains the insertion order?

Question

The following code gives me the output in the same order of insertion. I read the javadoc and they did not even talk about the insertion order. Can someone help me to get th

Answer 1

From Map Javadoc.

The order of a map is defined as the order in which the iterators on the map's collection views return their elements. Some map implementations, like the TreeMap class, make specific guarantees as to their order; others, like the HashMap class, do not.

Also it's very useful to look inside the code of Hashtable and HashMap.