Can we access the elements in a Hashtable in java using an index instead of a key?

Asked Oct 04 '18 at 00:20

Active Oct 04 '18 at 00:22

Viewed 20 times

I have a hashtable declared as :

Hashtable<Integer, ArrayList<String>> writeData = new Hashtable<>();

I want to access the contents of writeData so as to print them one by one. I don't know what the keys are. So printing them using the keys is not a good idea. Is there a better way to implement Hashtables?

edited Oct 04 '18 at 00:22

shmosel

49,289
6
73
138

asked Oct 04 '18 at 00:20

Akshata Dabade

1

why do yo want to use hashtable now..you can go with hashmap – Nawnit Sen Oct 04 '18 at 00:23
I am not getting the right way to implement Hashmap here. Can we get a value in hashmap using an index? – Akshata Dabade Oct 04 '18 at 00:43
1

no but you can get the set of keys and print the corresponding data.or you can iterate using EntrySet in hasmao and get both key and value – Nawnit Sen Oct 04 '18 at 00:46
I think this can work ---- > for (Map.Entry me : writeData.entrySet()) { System.out.println("Key: "+me.getKey() + " & Value: " + me.getValue()); } – Akshata Dabade Oct 04 '18 at 00:49

Can we access the elements in a Hashtable in java using an index instead of a key?

0 Answers0