This week's book giveaway is in the Servlets forum.
We're giving away four copies of Murach's Java Servlets and JSP and have Joel Murach on-line!
See this thread for details.
The moose likes Beginning Java and the fly likes List creating Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of Murach's Java Servlets and JSP this week in the Servlets forum!
JavaRanch » Java Forums » Java » Beginning Java
Bookmark "List creating" Watch "List creating" New topic

List creating

Jukka Kuusamo

Joined: Jan 19, 2010
Posts: 11
Hello greenhorns

Well I'm really not getting this one, and I am sorry that I do not understand objects very well yet.

I want to create List or Map or what you'd recommend, that I will return
I should be able to store there enum and array

I have been trying to use List and Map and everything.

I tried to use EnumMap and put there array:

I seem to be getting always problem like this when I try to put or add objects to objects.

I hope you understand what I'm trying to do
Paul Clapham

Joined: Oct 14, 2005
Posts: 18541

Actually I don't understand what you are trying to do. You use an EnumMap when the keys of the map are going to be an Enum type. But then you write code which tries to use an int as a key. That isn't an Enum. So why did you do that?
Maneesh Godbole
Saloon Keeper

Joined: Jul 26, 2007
Posts: 10167

And Welcome to the Ranch!

[How to ask questions] [Donate a pint, save a life!] [Onff-turn it on!]
Rob Spoor

Joined: Oct 27, 2005
Posts: 19649

Can you show us:
- the declaration of the EnumMap
- the call to put
- the declaration of the objects you put in there

How To Ask Questions How To Answer Questions
Jukka Kuusamo

Joined: Jan 19, 2010
Posts: 11
It's weird but I got it all after I did read Paul Clapham's comment (yesterday nothing seemed to work).

Created map where I have array and enum, it seems to work very well.

I agree. Here's the link:
subject: List creating
Similar Threads
Pass By Value (again)
Display of hashmap values using jstl
casting objects with parameterized types
Removing brackets from arraylist printout.
Generic Array Creation Error Message