ItemStack arrays/lists

Hey guys, I need a bit of help with some code I'm working on.
Basically, I want to add someones armor and the item in there hand to a HashMap<Player, ItemStack[]>

Here is how I thought I would do it:
inv is the hashmap...

Code:

ItemStack[] newinv;               
newinv.add(player.getInventory().getArmorContents());               
newinv.add(player.getItemInHand());
inv.put(player, newinv);

How should I go about doing this?

 

Do NOT use player as a key in hashmap unless you really know what you are doing.

 

One, use player.getname. And itemstack is a configurationserializable, so just use a list and add to list

 

Alright, so player.getName?
and why?

 

http://forums.bukkit.org/threads/common-mistakes.100544/ At the bottom of the first post there.

 

Something about hashmap cannot release player object when they leave, so ram cannot release it, causing memory leaks like whole player inventory disappear

 

Ahh, scary stuff!

Anyways, I'm pretty sure I'm doing something stupid here, but how do I initialize the List?

Code:

List<ItemStack> newinv;
newinv.add(player.getInventory().getHelmet());
newinv.add(player.getInventory().getChestplate());
newinv.add(player.getInventory().getLeggings());
newinv.add(player.getInventory().getBoots());
newinv.add(player.getItemInHand());

EDIT: Lmao I'm dumb

Code:

List<ItemStack> newinv = new ArrayList<ItemStack>();

But now I can't add it to the HashMap cause its not a ItemStack[], its a List<ItemStack>,
How do I convert? Can I just cast newinv to ItemStack[]?

 

= new ArrayList<ItemStack>();
Be sure to use java.util.list not the other one

No. U cannot. Use a for loop like for int i = 0; i < list.size; i++
And add them each into the itemstack like itemstack = list.get i

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Thanks for the help
I got it working
Turns out you don't need a for loop...just a bit 'o' google

Code:

               
List<ItemStack> newinv = new ArrayList<ItemStack>();
newinv.add(player.getInventory().getHelmet());
newinv.add(player.getInventory().getChestplate());
newinv.add(player.getInventory().getLeggings());
newinv.add(player.getInventory().getBoots());
newinv.add(player.getItemInHand());
               
ItemStack[] newStack = newinv.toArray(new ItemStack[newinv.size()]);
inv.put(player.getName(), newStack);

That works perfectly