Simple random help

Hey everyone, hope you're having a nice day.
So, i have got somewhat a problem.

I coded something which adds certain items to an inventory.
I made a random to add random items, but one thing.

It is supposed to have different items in each of the different chests, and just more than one item.

But when I run the command, it simply only adds one item to the chests and it is the same item in all the chests.

Code so far:

Code:java

Random random = new Random();
List<Material> randomItems = Arrays.asList(Material.AIR, Material.IRON_CHESTPLATE, Material.APPLE, Material.ARROW, Material.IRON_SWORD);
Material randomItem = randomItems.get(random.nextInt(randomItems.size()));
        inv1.addItem(new ItemStack(randomItem));
        inv2.addItem(new ItemStack(randomItem));
        inv3.addItem(new ItemStack(randomItem));
        inv4.addItem(new ItemStack(randomItem));

Again, what I want it to do is add more than 1 random items (different in each chest) to each of the inventory.

 

CactusComboPvP

Get a random index each time when you add an item.

 

Gater12
Can you explain in more detail please?

 

CactusComboPvP

Get an element at a random index every time you add an item.

 

Gater12
I know this sounds like I'm trying to be spoon fed, but could you please give me some example?

 

CactusComboPvP

Code:

inv1.addItem(list.get(a new random int));
inv2.addItem(list.get(another new random int));
//And so on

 

Gater12
inv1.addItem(new ItemStack(randomItems.get(5)));
inv2.addItem(new ItemStack(randomItems.get(2)));

I done that but now nothing is in the chests

 

CactusComboPvP
I mean every time you add an item you get a new random number.

Code:java

inv1.addItem(randomGen.nextInt(list.size()));