public void fillChest() {
		Material[] items1 = new Material[] { Material.GOLDEN_APPLE, Material.IRON_SWORD, Material.IRON_CHESTPLATE, Material.IRON_SWORD };
		Material[] items2 = new Material[] { Material.APPLE, Material.WOOD_SWORD, Material.LEATHER_CHESTPLATE, Material.BOW, Material.ARROW };

		Random r = new Random();

		int numItems = r.nextInt(5) + 1; // A random number between 1 and 5.

		for (int i = 0; i < numItems; i++) {
			Material material = null;

			if (tier == 1) {
				material = items1[r.nextInt(items1.length)]; // A random Materials from the items1 array.
			}

			else if (tier == 2) {
				material = items2[r.nextInt(items2.length)]; // A random Materials from the items2 array.
			}

			ItemStack item = new ItemStack(material, 1);

			int index;

			do {
				index = r.nextInt(chest.getInventory().getSize());
			} while (chest.getInventory().getItem(index) != null);

			chest.getInventory().setItem(index, item);
		}
	}