Player Switches to and From Sword

Hello Everyone!

Currently coding a Hub plugin for my server, and I'm trying to figure out how I would check if the player switches FROM a Sword TO another hotbar slot.
I am trying to make it say "PVP Disabled" and remove all their armor.

At this moment,
this is all I have:

[

Code:

    @EventHandler
    public void onPlayerSwitchItems(PlayerItemHeldEvent e) {
        if (e.getNewSlot() == 8 && (e.getPlayer().getGameMode().equals(GameMode.SURVIVAL))) {
            Player p = e.getPlayer();
            ItemStack helmet = new ItemStack(Material.DIAMOND_HELMET, 1);
            ItemStack chestplate = new ItemStack(Material.DIAMOND_CHESTPLATE, 1);
            ItemStack leggings = new ItemStack(Material.DIAMOND_LEGGINGS, 1);
            ItemStack boots = new ItemStack(Material.DIAMOND_BOOTS, 1);
            List<String> helmetLore = new ArrayList<>();
            ItemMeta helmetMeta = helmet.getItemMeta();
            helmetMeta.setDisplayName(ChatColor.RED + "PVPers Helmet!");
            helmetLore.add(ChatColor.DARK_PURPLE + "This helps protect your head when in those PVP battles!");
            helmetMeta.setLore(helmetLore);
            helmet.setItemMeta(helmetMeta);
            List<String> chestplateLore = new ArrayList<>();
            ItemMeta chestplateMeta = chestplate.getItemMeta();
            chestplateMeta.setDisplayName(ChatColor.RED + "PVPers Chestplate!");
            chestplateLore.add(ChatColor.DARK_PURPLE + "This helps protect your chest when in those PVP battles!");
            chestplateMeta.setLore(chestplateLore);
            chestplate.setItemMeta(chestplateMeta);
            List<String> leggingsLore = new ArrayList<>();
            ItemMeta leggingsMeta = leggings.getItemMeta();
            leggingsMeta.setDisplayName(ChatColor.RED + "PVPers Leggings!");
            leggingsLore.add(ChatColor.DARK_PURPLE + "This helps protect your legs when in those PVP battles!");
            leggingsMeta.setLore(leggingsLore);
            leggings.setItemMeta(leggingsMeta);
            List<String> bootsLore = new ArrayList<>();
            ItemMeta bootsMeta = boots.getItemMeta();
            bootsMeta.setDisplayName(ChatColor.RED + "PVPers Boots!");
            bootsLore.add(ChatColor.DARK_PURPLE + "This helps protect your feet when in those PVP battles!");
            bootsMeta.setLore(bootsLore);
            boots.setItemMeta(bootsMeta);
            p.getInventory().setHelmet(helmet);
            p.getInventory().setChestplate(chestplate);
            p.getInventory().setLeggings(leggings);
            p.getInventory().setBoots(boots);
            p.sendMessage(ChatColor.GREEN + "PVP Enabled!");
        }
    }

but that's only for enabling pvp (Switching TO the Sword).

How would I go about detecting when the player switches from the sword?

Thanks in advance.
EDIT:// Forgot there was a e.getPreviousSlot().

Fixed it.

Code:

if (e.getPreviousSlot() == 8 && (e.getPlayer().getGameMode().equals(GameMode.SURVIVAL))) {
Player p = e.getPlayer();ItemStack air = new ItemStack(Material.AIR);
p.getInventory().setHelmet(air);
p.getInventory().setChestplate(air);
p.getInventory().setLeggings(air);
p.getInventory().setBoots(air);
p.sendMessage(ChatColor.DARK_RED + "PVP Disabled!");

 

Please mark this thread as solved.