Get online players inventories and if one has a special item, kick all players

Basically what the title said. If anyone could place some code to help, it would be appreciated. Thanks

 

Code:java

 
boolean item = false;
for(Player p : Bukkit.getOnlinePlayers()){
if(item){
p.kickPlayer("Someone has bedrock!");
}else{
for(ItemStack i : p.getInventory()){
if(i.getType().equals(Material.BEDROCK)){
item = true;
}
}
}
}
 

someone can prob do something better. but whatev

 

Kick all players with the item in the inventory:

Code:java

 
Material item = Material.STICK
 
for (Player player : Bukkit.getOnlinePlayers()) {
    if (player.getInventory.contains(item) {
        player.kickPlayer("You're not allowed to have any " + item.getName() + "'s!");
    }
}
 

Kick all players if the item is found in someone's inventory:

Code:java

 
Material item = Material.STICK
boolean hasItem = false;
 
for (Player player : Bukkit.getOnlinePlayers()) {
    if (hasItem) {
        player.kickPlayer("Someone had " + item.getName() + "s!");
    }
 
    if (player.getInventory.contains(item) {
        hasItem = true;
        player.kickPlayer("You're not allowed to have any " + item.getName() + "s!");
    }
}
 

 

Code:

for(Player player : Bukkit.getOnlinePlayers())
{
  if(player.getInventory().contains(/*itemStackVariable*/)
  {
    String playerName = player.getName();
    for(Player pl : Bukkit.getOnlinePlayers())
    {
       pl.kickPlayer(playerName + " had a certain item, so all players were kicked from the server.");
    }
    break;
  }
}