import org.bukkit.Material ;
import org.bukkit.entity.Player ;
import org.bukkit.event.inventory.InventoryClickEvent ;
import org.bukkit.inventory.ItemStack ;
import org.bukkit.inventory.meta.ItemMeta ;
import org.mplugins.mmenu.menu.Menu ;

import java.util.Collections ;

public class TestMenu extends Menu
{
    public TestMenu ( )
    {
        super ( "Title", 3 ) ; // Set title and amount of rows
    }

    @Override
    public void setContents ( )
    {
        ItemStack item = new ItemStack (Material. PAPER ) ;
        ItemMeta meta = item. getItemMeta ( ) ;
        meta. setDisplayName ( "§9§lDemo Item" ) ;
        meta. setLore ( Collections. singletonList ( "§fClick for demo action! :)" ) ) ;
        item. setItemMeta (meta ) ;

        // Place items in the GUI
        inventory. setItem ( 13, item ) ;
    }

    @Override
    public void handleClickAction (InventoryClickEvent inventoryClickEvent )
    {
        // This method gets called whenever a player clicks on an item inside the gui
        ItemStack item = inventoryClickEvent. getCurrentItem ( ) ;
        Player player = (Player ) inventoryClickEvent. getWhoClicked ( ) ;

        if (item. getType ( ) == Material. PAPER )
            player. sendMessage ( "§7[§cRESPONSE§7] §fGUI works!! Demo text." ) ;
    }
}