Signs resetting after reload

So I am new to coding, I made a plugin where you get a Menu and you could do various things. Everything is working but when I reload and you right click on the signs they don't work anymore.

Code:

Code:java

package me.Matti.YTRater;
 
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
 
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.SignChangeEvent;
import org.bukkit.event.inventory.InventoryClickEvent;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.inventory.Inventory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.plugin.java.JavaPlugin;
 
public class Cinv extends JavaPlugin implements Listener {
 
public final HashMap<Location, String> signs = new HashMap<Location, String>();
public static Inventory testInventory;
 
public void onEnable() {
testInventory = Bukkit.createInventory(null, 9, "PremiumShop");
getServer().getPluginManager().registerEvents(this, this);
 
}
 
public ItemStack setMeta(ItemStack material, String name, List<String> lore) {
if (((material == null) || material.getType() == Material.AIR)
|| ((name == null) && lore == null))
return null;
ItemMeta im = material.getItemMeta();
if (name != null)
im.setDisplayName(name);
if (lore != null)
im.setLore(lore);
material.setItemMeta(im);
return material;
}
 
ItemStack newItem = setMeta(new ItemStack(Material.DIAMOND), ChatColor.RED
+ "Clear Inventory",
Arrays.asList("Are you sure!?", "Your armor wil also get deleted!"));
ItemStack Pot = setMeta(new ItemStack(Material.POISONOUS_POTATO),
ChatColor.RED + "Kill yourself!",
Arrays.asList("Goodbye Cruel world!"));
ItemStack Spawn = setMeta(new ItemStack(Material.BOOKSHELF), ChatColor.RED
+ "Teleport to spawn",
Arrays.asList("You dont need an explanation, do you?"));
 
public boolean onCommand(CommandSender sender, Command command,
String label, String[] args) {
if (label.equalsIgnoreCase("Menu")) {
if (sender instanceof Player) {
((Player) sender).openInventory(testInventory);
testInventory.clear();
testInventory.addItem(Pot);
testInventory.addItem(newItem);
testInventory.addItem(Spawn);
}
}
return false;
}
 
@EventHandler
public void onSignChange(SignChangeEvent event) {
if (event.getLine(0).equalsIgnoreCase(
ChatColor.DARK_PURPLE + "" + ChatColor.BOLD + "[Menu]")) {
signs.put(event.getBlock().getLocation(), event.getPlayer()
.getName());
 
}
 
}
 
@EventHandler
public void onPlayerInteract(PlayerInteractEvent event) {
Player player = event.getPlayer();
try {
if (signs.containsKey(event.getClickedBlock().getLocation())) {
player.openInventory(testInventory);
testInventory.clear();
testInventory.addItem(Pot);
testInventory.addItem(newItem);
testInventory.addItem(Spawn);
}
} catch (Exception exc) {
}
}
 
@SuppressWarnings("deprecation")
@EventHandler
public void onInventoryClick(InventoryClickEvent event) {
if (event.getInventory().getTitle() == "PremiumShop") {
if (event.getCurrentItem().getType() == Material.DIAMOND) {
event.setCancelled(true);
event.getWhoClicked().getInventory();
Player player = (Player) event.getWhoClicked();
player.getInventory().clear();
player.sendMessage(ChatColor.RED + "Inventory Cleared!");
}
 
}
if (event.getInventory().getTitle() == "PremiumShop") {
if (event.getCurrentItem().getType() == Material.BOOKSHELF) {
event.setCancelled(true);
event.getWhoClicked().getInventory();
Player player = (Player) event.getWhoClicked();
player.sendMessage(ChatColor.AQUA + "Teleported to spawn!");
player.teleport(player.getWorld().getSpawnLocation());
}
 
}
 
if (event.getInventory().getTitle() == "PremiumShop") {
if (event.getCurrentItem().getType() == Material.POISONOUS_POTATO) {
event.setCancelled(true);
Player player = (Player) event.getWhoClicked();
Bukkit.broadcastMessage(ChatColor.AQUA + player.getName()
+ ChatColor.RED + "" + ChatColor.BOLD
+ " committed suicide!");
player.setHealth(0);
}
 
}
}
 
}
 

 

mattibijnens
HashMaps reset over reloads and restarts. You'll probably want to save it somewhere, such as an yml file.

 

Oh ok, I will check that out

I cant figure out how to do that :S Does someone know a Tutorial for that?

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

First onEnable , create custom .yml file where you will save your data, and load a saved data...
Then , onDisable , do a hashmap save.

 

dup9let I am new to bukkit so I dont know how to do that :S

 

google

http://wiki.bukkit.org/Configuration_API_Reference

 

So I read the http://wiki.bukkit.org/Configuration_API_Reference thoroughly but I still don't understand how to do it :S