How to not allow players to go into negative money

I am making a plugin and I want playes to lose 50 bucks when then die, but I dont want them to lose it if they are have at less than 51 dollars, what do I do?

Code:

package me.pvp.listeners;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.PlayerDeathEvent;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.event.player.PlayerQuitEvent;
import me.pvp.main.Main;

public class PlayerListeners implements Listener{
   
    Main plugin;
    public PlayerListeners(Main instance) {
        this.plugin = instance;
    }
   
    //When player join the server
    @EventHandler
    public void PlayerJoin(PlayerJoinEvent e) {
        Player p = e.getPlayer();
        String pname = p.getName();
        p.getInventory().clear();
        //Message to send the seerver on join
        Bukkit.broadcastMessage("" + ChatColor.AQUA + ChatColor.BOLD + pname + ChatColor.RESET + ChatColor.GOLD + " has join the KIT PVP server");
   
    }
   
    //END OF PLAYER JOINING SERVER
   
    //When player leaves servah
    @EventHandler
    public void PlayerLeave(PlayerQuitEvent e) {
        Player p = e.getPlayer();
        String pname = p.getName();
        p.getInventory().clear();
        //Message to send the server on quit
        Bukkit.broadcastMessage("" + ChatColor.AQUA + ChatColor.BOLD + pname + ChatColor.RESET + ChatColor.GOLD + " has left the KIT PVP server");

    }
   
    //End OF PLAYER LEAVING DA SERVAH
    @EventHandler
    public void Death(PlayerDeathEvent e) {
   
        Player p = e.getEntity();
        Player k = p.getKiller();
        e.setDeathMessage("" + ChatColor.BLUE + p.getName() + ChatColor.AQUA + " was killed by " + ChatColor.RED + k.getName());
        p.sendMessage(ChatColor.AQUA + "You were killed by " + ChatColor.RED + k.getName() + ChatColor.BLUE + " you have lost 50 dollars");
        String cmd = "money " + "give " + k.getName() + " 100";
        String cmd1 = "money " + "take " + p.getName() + " 50";
        //Console commands don't have a "/"
        Bukkit.dispatchCommand(Bukkit.getConsoleSender(), cmd);
        if
        Bukkit.dispatchCommand(Bukkit.getConsoleSender(), cmd1);
        k.sendMessage(ChatColor.AQUA + "Congrats! You killed " + ChatColor.RED + p.getName() + ChatColor.BLUE + " you got 100 dollars");
      
    }}
    

 

Code:

if (player.checkmoneymethod() < 50){
return false;
}

 

@BladdonB
Why are you not doing a simple Balance check? Why have you not thought of this already?

[edit], if the /money plugin is not an API, don't use it for this.