Solved HashMap returning null

Hello, if you can please help me, thanks
In event is hashMap returning null, but in "setting" are values good :/

Code:java

/*
 
 
package supermob;
 
import java.util.HashMap;
import org.bukkit.Bukkit;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.EntityDamageEvent;
 
/**
*
* @author Tomas
*/
public class MoreHealth implements Listener {
    public HashMap<String, Double> list = new HashMap<String, Double>();
 
 
    @EventHandler
    public void onDamage(EntityDamageEvent e) {
        Bukkit.getServer().broadcastMessage("hit");
 
 
    String nameid = String.valueOf(e.getEntity().getEntityId());
    Bukkit.getServer().broadcastMessage(String.valueOf(list.get(nameid))); //unformantely, return null
    if(list.containsKey(nameid)) {
    if(list.get(nameid) > 20) {
    double health = list.get(nameid);
    Bukkit.getServer().broadcastMessage(String.valueOf(health));
    if((list.get(nameid) - e.getDamage()) > 20) {
        Bukkit.getServer().broadcastMessage("no damage");
    list.put(nameid, health - e.getDamage());
    e.setCancelled(true);
    } else {
        Bukkit.getServer().broadcastMessage("damage");
    if(list.containsKey(nameid)) {
    list.remove(nameid);
    }
    }
    }
    }
    }
 
    public void setHealt(int EntityID, double health) {
    String nameid = String.valueOf(EntityID);
    list.put(nameid, health);
    Bukkit.getServer().broadcastMessage(String.valueOf(list.get(nameid))); //return good value
 
    }
 
    public double getHealt(int EntityID) {
    String nameid = String.valueOf(EntityID);
    Bukkit.getServer().broadcastMessage(String.valueOf(list.get(nameid))); //return good value
    if(list.containsKey(nameid)) {
    return list.get(nameid);
    }
    return -1;
    }
 
}
 

 

Your not putting anything in it. You declared it as a new HashMap and they start empty when you do that. Your other two attempt to access it call list.put() first so of course they aren't going to error (though putting it in the map just to get it back is a bit redundant).

 

Okey, and noobish question, how can I put value into hashmap(in this code) ?

 

If no entry for the Key string exists it returns null and not 0 as you might expect, so just check if it is null before doing something with it.

 

Thanks