getting ids of nearby entitys ?

so what im looking to do is make it so it gets nearby entitys by there id then tern them into mob eggs with the corresponding id is this possible if so plz explain how

 

ahuby09

PHP:

    private static final Map<EntityType, Short> spawneggs = insertValues();
 
    private static Map<EntityType, Short> insertValues() {
        Map<EntityType, Short> result = new HashMap<EntityType, Short>();
        result.put(EntityType.CREEPER, (short) 1);
        //put your own values
        return Collections.unmodifiableMap(result);
    }
 
    public boolean onCommand(CommandSender s, Command c, String l, String[] a) {
        if (l.equalsIgnoreCase("se")) {
            if (s instanceof Player && a.length == 1) {
                Player p = (Player) s;
                int r = Integer.parseInt(a[0]);
                List<Entity> n = p.getNearbyEntities(r, r, r);
                for (Entity e : n) {
                    e.getWorld()
                            .dropItem(
                                    e.getLocation()
                                            .add(new Vector(0.5, 1, 0.5)),
                                    new ItemStack(Material.MONSTER_EGG, 1,
                                            spawneggs.get(e.getType())))
                            .setVelocity(new Vector(0, 0, 0));
                    e.remove();
                }
            }
        }
        return false;
    }
    }