weapon.java

import java.util.ArrayList;
import java.util.List;
import java.util.Objects;

public class Main
{
 public static void main(String[] args)
 {
 Player player1 = new Player("helmut");
 Weapon sword = new Weapon("sword");
 Weapon axe = new Weapon("axe");

 System.out.println(player1.getPlayerName());

 player1.addWeaponList(sword);
 player1.addWeaponList(axe);
 player1.showWeaponList();

 System.out.println("item anzahl: "+player1.getItemAnzahl());

 }
}

public class Player
{
 String PlayerName;
 int ItemAnzahl = 0;
 private final List<Weapon> WeaponList = new ArrayList<Weapon>();

 Player (String PlayerName)
 {
 this.PlayerName = Objects.requireNonNull(PlayerName, "PlayerName cannot be null");
 }

 public String getPlayerName()
 {
 return PlayerName;
 }

 public void addWeaponList(Weapon weapon)
 {
 WeaponList.add(weapon);
 ItemAnzahl++;
 }

 public void showWeaponList()
 {
 for (Weapon weapon : WeaponList)
 {
 System.out.println(weapon.getWeaponName());
 }
 }

 public int getItemAnzahl()
 {
 return ItemAnzahl;
 }
}

public class Weapon
{
 String WeaponName;

 Weapon(String WeaponName)
 {
 this.WeaponName = Objects.requireNonNull(WeaponName, "WeaponName cannot be null");
 }

 public String getWeaponName()
 {
 return WeaponName;
 }
}