package com.iluwatar; import java.util.ArrayList; import java.util.List; /** * * Party implementation. * */ public class PartyImpl implements Party { private List members; public PartyImpl() { members = new ArrayList<>(); } @Override public void act(PartyMember actor, Action action) { for (PartyMember member : members) { if (member != actor) { member.partyAction(action); } } } @Override public void addMember(PartyMember member) { members.add(member); member.joinedParty(this); } }