public class Broker extends Person { protected double provision; protected int clientCount; public Broker(String name, int age, double money, double provision, int clientCount) { super(name, age, money); this.provision = provision; this.clientCount = clientCount; } public void tradeAbwickeln(Trader trader, String aktieName, double price, int amt) { trader.aktieKaufen(aktieName, price, amt); this.money += this.provision; } public void kundenAnzeigen() { System.out.println("Kunden: " + this.clientCount); } }