package de.joethei.java1.zettel6; import java.util.ArrayList; public class Professor { private ArrayList vorlesungen = new ArrayList<>(); private String name; public Professor(String name) { this.name = name; } public String getName() { return name; } public void setName(String name) { this.name = name; } public boolean addVorlesung(Vorlesung2 vorlesung2) { return vorlesungen.add(vorlesung2); } public ArrayList getVorlesungen() { return vorlesungen; } public int gesamtSWS() { return vorlesungen.stream().mapToInt(Vorlesung2::getSws).sum(); } }