class Person {
    private int lön;
    private int bonus;
    public Person(int lön, int bonus) {
        this.lön = lön;
        this.bonus = bonus;
    }
    public int lönesumma() {
        return lön + bonus;
    }
    public void setLön(int nyLön) {
        lön = nyLön;
    }
    public int getLön() {
        return lön;
    }
} // class Person

public class Referenstyper {
    public static void main(String[] args) {
        int x;
        int y;
        Person z;
        Person t;

        x = 17;
        y = x;
        z = new Person(75, 100);
        t = z;

        System.out.println("Ändrar x till 42...");
        x = 42;
        System.out.println("Nu har y värdet " + y + ".");

        System.out.println("Ändrar z:s lön till 42...");
        z.setLön(42);
        System.out.println("Nu har t lönen " + t.getLön() + ".");
    } // main
} // class Referenstyper