public class Bankkonto implements Comparable<Bankkonto> {
    private double saldo;

    public Bankkonto(double saldo) {
        this.saldo = saldo;
    }

    public double hentSaldo() {
        return saldo;
    }

    public int compareTo(Bankkonto other) {
        if (hentSaldo() > other.hentSaldo()) return 1;
        if (hentSaldo() < other.hentSaldo()) return -1;
        return 0;
        // Mister litt informasjon:
        // return (int)(hentSaldo() - other.hentSaldo());
    }

    public static void main(String[] args) {
        Bankkonto b1 = new Bankkonto(10.3);
        Bankkonto b2 = new Bankkonto(10.2);
        System.out.println(b1.compareTo(b2));
    }
}