Voce - Ostale klase

public class Voce implements Comparable<Voce>{
    private String ime;
    private double zapremina;

    public Voce(String ime, double zapremina) {
        this.ime = ime;
        this.zapremina = zapremina;
    }

    public String getIme() {
        return ime;
    }

    public double getZapremina() {
        return zapremina;
    }

    @Override
    public String toString() {
        return "Voce [ime=" + ime + ", zapremina=" + zapremina + "]";
    }

    @Override
    public int compareTo(Voce o) {
        return Double.compare(this.zapremina, o.getZapremina());
    }
}


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public class Jabuka extends Voce{
    private boolean crvljivo;
    public Jabuka(String ime, double zapremina, boolean crvljivo) {
        super(ime, zapremina);
        this.crvljivo = crvljivo;
    }

    public boolean isCrvljivo() {
        return crvljivo;
    }

}

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public class Ananas extends Voce{

    public Ananas(String ime, double zapremina) {
        super(ime, zapremina);
        // TODO Auto-generated constructor stub
    }

    @Override
    public double getZapremina() {
        return super.getZapremina() * 0.5;
    }
}


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public interface Kontejner {

    public double zapremina();

    public int komada();

}



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public interface Cediljka {
    public void cedi();
}