public class Dvoclenik{
    public double stevec;
    public double imenovalec;

    public void Dvoclenik(){
        stevec = 0;
        imenovalec = 1;
    }

    public void Dvoclenik(Dvoclenik ulomek){
        this.stevec = ulomek.stevec;
        this.imenovalec = ulomek.imenovalec;
    }

    public void Dvoclenik(Double stevec, Double imenovalec){
        this.stevec = stevec;
        this.imenovalec = imenovalec;
    }

    public String toString(){
        return (this.stevec + "/" + this.imenovalec);
    }

    public Double toDouble(){
        return (this.stevec/this.imenovalec);
    }

    public void setStevec(int stevec){
        this.stevec = stevec;
    }

    public void setImenovalec(int stevec){
        this.imenovalec = stevec;
    }

    public void primnozi(Dvoclenik ulomek){
        this.stevec = ulomek.stevec*this.stevec;
        this.imenovalec = ulomek.imenovalec*this.imenovalec;
    }

    public Dvoclenik skupniImenovalec(Dvoclenik ulomek){
        this.stevec = this.stevec*ulomek.imenovalec;
        ulomek.stevec = ulomek.stevec*this.imenovalec;
        Double tmp = this.imenovalec;
        this.imenovalec = this.imenovalec*ulomek.imenovalec;
        ulomek.imenovalec = ulomek.imenovalec*tmp;
        return ulomek;
    }

    public void pristej(Dvoclenik ulomek){
        Dvoclenik toAdd = skupniImenovalec(ulomek);
        this.stevec = this.stevec + toAdd.stevec;
    }

    public void zdeli(Dvoclenik ulomek){
        this.stevec = ulomek.stevec*this.imenovalec;
        this.imenovalec = ulomek.imenovalec*this.stevec;
    }

    public void odstej(Dvoclenik ulomek){
        Dvoclenik toAdd = skupniImenovalec(ulomek);
        this.stevec = this.stevec - toAdd.stevec;
    }

    public void okrajsaj(){
        //System.out.println("ToDo");

        for (Double i = this.imenovalec; i>1; i--){

            if ((this.stevec%i==0)&&(this.imenovalec%i==0)){
                this.stevec = this.stevec/i;
                this.imenovalec = this.imenovalec/i;
            }
        }

    }
}