Probability of drawing entire deck with Grishoalbrand

package griselbrand;

import java.util.Random;

public class Griselbrand {

    public static void main(String[] args) {

        Deck deck=new Deck();
        int NrSims=10000000;
        //CardType1=Nourishing Shoal
        //CardType2=Worldspine Wurm
        //CardType3=other
            double TotalDrawDeck=0;
            double TotalDrawTill21=0;
            int Outcome;
            for (int i=1; i<=NrSims; i++){
                deck.SetDeck(4,4,47,0,0,0);
                //Deck size is 55 because the first 5 cards were fixed to be Faithless Looting, Goryo's Vengeance, Griselbrand, Mountain, Swamp
                Outcome=Simulate(deck);
                if (Outcome==1){TotalDrawTill21++;}
                if (Outcome==2){TotalDrawTill21++; TotalDrawDeck++;}
            }

            System.out.println("P[able to draw till 21]="+TotalDrawTill21/NrSims);
            System.out.println("P[able to draw entire deck]="+TotalDrawDeck/NrSims);

    }//end of main



     static int Simulate(Deck remainingdeck) {
        int Outcome=42; //What other number could we use to initialize
        int TypeOfCardDrawn;

        boolean DrawPair=false;
        int NrShoalsFound=0;
        int NrWurmsFound=0;
        //Griselbrand activation 1 and 2, plus 6 additional non-combo cards from opening hand, draw steps, and Lootings. This means we have 20 cards to find the first life-gain pair.
        for (int i=1; i<=20; i++){
            TypeOfCardDrawn=remainingdeck.DrawCard();
            if (TypeOfCardDrawn==1) {NrShoalsFound++;}
            if (TypeOfCardDrawn==2) {NrWurmsFound++;}
        }

        if (NrShoalsFound==0 || NrWurmsFound==0) {Outcome=0;}

        if (NrShoalsFound>0 && NrWurmsFound>0) {
        //Griselbrand activation 3 and 4.
            for (int i=1; i<=14; i++){
                TypeOfCardDrawn=remainingdeck.DrawCard();
                if (TypeOfCardDrawn==1) {NrShoalsFound++;}
                if (TypeOfCardDrawn==2) {NrWurmsFound++;}
            }

            if (NrShoalsFound<=1 || NrWurmsFound<=1) {Outcome=1;}

            if (NrShoalsFound>1 && NrWurmsFound>1) {
                //Griselbrand activation 5.
                for (int i=1; i<=7; i++){
                    TypeOfCardDrawn=remainingdeck.DrawCard();
                    if (TypeOfCardDrawn==1) {NrShoalsFound++;}
                    if (TypeOfCardDrawn==2) {NrWurmsFound++;}
                }

                if (NrShoalsFound<=2 || NrWurmsFound<=2) {Outcome=1;}

                if (NrShoalsFound>2 && NrWurmsFound>2) {Outcome=2;}
            }
        }
        return Outcome;
    }


static class Deck {
    int NrCardType1;
    int NrCardType2;
    int NrCardType3;
    int NrCardType4;
    int NrCardType5;
    int NrCardType6;

    void PrintDeckBrief () {
        if(NrCardType1<10) {System.out.print("0");}
        System.out.print(NrCardType1+" ");
        if(NrCardType2<10) {System.out.print("0");}
        System.out.print(NrCardType2+" ");
        if(NrCardType3<10) {System.out.print("0");}
        System.out.print(NrCardType3+" ");
        if(NrCardType4<10) {System.out.print("0");}
        System.out.print(NrCardType4+" ");
        if(NrCardType5<10) {System.out.print("0");}
        System.out.print(NrCardType5+" ");
        if(NrCardType6<10) {System.out.print("0");}
        System.out.print(NrCardType6);
        System.out.print(" ");
    }

    void SetDeck (int Nr1, int Nr2, int Nr3, int Nr4, int Nr5, int Nr6) {
        NrCardType1=Nr1;
        NrCardType2=Nr2;
        NrCardType3=Nr3;
        NrCardType4=Nr4;
        NrCardType5=Nr5;
        NrCardType6=Nr6;
    }

    int NrOfCards(){
        return NrCardType1+NrCardType2+NrCardType3+NrCardType4+NrCardType5+NrCardType6;
    }

    int DrawCard (){
            Random generator = new Random();
            int RandomIntegerBetweenOneAndDeckSize=generator.nextInt( this.NrOfCards() )+1;
            int CardType=0;
            int OneCutoff=NrCardType1;
            int TwoCutoff=OneCutoff+NrCardType2;
            int ThreeCutoff=TwoCutoff+NrCardType3;
            int FourCutoff=ThreeCutoff+NrCardType4;
            int FiveCutoff=FourCutoff+NrCardType5;
            int SixCutoff=FiveCutoff+NrCardType6;

            if (RandomIntegerBetweenOneAndDeckSize<=OneCutoff) {CardType=1; this.NrCardType1--;}
            if (RandomIntegerBetweenOneAndDeckSize>OneCutoff && RandomIntegerBetweenOneAndDeckSize<=TwoCutoff) {CardType=2; this.NrCardType2--;}
            if (RandomIntegerBetweenOneAndDeckSize>TwoCutoff && RandomIntegerBetweenOneAndDeckSize<=ThreeCutoff) {CardType=3; this.NrCardType3--;}
            if (RandomIntegerBetweenOneAndDeckSize>ThreeCutoff && RandomIntegerBetweenOneAndDeckSize<=FourCutoff) {CardType=4; this.NrCardType4--;}
            if (RandomIntegerBetweenOneAndDeckSize>FourCutoff && RandomIntegerBetweenOneAndDeckSize<=FiveCutoff) {CardType=5; this.NrCardType5--;}
            if (RandomIntegerBetweenOneAndDeckSize>FiveCutoff) {CardType=6; this.NrCardType6--;}
            return CardType;
    }

}
}