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  1.     package manabase;
  2.  
  3.     import java.util.Arrays.*;
  4.     import java.util.Random;
  5.  
  6.     public class ManaBase {
  7.  
  8.         public static void main(String[] args) {
  9.  
  10.             Deck deck=new Deck();
  11.             int NrIterations=1000000;
  12.             int NrGoodLandsNeeded=2;
  13.             int TurnAllowed=2;
  14.             int NrCards=99;
  15.             int NrLands=40;
  16.             int CardType;
  17.             int LandsInHand;
  18.             int GoodLandsInHand;
  19.             boolean Mulligan;
  20.  
  21.             for (int NrGoodLands=6; NrGoodLands<=24; NrGoodLands++){
  22.  
  23.                 double CountOK=0.0;
  24.                 double CountConditional=0.0;
  25.  
  26.                 for (int i=1; i<=NrIterations; i++){
  27.  
  28.                     //Draw opening 7
  29.                     deck.SetDeck(NrLands, NrGoodLands, NrCards);
  30.                     LandsInHand=0;
  31.                     GoodLandsInHand=0;
  32.                     for (int j=1; j<=7; j++){
  33.                         CardType=deck.DrawCard();
  34.                         if (CardType<3) {LandsInHand++;}
  35.                         if (CardType==1) {GoodLandsInHand++;}  
  36.                     }
  37.                     Mulligan=false;
  38.                     if (LandsInHand<2) {Mulligan=true;}
  39.                     if (LandsInHand>5) {Mulligan=true;}
  40.  
  41.                     //Mulligan to 6
  42.                     if (Mulligan){
  43.                         deck.SetDeck(NrLands, NrGoodLands, NrCards);
  44.                         LandsInHand=0;
  45.                         GoodLandsInHand=0;
  46.                         for (int j=1; j<=6; j++){
  47.                             CardType=deck.DrawCard();
  48.                             if (CardType<3) {LandsInHand++;}
  49.                             if (CardType==1) {GoodLandsInHand++;}  
  50.                         }
  51.                         Mulligan=false;
  52.                         if (LandsInHand<2) {Mulligan=true;}
  53.                         if (LandsInHand>4) {Mulligan=true;}
  54.                     }
  55.  
  56.                     //Mulligan to 5
  57.                     if (Mulligan){
  58.                         deck.SetDeck(NrLands, NrGoodLands, NrCards);
  59.                         LandsInHand=0;
  60.                         GoodLandsInHand=0;
  61.                         for (int j=1; j<=5; j++){
  62.                             CardType=deck.DrawCard();
  63.                             if (CardType<3) {LandsInHand++;}
  64.                             if (CardType==1) {GoodLandsInHand++;}  
  65.                         }
  66.                         Mulligan=false;
  67.                         if (LandsInHand<1) {Mulligan=true;}
  68.                         if (LandsInHand>4) {Mulligan=true;}
  69.                     }
  70.  
  71.                     //Mulligan to 4
  72.                     if (Mulligan){
  73.                         deck.SetDeck(NrLands, NrGoodLands, NrCards);
  74.                         LandsInHand=0;
  75.                         GoodLandsInHand=0;
  76.                         for (int j=1; j<=4; j++){
  77.                             CardType=deck.DrawCard();
  78.                             if (CardType<3) {LandsInHand++;}
  79.                             if (CardType==1) {GoodLandsInHand++;}  
  80.                         }
  81.                     }
  82.  
  83.                     //Draw cards for the number of turns available
  84.                     for (int turn=1; turn<=TurnAllowed-1; turn++){
  85.                         CardType=deck.DrawCard();
  86.                         if (CardType<3) {LandsInHand++;}
  87.                         if (CardType==1) {GoodLandsInHand++;}  
  88.                     }
  89.  
  90.                     if (GoodLandsInHand>=NrGoodLandsNeeded) {CountOK++;}
  91.                     if (LandsInHand>=NrGoodLandsNeeded) {CountConditional++;}
  92.  
  93.                 } // end of 1000000 iterations
  94.  
  95.                 System.out.println("With "+NrGoodLands+" good lands: Prob="+CountOK/CountConditional);
  96.             }
  97.         }
  98.  
  99.     }
  100.  
  101.     class Deck {
  102.         int NumberOfLands;
  103.         int NumberOfGoodLands;
  104.         int NumberOfCards;
  105.  
  106.         void SetDeck (int NrLands, int NrGoodLands, int NrCards) {
  107.             NumberOfLands=NrLands;
  108.             NumberOfGoodLands=NrGoodLands;
  109.             NumberOfCards=NrCards;
  110.         }
  111.  
  112.         int DrawCard (){
  113.                 Random generator = new Random();
  114.                 int RandomIntegerBetweenOneAndDeckSize=generator.nextInt( this.NumberOfCards)+1;
  115.                 int CardType=0;
  116.                 int GoodLandCutoff=NumberOfGoodLands;
  117.                 int LandCutoff=NumberOfLands;
  118.  
  119.                 if (RandomIntegerBetweenOneAndDeckSize<=GoodLandCutoff) {CardType=1; this.NumberOfGoodLands--; this.NumberOfLands--; this.NumberOfCards--;}
  120.                 if (RandomIntegerBetweenOneAndDeckSize>GoodLandCutoff && RandomIntegerBetweenOneAndDeckSize<=LandCutoff) {CardType=2; this.NumberOfLands--; this.NumberOfCards--;}
  121.                 if (RandomIntegerBetweenOneAndDeckSize>LandCutoff) {CardType=3; this.NumberOfCards--;}
  122.                 return CardType;
  123.         }
  124.     }
  125.  
  126. // your code goes here
Compilation error #stdin compilation error #stdout 0s 0KB
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Standard input is empty
compilation info 
Main.java:6: error: class ManaBase is public, should be declared in a file named ManaBase.java
    public class ManaBase {
           ^
1 error
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Standard output is empty
https://ideone.com/1ghnhx
language:
Java (12.0.1)
created:
9 years ago
visibility:
public

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