Probability

Probability.java

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+import java.util.*;
+public class Probability {
+    public static void main(String [] args){
+        int coin = 0;
+        int heads = 0;
+        int tails = 0;
+        for(int i = 0; i < 1000; i++){
+            coin = (int)(Math.random()*2)+1;
+            if(coin == 1){
+                heads ++;
+
+            }
+            else if(coin == 2){
+                tails ++;
+
+            }
+        }
+        System.out.println(Arrays.toString(spinner()));
+        System.out.println(Arrays.toString(dice()));
+        System.out.println(tails);
+        System.out.println(heads);
+
+    }
+    public static int [] dice(){
+        int diceA = 0;
+        int diceB = 0;
+        int sum = 0;
+        int [] arr = new int [4];
+        int counter = 0;
+        for(int i = 0; i < 100000; i++){
+            counter = 0;
+            for(int k = 0; k < 3; k++){
+                diceA = (int)(Math.random()*6)+1;
+                diceB = (int)(Math.random()*6)+1;
+                sum = diceA + diceB;
+                if (sum % 3 == 0) {
+                    counter ++;
+                }
+            }
+            arr[counter]++;
+        }
+        return arr;
+    }
+    public static int [] spinner(){
+        int spin = 0;
+        int prize = 0;
+        int [] arr = new int [21];
+        for(int i = 0; i < 100000; i++){
+            spin = (int)(Math.random()*12)+1;
+            if(spin == 1 || spin ==2 || spin == 3 || spin ==4 ){
+                prize = 2;
+            }
+            else if(spin == 5 || spin == 6 || spin == 7 || spin ==8 || spin == 9 || spin == 10){
+                prize = 5;
+            }
+            else if(spin == 11){
+                prize = 15;
+            }
+            else{
+                prize = 20;
+            }
+            arr[prize]++;
+        }
+        return arr;
+    }
+}