Cameron Murray Java Challenge Submission

Die.java

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+package bcr;
+import java.util.Random;
+
+public class Die {
+    private static int totalDiceCreated = 0; //starts total dice created at 0
+    private static int totalRolls = 0; //starts total rolls at 0
+    private static int[] globalNumCounts; // creates int for the # of times a # has been rolled
+
+    private int numSides; //int that gives number of sides of a die
+    private int lastRoll; //reads last roll
+
+    public Die() {
+        this(6); //default die, 6 sides
+    }
+
+    public Die(int numSides) {
+        if (numSides <= 1) {
+            throw new IllegalArgumentException("Number of sides must be greater than 1"); //makes sure dice have at least 2 sides
+        }
+        this.numSides = numSides;
+        totalDiceCreated++;
+    }
+
+    public int numSides() {
+        return numSides; //method that returns numSides
+    }
+
+    public int roll() { //method that rolls dice
+        Random random = new Random();
+        lastRoll = random.nextInt(numSides) + 1;
+        globalNumCounts[lastRoll]++;
+        totalRolls++;
+        return lastRoll;
+    }
+
+    public int readLastRoll() { //method that reads last roll
+        if (lastRoll == 0) {
+            return -1;
+        }
+        return lastRoll;
+    }
+
+    public static int totalCreated() {
+        return totalDiceCreated; //returns amount of dice created
+    }
+
+    public static int totalRolls() {
+        return totalRolls;
+    }
+
+    public static int numCount(int number) {
+        if (number < 1 || number > globalNumCounts.length - 1) {
+            throw new IllegalArgumentException("Invalid number"); //if '1' is entered, returns "invalid number" because who wants a 1-sided die
+        }
+        return globalNumCounts[number]; //returns times each num was rolled
+    }
+
+public static void main(String[] args) { //ADD EXTRA DICE HERE
+    Die sixSidedDie = new Die();
+    Die eightSidedDie = new Die(8);
+    Die twelveSidedDie = new Die(12);
+    Die sixteenSidedDie = new Die (16);
+
+    //if you want to add another die, follow this:
+    //int maxNumSides = Math.max(firstDie.numSides(), Math.max(secondDie.numSides(), Math.max(thirdDie.numSides(), Math.max(fourthDie.numSides(), fifthDie.numSides())))) **assuming there are 5 dice
+    //please go in ascending order going down, ex:
+    //Die twoSidedDie = new Die (2);
+    //Die threeSidedDie = new Die (3);
+    //etc.
+
+    int maxNumSides = Math.max(sixSidedDie.numSides(), Math.max(eightSidedDie.numSides(), Math.max(twelveSidedDie.numSides(), sixteenSidedDie.numSides())));
+    globalNumCounts = new int[maxNumSides + 1];
+
+    for (int i = 0; i < 70; i++) {
+        sixSidedDie.roll();
+        eightSidedDie.roll();
+        twelveSidedDie.roll();
+        sixteenSidedDie.roll();
+    }
+    //make sure to add fifth die above too (if adding 5th)
+
+    System.out.println("Total dice created: " + Die.totalCreated()); //prints total dice created
+    System.out.println("Total rolls: " + Die.totalRolls); //prints total rolls performed
+    System.out.println(""); //adds line of space (for easier visibility)
+
+    System.out.println("Last roll (6-sided die): " + sixSidedDie.readLastRoll()); //last roll (of the 70) for 6-sided
+    System.out.println("Last roll (8-sided die): " + eightSidedDie.readLastRoll()); //last roll (of the 70) for 8-sided
+    System.out.println("Last roll (12-sided die): " + twelveSidedDie.readLastRoll()); //last roll (of the 70) for 12-sided
+    System.out.println("Last roll (16-sided die): " + sixteenSidedDie.readLastRoll()); //last roll (of the 70) for 16-sided
+    System.out.println(""); //adds line of space (for easier visibility)
+
+    System.out.println("Number of times each number was rolled:"); //prints this statement
+    System.out.println(""); //adds line of space (for easier visibility)
+    for (int i = 1; i < globalNumCounts.length; i++) {
+        System.out.println("Number of " + i + "s rolled: " + numCount(i)); //prints number of times each number (1-16 (16 being highest value of all dice) was rolled)
+    }
+  }
+}

README.md

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+Java Challenge submission for BCR

dieRoll.java

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+package bcr;
+import java.lang.Math;
+public class dieRoll{
+    public static void main(String[] args) {
+        //below sets a range for the random, which, on a standard 6-sided die, is 1-6
+        int min = 1;
+        int max = 6;
+        int range = max - min + 1;
+
+        //below gets random value 20 different times and prints out each value along with message and # of times
+        for (int i = 1; i <= 20; i++){
+            int roll = (int)(Math.random()*range+min);
+            System.out.println("Roll #" + i + " = " + roll);
+        }
+    }    
+}