completed the lab

pom.xml

@@ -7,6 +7,14 @@
     <groupId>com.zipcodewilmington</groupId>
     <artifactId>Dicey-Lab</artifactId>
     <version>1.0-SNAPSHOT</version>
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>RELEASE</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
 
 </project>

src/main/java/Bins.java

@@ -1,4 +1,55 @@
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
 
 public class Bins {
 
+
+    private int min, max;
+    private Map<Integer, Integer> bins;
+    private int noOfDies;
+
+    public Map<Integer, Integer> getBins() {
+        return bins;
+    }
+
+    public Bins(int noOfDies){
+        min= noOfDies;
+        max = noOfDies*6;
+        bins = new HashMap<Integer, Integer>();
+        this.noOfDies = noOfDies;
+
+
+        //bins = new int[((noOfDies*6)-noOfDies)+1];
+        createBins();
+    }
+
+    private void createBins(){
+        for(int i=min; i<=max;i++)
+        {
+            bins.put(i,0);
+        }
+    }
+
+    public void IncrementBin(int toss){
+
+       if(bins.containsKey(toss)){
+           int value = bins.get(toss);
+           bins.put(toss,value+1);
+       }
+
+    }
+
+    public int getBin(int toss){
+
+        if(bins.containsKey(toss)){
+            return bins.get(toss);
+        }
+        return 0;
+    }
+
+
+
+
 }

src/main/java/Dice.java

@@ -1,4 +1,26 @@
 public class Dice {
+    private int noOfDies;
+   // private Bins bin;
+
+    public Dice(int number){
+        this.noOfDies = number;
+       // bin = new Bins(noOfDies);
+    }
+
+
+
+
+
+    public int tossAndSum(){
+        int sum = 0;
+        for(int i=0;i<this.noOfDies;i++){
+            int toss = (int)(Math.random()*6 + 1);
+            ////bin.IncrementBin(toss);
+            sum += toss;
+        }
+        return sum;
+    }
+
 
 
 }

src/main/java/MainApplication.java

@@ -0,0 +1,16 @@
+public class MainApplication {
+
+    public static void main(String[] args) {
+
+        Dice dice = new Dice(2);
+        Bins bins = new Bins(2);
+
+        Simulation simulation = new Simulation(2,1000000, dice, bins);
+
+        simulation.runSimulation();
+
+        simulation.printBinValues();
+
+
+    }
+}

src/main/java/Simulation.java

@@ -1,5 +1,55 @@
+import java.util.Map;
+import java.util.Set;
+
 public class Simulation {
 
+private int diceNum;
+private int tossNum;
+private Dice dice;
+private Bins bin;
+
+    public Simulation(int diceNum, int tossNum, Dice dice, Bins bin) {
+        this.diceNum = diceNum;
+        this.tossNum = tossNum;
+        this.dice = dice;
+        this.bin = bin;
+
+    }
+
+
+    public void runSimulation(){
+        for(int i = 0; i < tossNum; i++){
+             bin.IncrementBin(dice.tossAndSum());
+        }
+    }
+
+
+    public void printBinValues(){
+        runSimulation();
+
+        StringBuilder sb = new StringBuilder();
+        sb.append("**\nSimulation of " + diceNum + " dice tossed for " + tossNum + " times.\n** \n\n\n");
+
+        Map<Integer,Integer> map = bin.getBins();
+        Set<Integer> keySet = map.keySet();
+
+
+
+        for(Integer key : keySet){
+            sb.append(String.format("%3d : " + "%8d : " + "%.2f", key, map.get(key), (double)map.get(key)/(double)tossNum * 100.0));
+            sb.append("\t");
+           // int starCount = (int) ((map.get(key)/tossNum) * 100);
+            for (int i = 0; i < (double)map.get(key)/(double)tossNum * 100.0; i++) {
+                sb.append("*");
+            }
+            sb.append("\n");
+        }
+
+        sb.append("\n");
+
+        System.out.println(sb.toString());
+
 
+    }
 
 }

src/test/java/BinsTest.java

@@ -0,0 +1,50 @@
+
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import static org.junit.Assert.*;
+
+public class BinsTest {
+
+
+    Bins bin = new Bins(2);
+    int noOfDies = 2;
+    Map<Integer,Integer> map = new HashMap<Integer, Integer>();
+
+    @Test
+    public void testIncrementBins(){
+        int toss =2;
+        int expected = 1;
+
+        bin.IncrementBin(2);
+        int actual = bin.getBin(toss);
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void testCreateBins(){
+        for(int i=noOfDies; i<=noOfDies*6;i++)
+        {
+            map.put(i,0);
+        }
+        Assert.assertEquals(map, bin.getBins());
+    }
+
+   @Test
+    public void testGetBins(){
+        map.put(2,0);
+        int expected = 0;
+        int actual = bin.getBin(2);
+        Assert.assertEquals(expected, actual);
+   }
+
+
+
+
+
+}

src/test/java/DiceTest.java

@@ -0,0 +1,16 @@
+import org.junit.Assert;
+import org.junit.Test;
+
+public class DiceTest {
+
+    @Test
+    public void testTossAndSum(){
+
+        Dice dice = new Dice(2);
+        int actual = dice.tossAndSum();
+
+        Assert.assertTrue(actual>2 && actual<12);
+
+    }
+
+}