working on simulation class

src/main/java/Bins.java

@@ -1,4 +1,23 @@
+import java.util.HashMap;
 
 public class Bins {
 
+    HashMap<Integer, Integer> results;
+
+    int min;
+    int max;
+
+    public Bins( int min, int max) {
+        this.results = new HashMap<Integer, Integer>();
+        this.min = min;
+        this.max = max;
+
+        for(int i = min; i <= max; i++) {
+            this.results.put(i, 0);
+        }
+    }
+
+    public HashMap getResults(){
+        return this.results;
+    }
 }

src/main/java/Dice.java

@@ -1,4 +1,18 @@
-public class Dice {
+public class Dice{
 
 
+private int numberOfDice;
+
+    public Dice(int numDice) {
+        this.numberOfDice = numDice;
+    }
+
+    public int tossAndSum() {
+        int total = 0;
+
+        for(int i = 0; i< this.numberOfDice; i++) {
+            total += (int) (Math.floor(Math.random() *6 ) + 1);
+        }
+        return total;
+    }
 }