Chris Sivert maps

csharp-fundamentals-maps.Main/Core.cs

@@ -48,11 +48,12 @@
 
         public string getValue(string key)
         {
-
-
-            return string.Empty;
-
-
+            var person = createPerson();
+            if (person.ContainsKey(key))
+            {
+                return person[key];
+            }
+            return null; 
         }
 
         //TODO:  2. Modify below method named hasKey that accepts two parameters:
@@ -64,7 +65,7 @@
          */
          public bool hasKey(Dictionary<string,string> dictionary, string isitthere)
          {
-            return false;
+            return dictionary.ContainsKey(isitthere);
 
          }
 
@@ -76,9 +77,16 @@
             The method must use the string provided to return the integer contained in the provided HashMap,
             or -1 if the string provided is not a key in the HashMap
          */
-        public int getValueOrDefault(Dictionary<string,int> dictionary, string isitthere)
+        public int getValueOrDefault(Dictionary<string, int> dictionary, string isitthere)
         {
-            return 0;
+            if (dictionary.ContainsKey(isitthere))
+            {
+                return dictionary[isitthere];
+            }
+            else
+            {
+                return -1;
+            }
 
         }
 
@@ -94,6 +102,7 @@
         public List<string> buildSecretPhrase(int[] numbers)
         {
             List<string> results = new List<string>();
+            string value;
 
             // Do not modify the map
             Dictionary<int, string> map = new Dictionary<int, string>();
@@ -103,12 +112,17 @@
             map.Add(6712, "bass");
             map.Add(7, "muse");
             map.Add(96, "nice");
-            // Write your code below this comment...
 
-
+            foreach (var number in numbers)
+            {
+                if (map.ContainsKey(number))
+                {
+                    value = map[number];
+                    results.Add(value);
+                }
 
-            //    // ...and above this comment
-            return results;
+            }
+                return results;
         }            
     }
 }

csharp-fundamentals-maps.Main/Extension.cs

@@ -16,7 +16,7 @@ public Extension()
             _planets = new Dictionary<string, float>();
             _planets.Add("Jupiter", 5.2f);
             _planets.Add("Uranus", 19.2f);
-            _planets.Add("Pluto", 39f);
+            // _planets.Add("Pluto", 39f);
             _planets.Add("Mercury", 0.39f);
             _planets.Add("Saturn", 9.54f);
             _planets.Add("Earth", 1f);
@@ -31,13 +31,19 @@ public Dictionary<string,int> LettersInName()
         {
 
             Dictionary<string, int> result = new Dictionary<string, int>();
+            string currentKey;
+
+            foreach (KeyValuePair<string, float> kvp in _planets)
+            {
+                currentKey = kvp.Key;
+                int nameLength = currentKey.Length;
+                result.Add(currentKey, nameLength);
+            }
 
             //TODO   Complete this method to return an Dictionary of <string,int> which contains 
             //          the planet name and the number of letters in its name
             //          iterate the _planets using a foreach object to load the result dictionary.
 
-
-
             return result;
         }
 
@@ -52,7 +58,7 @@ public Dictionary<string,float> OrderedPlanets()
         }
         public Dictionary<string, float> OrderedPlanetsByDescending()
         {            
-            return _planets.OrderBy(x => x.Value).ToDictionary(x => x.Key, x => x.Value);
+            return _planets.OrderByDescending(x => x.Value).ToDictionary(x => x.Key, x => x.Value);
         }
         //TODO:  modify the OrderedPlanetsByDescending so it is not dictionary is not doing an OrderBy but OrderByDescending
 
@@ -67,8 +73,11 @@ public Dictionary<string, float> OrderedPlanetsByDescending()
 
         public string FurthestFromTheSun()
         {
-            return string.Empty;      
+            KeyValuePair<string, float> result = OrderedPlanets().Last();
+
+            return result.Key;     
         }
+
         public string ClosestToTheSun()
         {
             KeyValuePair<string, float> result = OrderedPlanets().First();