Mona Eikli

csharp-fundamentals-maps.Main/Core.cs

@@ -48,11 +48,8 @@ in the createPerson method
 
         public string getValue(string key)
         {
-
-
-            return string.Empty;
-
-
+            var map = createPerson();
+            return map.TryGetValue(key, out var value) ? value : string.Empty;
         }
 
         //TODO:  2. Modify below method named hasKey that accepts two parameters:
@@ -62,9 +59,9 @@ public string getValue(string key)
             The method must return a boolean that represents whether the string provided exists as a key
             in the provided dictionary
          */
-         public bool hasKey(Dictionary<string,string> dictionary, string isitthere)
+        public bool hasKey(Dictionary<string,string> dictionary, string isitthere)
          {
-            return false;
+            return dictionary.ContainsKey(isitthere);
 
          }
 
@@ -76,13 +73,20 @@ public bool hasKey(Dictionary<string,string> dictionary, string isitthere)
             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;
+            }
         }
 
 
+
         //TODO: 4. Complete the method below
         /*
             Example input & output:
@@ -105,7 +109,13 @@ public List<string> buildSecretPhrase(int[] numbers)
             map.Add(96, "nice");
             // Write your code below this comment...
 
-
+            foreach (int number in numbers)
+            {
+                if (map.ContainsKey(number))
+                {
+                    results.Add(map[number]);
+                }
+            }
 
             //    // ...and above this comment
             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);
@@ -36,7 +36,10 @@ public Dictionary<string,int> LettersInName()
             //          the planet name and the number of letters in its name
             //          iterate the _planets using a foreach object to load the result dictionary.
 
-
+            foreach (KeyValuePair<string, float> planet in _planets)
+            {
+                result.Add(planet.Key, planet.Key.Length);
+            }
 
             return result;
         }
@@ -52,9 +55,9 @@ 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
+        //TODO:  modify the OrderedPlanetsByDescending so   dictionary is not doing an OrderBy but OrderByDescending
 
 
 
@@ -66,8 +69,10 @@ public Dictionary<string, float> OrderedPlanetsByDescending()
 
 
         public string FurthestFromTheSun()
-        {
-            return string.Empty;      
+        {      
+
+            KeyValuePair<string, float> result = OrderedPlanets().Last(); 
+            return result.Key;
         }
         public string ClosestToTheSun()
         {