From 4868f7d221ab3056026f0c1ffe4784e235f8e41a Mon Sep 17 00:00:00 2001
From: Reduan Azouaghe <reduan.azouaghe@no.experis.com>
Date: Tue, 12 Aug 2025 12:41:27 +0200
Subject: [PATCH] Finished core and extention.

---
 csharp-fundamentals-maps.Main/Core.cs      | 57 ++++++++++++----------
 csharp-fundamentals-maps.Main/Extension.cs | 13 ++---
 2 files changed, 34 insertions(+), 36 deletions(-)

diff --git a/csharp-fundamentals-maps.Main/Core.cs b/csharp-fundamentals-maps.Main/Core.cs
index 8f4d84a..687c997 100644
--- a/csharp-fundamentals-maps.Main/Core.cs
+++ b/csharp-fundamentals-maps.Main/Core.cs
@@ -6,19 +6,19 @@
 
 namespace csharp_fundamentals_maps.Main
 {
-     public class Core
-     {
-    
-     /*
-          The final fundamental building block of C# is a Dictionary. There is still much to learn about the language,
-          but this component will allow you to start building lots of more complex pieces of software.
-    
-          Dictionary<K, V>
-          K is where you'd put the data type of the key for an item, V is the data type of the value.
-          If we wanted to map a persons details (their first name, last name, occupation etc.), we could use
-          a Dictionary using a String key and a String value like so:
-          Dictionary<string, string>
-     */
+    public class Core
+    {
+
+        /*
+             The final fundamental building block of C# is a Dictionary. There is still much to learn about the language,
+             but this component will allow you to start building lots of more complex pieces of software.
+
+             Dictionary<K, V>
+             K is where you'd put the data type of the key for an item, V is the data type of the value.
+             If we wanted to map a persons details (their first name, last name, occupation etc.), we could use
+             a Dictionary using a String key and a String value like so:
+             Dictionary<string, string>
+        */
 
         //TODO: Spend some time understanding the method below
         /*
@@ -48,9 +48,9 @@ in the createPerson method
 
         public string getValue(string key)
         {
-            
-           
-            return string.Empty;
+
+
+            return createPerson()[key];
 
 
         }
@@ -62,11 +62,11 @@ 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)
-         {
-            return false;
-            
-         }
+        public bool hasKey(Dictionary<string, string> dictionary, string isitthere)
+        {
+            return dictionary.GetValueOrDefault(isitthere) != null;
+
+        }
 
 
         //TODO: 3. Modify method named getValueOrDefault that accepts two parameters:
@@ -76,9 +76,9 @@ 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;
+            return dictionary.GetValueOrDefault(isitthere, -1);
 
         }
 
@@ -94,7 +94,7 @@ input                       output
         public List<string> buildSecretPhrase(int[] numbers)
         {
             List<string> results = new List<string>();
-            
+
             // Do not modify the map
             Dictionary<int, string> map = new Dictionary<int, string>();
             map.Add(23, "chicken");
@@ -105,10 +105,13 @@ public List<string> buildSecretPhrase(int[] numbers)
             map.Add(96, "nice");
             // Write your code below this comment...
 
-           
+            foreach (int n in numbers)
+            {
+                results.Add(map.GetValueOrDefault(n, "unkown"));    
+            }
 
-            //    // ...and above this comment
+            // ...and above this comment
             return results;
-        }            
+        }
     }
 }
diff --git a/csharp-fundamentals-maps.Main/Extension.cs b/csharp-fundamentals-maps.Main/Extension.cs
index 2deb96d..0f9a390 100644
--- a/csharp-fundamentals-maps.Main/Extension.cs
+++ b/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);
@@ -36,23 +36,18 @@ 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.
 
-            
+            _planets.Keys.ToList().ForEach(k => result[k] = k.Length);
 
             return result;
         }
 
-
-
-
-
-
         public Dictionary<string,float> OrderedPlanets()
         {           
                 return _planets.OrderBy(x => x.Value).ToDictionary(x => x.Key, x => x.Value);                           
         }
         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
 
@@ -67,7 +62,7 @@ public Dictionary<string, float> OrderedPlanetsByDescending()
 
         public string FurthestFromTheSun()
         {
-            return string.Empty;      
+            return OrderedPlanetsByDescending().Keys.First();      
         }
         public string ClosestToTheSun()
         {