Update Program.cs

WorkingWithText/Program.cs

@@ -11,17 +11,91 @@ public static class WorkingWithText
         // to see if there are duplicates. If so, return bool True; otherwise, return bool False.
         public static bool AreThereDuplicates(string hyphenNum)
         {
-            return default;
+            bool result = false;
+            try
+            {
+                List<int> nums = hyphenNum.Split('-').Select(int.Parse).ToList();
+
+                for (int i = 0; i < hyphenNum.Count(); i++)
+                {
+                    for (int j = 0; j < nums.Count(); j++)
+                    {
+                        try
+                        {
+                            if (i != j)
+                            {
+                                if (Convert.ToInt32(nums[i]) == Convert.ToInt32(nums[j]))
+                                {
+                                    result = true;
+                                    return result;
+                                }
+                            }
+                        }
+                        catch
+                        {
+                        }
+                    }
+                }
+            }
+            catch
+            {
+                return result;
+            }
+
+            //char[] hyphenCheck = hyphenNum.ToCharArray();
+            //result = Char.IsNumber(hyphenCheck[0]);
+            //result = Char.IsNumber(hyphenCheck[hyphenCheck.Length - 1]);
+            //for (int i = 0; i < hyphenCheck.Length; i++)
+            //{
+            //    try
+            //    {
+            //        if (Convert.ToString(hyphenCheck[i]) != "-" || Char.IsNumber(hyphenCheck[0]) == false)
+            //        {
+            //            result = false;
+            //            break;
+            //        }
+            //        else if (hyphenCheck[i] == hyphenCheck[i + 1])
+            //        {
+            //            result = false;
+            //            break;
+            //        }
+            //    }
+            //    catch
+            //    {
+
+            //    }
+            //}
+            return result;
         }
-        
+
         // 2- Write a method that accepts a string of numbers separated by a hyphen. If the input 
         // is NOT in the correct format OR is NOT consecutive then return bool False. If the format 
         // is correct AND the numbers are consecutive, return bool True. For
         // example, if the input is "5-6-7-8-9" or "20-19-18-17-16", return bool True.
         // Do not use .Sort, it will cause the test to pass when it actually does not.
         public static bool IsConsecutive(string hyphenNum)
         {
-            return default;
+            bool isConsecutiveAcending = false;
+            bool isConsecutiveDecending = false;
+
+            try
+            {
+                List<int> nums = hyphenNum.Split('-').Select(int.Parse).ToList();
+                isConsecutiveAcending = !nums.Select((i, j) => i - j).Distinct().Skip(1).Any();
+                isConsecutiveDecending = !nums.Select((i, j) => i + j).Distinct().Skip(1).Any(); 
+            }
+            catch
+            {
+                return false;
+            }
+            if (isConsecutiveAcending == true || isConsecutiveDecending == true)
+            {
+                return true;
+            }
+            else
+            {
+                return false;
+            }
         }
 
         // 3- Write a method that accepts a string of a time 24-hour time format
@@ -30,7 +104,21 @@ public static bool IsConsecutive(string hyphenNum)
         // consider it as False. Make sure that its returns false if any letters are passed.
         public static bool IsValidTime(string hyphenNum)
         {
- 			return default;
+            bool result = false;
+            DateTime dt;
+            try
+            {
+                dt = Convert.ToDateTime(hyphenNum);
+                if(hyphenNum == dt.ToString("HH:mm"))
+                {
+                    result = true;
+                }
+
+            }
+            catch
+            {
+            }
+            return result;
         }
 
         // 4- Write a method that accepts a string of a few words separated by a space. Use the
@@ -40,15 +128,51 @@ public static bool IsValidTime(string hyphenNum)
         // Trim off unneeded spaces.
         public static string PascalConverter(string aFewWords)
         {
-        	return default;
+            if(aFewWords == "" || aFewWords == null)
+            {
+                return aFewWords;
+            }
+            string lowerCase = aFewWords.ToLower();
+            string[] separated = aFewWords.Split(' ');
+            string temp = "";
+            string result = "";
+            for (int i = 0; i < separated.Count(); i++)
+            {
+                temp = separated[i];
+                if (temp.Length > 1)
+                {
+                    result += char.ToUpper(temp[0]) + temp.Substring(1).ToLower();
+                }
+                else
+                {
+                    result += temp.ToUpper();
+                }
+            }
+            return result;
         }
 
         // 5- Write a method that accepts an English word. Count the number of vowels
         // (a, e, i, o, u) in the word. So, if the user enters "inadequate", the program should
         // return 6.
-        public static int VowelCounter(string aWord)
+          public static int VowelCounter(string aWord)
         {
-            return default;
+            char[] vowels = new char[] { 'a', 'e', 'i', 'o', 'u' };
+            aWord = aWord.ToLower();
+            char[] characters = aWord.ToCharArray();
+            int vowelCount = 0;
+            aWord = aWord.ToLower();
+
+            for(int i = 0; i<characters.Length; i++)
+            {
+                for(int j = 0; j<vowels.Length; j++)
+                {
+                    if(vowels[j] == characters[i])
+                    {
+                        vowelCount++;
+                    }
+                }
+            }
+            return vowelCount;
         }
     }