Find the most frequent character or number in a string with C# .NET.

Question

Suppose user input a string and returns the character that occurs the most frequently in it. Example - Aptara ---Here ans is a 3 times 1212332133733-- Here ans is 3

Sachin Singh · Answer

The easiest would be string str= "Aptara"; var maxCharWithCount= (from c in str group c by c into g select new { c = g.Key, count = g.Count(), }).OrderByDescending(c => c.count).first(); Console.WriteLine(maxCharWithCount.c + ": " + maxCharWithCount.count);

Naimish Makwana · Answer

Hello Rajeev, Try below string input = "Aptara "; char mostFrequent = input .GroupBy(c => c) .OrderByDescending(g => g.Count()) .First() .Key; Console.WriteLine("The most frequently occurring character is: " + mostFrequent); Thanks

Jignesh Kumar · Answer

private static void GetMostFrequentCharacterFromString(string str) { Dictionary chars = new Dictionary (); foreach (char c in str.ToLower()) { if (chars.ContainsKey(c)) chars[c]++; else chars.Add(c, 1); } int max = chars.Values.Max(); var mostFoundCharacter = chars.Where(b => b.Value == max).Select(b => b.Key).First(); Console.WriteLine($"Most Count Found for {mostFoundCharacter} : {max}"); } Hi Rajeev, Please try this code snippet,

Sardar Mudassar Ali Khan · Answer

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Algorithms { public class MaxChar { public char GetMostFrequentChar(string input) { var charMap = input.Distinct().ToDictionary(c => c, c => input.Count(s => s == c)); return charMap.OrderByDescending(kvp => kvp.Value).First().Key; } } } You can get help from the given below Code