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C# C# Collections Sets and Dictionaries Using Dictionaries

Posted by Mohamed Monir
Mohamed Monir
22,362 Points

i need to understand this task

i tray to add the work to Dictionary

LexicalAnalysis.cs 
using System.Collections.Generic;

namespace Treehouse.CodeChallenges
{
    public class LexicalAnalysis
    {
        public Dictionary<string, int> WordCount = new Dictionary<string, int>();

        public void AddWord(string word)
        {
            int num=0;
           WordCount.Add(word , num);
            num++;
        }
    }
}
Mohamed Monir
Mohamed Monir
22,362 Points

if(WordCount.ContainsKey(word)) { WordCount[word] += 1; } else { WordCount.Add(word, 1); }

1 Answer

Steven Parker
Steven Parker
231,268 Points
Steven Parker
Steven Parker
231,268 Points

You won't always add to the dictionary. First check if the word is already there, and if so, just change the count value associated with it. Add the word only if the word is not already there.

And when you add a word, start the count off at 1 instead of 0, so you count the word that caused it to be added.

Mohamed Monir
Mohamed Monir
22,362 Points

i tray many code to solve it like use try and use if but i need to know how to solve this problem

Steven Parker
Steven Parker
231,268 Points
Steven Parker
Steven Parker
231,268 Points

Your code needs to include these steps:

  • check if the word is already in the dictionary
  • if it is, raise the count value by one
  • if it is not, add it to the dictionary with a count of 1

After you have code that should perform all of those steps, if it's still not working start a new question.