help plz

Hi Shawn,

So this one was quite confusing based on the actual question itself:

"Code the AddWord method such that, WordCount will contain the number of times the AddWord method has been called with a given word."

What it is actually requires is what Steven posted.

• you'll need to test if the word is already in the dictionary
• if it is, you will add 1 to the count that it already has
• if it is not, you will add it with a count of 1

So the first step is to go through the methods listed in the Dictionary Class to find one that will check IF the "Key" is already in the dictionary; in this case the "Key" is the variable "word" that is being passed. A method that will accomplish this nicely is the "ContainsKey" method. Since this method returns a true or false, a simple if else statement can be used to accomplish the next to two steps.

Remember that as in Arrays, when you need to get a value from the array you can type, sampleVar = sampleArray[samplePosition]

Or to set it, sampleArray[samplePosition] = sampleVar

So to increase the "Value" by 1, the code would be or with some syntactic sugar....

exampleDictionary[examplePosition] =  exampleDictionary[examplePosition] + 1;
exampleDictionary[examplePosition] += 1;
exampleDictionary[examplePosition] ++;

A simple ++ will work just fine.

As for the ELSE part of the condition, search the Dictionary Class methods again to find the "Add" method that will, as it implies, add to the current Dictionary. You will need to pass the "word" variable as the "Key" and the integer "1" for the "Value"; (Key, Value) = (word, 1).

Code Sample:

public void AddWord(string word)
        {
            if (WordCount.ContainsKey(word))
            {
                WordCount[word]++;
            }
            else
            {
                WordCount.Add(word, 1);
            }
        }

I hope this helps.

Resources:

• https://msdn.microsoft.com/en-us/library/xfhwa508(v=vs.110).aspx
• https://msdn.microsoft.com/en-us/library/kw5aaea4(v=vs.110).aspx
• http://stackoverflow.com/questions/7132738/is-this-the-best-way-to-increment-an-integer-in-a-dictionary/7132978#7132978

This also works:

using System.Collections.Generic;
using Newtonsoft.Json.Linq;

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

        public void AddWord(string word)
        {
            try
            {
                WordCount.Add(word, 1);
            }
            catch
            {
                WordCount[word] +=1;
            }
        }
    }
}

The brevity of this question was confusing. Here's Katrin's clever code solution formatted pretty.

using System.Collections.Generic;

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

        public void AddWord(string word)
        {
            bool check = false; 

            foreach (string entry in WordCount.Keys) 
            { 
                if (entry == word) 
                { 
                    check = true;
                    break; 
                } 
            }            
            if (check) { 
                WordCount[word] += 1; 
            } else { 
                WordCount.Add(word, 1); 
            }          
        }
    }
}

Here are a few hints:

• you'll need to test if the word is already in the dictionary
• if it is not, you will add it with a count of 1
• if it is, you will add 1 to the count that it already has

I tried to solve in one line which didn't work. So I added all the checks and solved it with this code:

public void AddWord(string word) { bool check = false; foreach (string entry in WordCount.Keys) { if (entry == word) { check = true; break; } }

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

I am sorry, I have again worked on this a long time, but still need your help. Thanks!!!