FAQ: Working with Text - Get Parts of Strings

This community-built FAQ covers the “Get Parts of Strings” exercise from the lesson “Working with Text”.

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FAQs on the exercise Get Parts of Strings

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1 Like

I have found a strange answer to one of the exercises.

Here is the exercise: https://www.codecademy.com/courses/learn-c-sharp/lessons/csharp-working-with-text/exercises/get-parts-of-strings

The way we are taught and expected to answer goes along those lines:

      int charPosition = name.IndexOf("F");
      char firstLetter = name[charPosition];

Isn’t it strange? We write a code for finding what the first letter is by writing the first letter manually. Wouldn’t a better answer be:

char firstLetter = name[0];

I am no pedagogy specialist, but I would tend to believe that the intend answer is a bit redundant and purposeless. What do you guys think?

P.-S.: I’m a new C# learner, so maybe I got something completely wrong. Let me know if I did.


I agree with you that if all we’re trying to do is get the first letter of a string, and convert it char
char firstLetter = name[0]; is much more efficient. Probably, they were trying to illustrate the use of the IndexOf() method, but it might have been a better lesson if they used a letter other than the first, and named the variable something like positionOfLetter.
Maybe something like this would demonstrate the functionality of IndexOf() better:

string name = "Benjamin Franklin";
int charPosition = name.IndexOf("F");
char firstLetter = name[charPosition];
Console.WriteLine(firstLetter + " is the " + charPosition + "th letter in " + name + ".");
1 Like

Actually it would be the charPosition + 1 letter since IndexOf() starts at 0. Oops! :man_facepalming:

Console.WriteLine(firstLetter + " is the " + (charPosition + 1) + "th letter in " + name + ".");

Upvoting. Hopefully they revisit this lesson refactor.

I completely agree! I couldn’t even figure out what I was supposed to use for IndexOf(), because each person will have a different letter.