How can I get a character in a string by index?

Question

I know that I can return the index of a particular character of a string with the indexof() function, but how can I return the character at a particular index?

Meadowsweet

I'm sure I'm missing something, but if you know the character to use when calling indexof() why do you then need to get it from the string? You could just return the character possibly using indexof() to prove it is in the string first. – Dree

^ Yes, missing the ability to read. The OP didn't say s/he already has the character, or even anything close to that. – Stigmatic

@MikeTwo The OP doesn't know the index of the character. – Miracidium

Answer 1

string s = "hello";
char c = s[1];
// now c == 'e'

See also Substring, to return more than one character.

Lacreshalacrimal

Answer 2

Do you mean like this

int index = 2;
string s = "hello";
Console.WriteLine(s[index]);

string also implements IEnumberable<char> so you can also enumerate it like this

foreach (char c in s)
    Console.WriteLine(c);

Latham

How can I use your second option, (enumerating) but count the chars two at a time? e.g. "4567" will output to "45" first then "67" next. How would I do that? Thanks :) – Winther

@Momoro: foreach (string substring in s.Chunk(2)) { ... }. Enumerable.Chunk is built-in in .NET 6+, you can find example implementations for other versions here: https://mcmap.net/q/270201/-how-do-i-chunk-an-enumerable/87698 – Nonessential