How do a input a sentence as a variable?

Question

I've tried a few methods
Char a;
Char a(.);
Char a{.};
The output only prints one character

Char a[any number]; this allows no limit of words but does not allow spaces to create sentences

I'd like something like
Cout<<"you are a"<<a;

//*outputs
You are a wizard harry

Thank you

Answer 1

you want to look into strings.

Answer 2

[] is usually an array. You want to use a string instead of a char as they are fundametally different and chars is not meant to be used like this.

Answer 3

Also im curious as to know why there is no difference between the first three
And what does the number in the [] in the fourth method represent.
Tha