In switch can I show the condition like I do with 'if else'?

Question

In switch can I show the condition like I do with 'if else'?
For example
if (a>18){
cout <<"you can use this app"<<endl;
}
else {
cout <<"you can't use this app"<<endl;
}

Here after "if" I used condition (a>18).

My question is can I show smth like that (a>18) in 'switch' ?

Answer 1

switch doesn't work with ranges of values. only int and string.

You could do something like:
switch (a) {
case 1:
case 2:
case 3:
case n:
case 17:
cout <<"you can't use this app"<<endl;
break;
default:
cout <<"you can use this app"<<endl;
break;
}

But that is a bit ridiculous and certainly not good code practice. Stick with if/elseif/else for situations like yours. Is there a particular reason you want it to be a switch?
(also do you want the condition to be older than 18 or 18 and older? you have a > 18 which does not include 18.)

Answer 2

Thank you a lot!