Question

I just Don’t understand how to use a boolean operator inside a switch statement

switch (expression) {
        case > 20:
            statements
            break;
        case < -20:
            statements
            break;
    }

Edit:
I don’t want an If () statement.

Answer 1

switch ((expression) > 20) {
        case true:
            statements
            break;
        case false:
        default:
            statements
            break;
    }

What.. you want more than 1 boolean in a case? You could do this

int ii = ((expression) > 20) + 2 * ((expression) < -20);
switch (ii) {
        case 1:
            statements
            break;
        case 2:
            statements
            break;
    }

This, IMO is pretty bad code, but it is what you asked for…

Just use the if statement, you’ll be better off in the long run.