Question

Is this both the same:

private int x;
public int X
{
    get { return x; }
    set { x = value; }
}

and

public int X
{
    get { return x; }
    set { x = value; }
}

I mean is it enough to use the second case or there are special cases I should use the first case?

because I sometimes see codes with first case and sometimes with second case, so i have confused

Answer 1

Your 2nd case wont compile – as ‘x’ (lowercase) isn’t defined.

The other option is to use an ‘automatic property’

public int X {get; set;}

All this does, is make the compiler automatically generate a backing field behind the scenes, that you can’t directly access, but is mostly the same as your first example.