Why are those strings not equal?

Question

 NSLog(@"%@",variable);
 temp = @"(null)";
 if([variable  isEqualToString:temp])

This is the code that I use and as output I get

[4298:207] (null)

But of course for some reason they are not equal. It's beyond me to understand this. Both variables are of type NSString.

Answer 1

(null) is just the output the %@ format specifier gives when the value is nil. What is in variable is nil, not the literal string (null)