Question

I am trying to concatenate two strings with NSString initWithFormat, and I am getting garbage output. Here is my code:

userLabel.text = [NSString stringWithFormat:@"@%s",[[tweets objectAtIndex:0] screen_name]];

The output should be something like this – “@username”, while at the moment it is coming out like this – “@`;á”. Is there an escape sequence I need to use to display an @ symbol correctly in an NSString?

Answer 1

If screen_name is an NSString, use "@%@" format. The %s format is for C strings.