objective-c code to right pad a NSString?

Question

Can someone give a code example of how to right pad an NSString in objective-c please?

For example want these strings:

Testing 123 Long String
Hello          


        

Answer 1

%-@ does not work, but %-s works

NSString *x = [NSString stringWithFormat:@"%-3@", @"a" ];
NSString *y = [NSString stringWithFormat:@"%-3@", @"abcd" ];
NSString *z = [NSString stringWithFormat:@"%-3@ %@", @"a", @"bc" ];
NSString *zz = [NSString stringWithFormat:@"%-3s %@", "a", @"bc" ];
NSLog(@"[%@][%@][%@][%@].......", x,y,z,zz);

output: [a][abcd][a bc][a bc].......