Objective-C Language NSString Formatting
Example
The NSString formatting supports all the format strings available on the printf ANSI-C function. The only addition made by the language is the %@ symbol used for formatting all the Objective-C objects.
It is possible to format integers
int myAge = 21;
NSString *formattedAge = [NSString stringWithFormat:@"I am %d years old", my_age];
Or any object subclassed from NSObject
NSDate *now = [NSDate date];
NSString *formattedDate = [NSString stringWithFormat:@"The time right now is: %@", now];
For a complete list of Format Specifiers, please see: Objective-C, Format Specifiers, Syntax
