Print Method in NSLog - ios

Question

-(void) print {
NSLog(#"%i/%i", numberator, denominator);
}
Fraction *myFraction = [Fraction new];
[myFraction setNumberator:1];
[myFraction setDenominator:3];
Now I have other methods made like dividing both numerator and denominator etc. But i want to add in my [myFraction] in the NSLog with everything else rather than on a new line
NSLog(#"The value of my fraction is: %i/%i which equals to: %.3g * 100 = %.4g%%", [myFraction numberator], [myFraction denominator], [myFraction convertToNum], [myFraction multiplyBy100]);
is there anyway i can add in the [myFractions print] where the two %i %i is, so i don't have to type in [myFraction numerator/denominator]
eg.
NSLog(#"%#", [myFractions Print];
result: 1/3

Answer 1

You can usedescription method. You can override it in your class to return string representation of your class.
In your case you can use the following code:
-(NSString*) description {
return [NSString stringWithFormat:#"%i/%i", numerator, denominator];
}
to print the object you can then use it like this
NSLog("Fraction = %#", yourFractionObj);
See Describing objects.

Answer 2

Instead of your print method, override the description method on your Fraction class like this:
- (NSString *)description {
return [NSString stringWithFormat:#"%i/%i", numberator, denominator];
}
The description method is automatically called when you print an object using NSLog, so you can now write logs like this:
NSLog(#"The value of my fraction is: %# which equals to: %.3g * 100 = %.4g%%", myFraction, [myFraction convertToNum], [myFraction multiplyBy100]);
If you need the print method for another reason you can now write it like this:
- (void) print {
NSLog(#"%#", self);
}

Answer 3

You can use func or FUNCTION. It will print the method name with class name. For Example
NSLog(#"%s",__func__);