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iOS

cameryn smith
cameryn smith
2,828 Points

How do you know the return type of a method?

Oh yea, and when would you want a method to return void?

3 Answers

Alfian Losari
Alfian Losari
9,495 Points

It depends, if you use an Object which is based on Cocoa Framework, then you must refer to the documentation of the class to know the return type of a method in Class. Here is the basic concept to read a method in Objective-C:

  • (returnType) methodName:parameter1 ...:parameter2 ...:parameter3 ....;
Alfian Losari
Alfian Losari
9,495 Points

You use void when you do not expect your method to return anything. You just want to run all the code in the method.Here is the example:

  • (void)printDate: { NSLog(@"Date is %@", [NSDate Date]); }
cameryn smith
cameryn smith
2,828 Points

Thanks so much I'm getting it more as I go :)