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iOS Objective-C Basics (Retired) Foundation Framework NSNumber

Posted by Nate Smith
Nate Smith
6,911 Points

Declare another variable named 'planck' of type NSNumber and assign it the value 6.626.

Why is this wrong? I can't for the life of me find the syntax error here given the instructions above: NSNumber *planck = [[NSNumber alloc] initWithFloat:6.626];

4 Answers

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

your code looks correct and I cant figure out why it wont work. Try using a literal like you did in the first task:

NSNumber *planck = @6.626;
Albert Saucedo
Albert Saucedo
2,365 Points
Albert Saucedo
Albert Saucedo
2,365 Points

The correct answer is just:

NSNumber *planck = @6.626;

I know, we were taught the other way using 'initWithFloat' on floats which made it confusing. -_-

John Carr
PLUS
John Carr
Courses Plus Student 1,984 Points
John Carr
John Carr
Courses Plus Student 1,984 Points 
NSNumber *aFloat = [NSNumber numberWithFloat:26.99f];

or

NSNumber *aFloat = @26.99F;
John Carr
PLUS
John Carr
Courses Plus Student 1,984 Points
John Carr
John Carr
Courses Plus Student 1,984 Points 
NSNumber *mike;
    //load a value into mike
    mike = [[NSNumber alloc] initWithInt:23]; //make it an integer number (initwithint)

This might help you out. Not the answer but might help :-)