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iOS Object-Oriented Objective-C Memory, Arrays and Loops, Oh My! Alloc and Init

Luis Paulino
PLUS
Luis Paulino
Courses Plus Student 1,779 Points

Hello, How do I fix this syntax error?

It's saying that I'm writing thee initwithObjectAndKey wrong, but there could be another mistake.

variable_assignment.mm
NSMutableDictionary *carDict; carDict=[NSMutableDictionary];[CarDictiniwithObjecktAndKey:@"Honda",@"Make",@"Accord"@"Model",nil];

1 Answer

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi there! First, it wants the declaration, allocation, and initialization all in one line of code. This is specified by the instructions of the challenge. However, you have used several lines of code. You've forgotten a comma in your key/value pairs, your square brackets are misplaced, and you've misspelled "init" as "ini". Here's how I did it:

NSMutableDictionary *carDict = [[NSMutableDictionary alloc]initWithObjectsAndKeys: @"Honda", @"Make", @"Accord", @"Model", nil];

This creates a NSMutableDictionary and assigns it to the variable name carDict. We begin by allocating memory to the dictionary and then use initWithObjectsAndKeys to set our beginning key/value list per the challenge instructions and terminate it with nil.

Hope this helps! :sparkles: