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

Create an NSMutableDictionary called 'carDict'. Allocate memory and initialize 'carDict' with the following key/value pa

Create an NSMutableDictionary called 'carDict'. Allocate memory and initialize 'carDict' with the following key/value pairs: "Make":"Honda", "Model":"Accord". Do this all in one line of code.

I am confused with this one.

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

it runs fine with Xcode.

variable_assignment.mm
NSMutableDictionary * carDict = [[NSMutableDictionary alloc] initWithObjectsAndKeys:@"Make", @"Honda",@"Model",@"Acoord",nil];     

2 Answers

So close. You just have the keys and values reversed:

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

Oops, thank you so much

David Adams
PLUS
David Adams
Courses Plus Student 555 Points

Can also use NSMutableDictionary *carDict2 = [NSMutableDictionary dictionaryWithObjectsAndKeys:@"Honda", @"Make", @"Accord", @"Model", nil];