Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Francisco Micó Juan
Francisco Micó Juan
1,156 Points
Posted by Francisco Micó Juan
Francisco Micó Juan
1,156 Points

Problem with alloc ant init - ObjC

This is the Challenge: 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.

Thanks for the helping.

variable_assignment.mm 
NSMutableDictionary *carDict;

carDict = [NSMutableDictionary alloc];

[carDict initWithObjectsAndKeys: @"Make", @"Honda", @"Model", @"Accord", nil];

1 Answer

Francisco Micó Juan
Francisco Micó Juan
1,156 Points
Francisco Micó Juan
Francisco Micó Juan
1,156 Points

Thanks, I discover solutions:

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