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Interview Question

Interview Seattle, WA

Design a Parking Garage


Interview Answer

2 Answers


Wasn't honestly expecting an OO Design question this early in the interview process, but it is what it is.

Interview Candidate on May 14, 2014

Just a small part of an example: @interface Garage : NSObject @property (strong, nonatomic, readonly) NSArray *employees; @property (strong, nonatomic, readonly) NSArray *clients; - (void)addEmployee:(Employee *)employee; - (void)removeEmployee:(Employee *)employee; - (void)insertClient:(Client *)client; - (void)removeClient:(Client *)client; @end --- @interface Employee : Person @property (atomic, readonly, getter = isFree) free; - (void)extractVehicle:(Vehicle *)vehicle fromGarage:(Garage *)garage; - (void)parkVehicle:(Vehicle *)vehicle inGarage:(Garage *)garage; @end — @interface Client : Person @proprty (strong, nonatomic, readonly) Vehicle *vehicle; - (instancetype)initWithName:(NSString *)name surname:(NSString *)surname vehicle:(Vehicle *)vehicle; @end --- @interface Person : NSObject @property (copy, nonatomic, readonly) NSString *name; @property (copy, nonatomic, readonly) NSString *surname; ... @end — @interface Vehicle : NSObject etc. @end

Matteo Gobbi on Jun 15, 2014

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