tailieunhanh - HandBooks Professional Java-C-Scrip-SQL part 116

Tham khảo tài liệu 'handbooks professional java-c-scrip-sql part 116', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | - unsigned hash Returns an integer that can be used to store the object in a hash table. If two objects are equal as reported by the -isEqual method they will have the same hash value. However two unequal objects may also share the same hash value. NSObject protocol - BOOL isEqual id obj ect Returns YES if the receiver and obj ect are equal as pointers otherwise returns NO. Override to provide different semantics such as equality of contents. NSObject protocol Class class Returns the class object that represents the receiver not as you might expect the metaclass object of the metaclass of the receiver. This means that MyClass class and MyClass self return the same value the second expression is probably more clear. NSObject class NSString description Returns the name of the class. NSObject class void setVersion int version Sets the class version number. NSObject class int version Returns the class s version number or zero if it has never been set. NSObj ect class Class superclass Returns the class object representing the receiver s parent class. NSObj ect class Testing inheritance and conformance Use the following methods to find out about an object s place in the inheritance hierarchy BOOL conformsToProtocol Protocol prot Returns YES if the receiver adopts prot directly or inherits directly or indirectly from another class that does. NSObject class - BOOL isKindOfClass Class C If the receiver is an ordinary object returns YES if the receiver s class is represented by C or is a descendant of the class represented by C NO otherwise. If the receiver is a class object returns YES if C represents NSObject NO otherwise. This is consistent with the special property that class objects appear to be instances of the root object class. If the receiver is a metaclass object returns YES if C represents NSObject or NSObject s metaclass NO otherwise. NSObject protocol - BOOL isMemberOfClass Class C Is part of the NSObject protocol and does one of the following If the .