to provide the library with more information
False. Public member data is accessible to all functions, whether they be public, protected or private members of the same class, or they are outside of the class completely.
Any member functions and data members declared as 'private' in a class, can only be accessed directly by functions within the class.They cannot be accessed directly by derived objects, nor from anywhere outside an object of the class, such as from the Main function.To access private class members, you must rely on what are called accessor functions. Accessor functions are functions inside the class, either public or protected, which automatically have access to private members.If a function from Main, or elsewhere outside the class hierarchy, needs access, then you need to use publicaccessor functions. For derived class access, you can use protected accessor functions.
You simply access it. That's what public means. You can access a public member from any other class, or even from non class code, so long as the referenced class is in scope to the referencing code. In order to do that, you need to have a reference (directly or indirectly) to the instance of the class you want to reference. This would generally be passed as an argument to the referencing code.
In container class we can only access the public part of base class. For accessing of private and protected part of base class we use friend functions.
Class access is the ability for any given class to access the functions of another class. Private access limits access to data and code just to the class that contains the private access modifier. The so-called "default" access grants private access, as well as access to any class in the same package. Protected access grants the same as "default" access, and also allows subclasses to access the code and data. Public access allows any class in any package to access the code and data.
OPAC-online public access catalog
An Online Public Access Catalog.
wala
well search it in the online public access catalog
Advantages of Online Public Access Catalogue (OPAC) : -instant informationeasier to user to find bookseasy to use
Online Public Access Catalog is the full form of OPAC. It is a kind of database in the library.
Database is used so that people can be able to access e-books, journals using Databases such as Ebcohost, Online Public Access Catalog (OPAC).
Database is used so that people can be able to access e-books, journals using Databases such as Ebcohost, Online Public Access Catalog (OPAC). from L.Malangeni
there is much similarities between the opac and the card catalog than differences.The difference between the two is that, opac is an on line catalogue with the same information as the card catalogue while the card catalogue is a card. So opac is the modernize card catalogue.
Louise Sharon Sherby has written: 'The design and implementation of an online public access catalog in a large, multi-unit library'
Mi-hyeon Kim has written: 'Influence of several screen design variables on the usability of an OPAC (Online Public Access Catalog)'
The twelve parts of a card catalog are author, publisher, title entry, date of publication, place of publication, number of pages, height, illustrations, subject, ISBN number, Dewy decimal number, and title for record. Most card catalog have been replaced by the Online Public Access catalog.