FREE Bachelor of Computer Engineering Object Oriented Programming Questions and Answers
Which of the following is not a component of OOP?
OOP does not have a platform independence feature. OOP is supported by C++, however the language is not platform independent. The programming language determines platform independence.
When did the OOP concept initially come into existence?
OOP was created for the first time by Alan and his colleagues in the 1970s. SmallTalk was the first computer language to adopt pure OOP and adhere rigorously to all rules. Later, it was used by various programming languages and successfully implemented.
What is the proper inheritance syntax?
The derived class name should come first, then the keyword class. Access, from which the base class must be derived, is followed by a colon, then the name of the base class. The class's body comes last. Semicolon is also required after the body.
Which header file does C++ need to use OOP?
Only individual functions used in code require their appropriate header files to be included, or classes to be established if necessary, in order to apply the OOP idea in C++.
Which OOP principle is most prominently applied in multilevel inheritance?
If accessible, the code from all future subclasses will be used by the classes that employ multilevel inheritance. Therefore, code reuse is the most important feature of the options presented. In general, this feature aims to reuse redundant functions and make use of data values.
How many different kinds of access specifiers are there in OOP (C++)?
There are only 3 different kinds of access specifiers. Specifically, secure, private, and open. Depending on the members' security needs, any one of these three options can be used.
Who invented the OOP?
OOP was created by Alan Kay, and Andrea Ferro worked on SmallTalk Development. Adele Goldberg was on the SmallTalk development team, and Dennis designed C++, but Alan was the one who received recognition for OOP.
Regarding polymorphism, which of the following is false?
Even if you don't use polymorphism, you will still use the definition of the function in some other way, thus it actually makes it easier to design efficient code.
Why does Java include some OOP features?
Java enables the standard declaration of data variables, hence OOP is only partially implemented. Because using object constructors is required by OOP principles, even when declaring variables.
In object-oriented programming, what exactly is an abstraction?
The implementation portion is hidden, and the user is only shown the necessary data and functionalities. It is done to shield the user from the intricacy and specifics of the implementation. additionally to offer a strong programming interface.
Which programming language was the first to focus solely on objects?
The first entirely object-oriented programming language was called SmallTalk. Alan Kay was the one who created it. The OOP notion first appeared in the 1970s.
What attribute of OOP denotes code reuse?
Code reuse is indicated via inheritance. Abstraction and encapsulation are used to disguise or combine data into a single piece. Polymorphism is used to describe various functions carried out by a single organism.
Which of the following statements is true for an OOP language?
To be referred to as a totally OOP language, the language must adhere to all of the OOP rules. It is recognized as a largely OOP language even if only one OOP feature is used.
The characteristic that allows one object to interact with another object is .
The message forwarding feature is used to describe the interaction between two objects. OOP does not include a feature for data transport. Additionally, message reading is not an OOP feature.
What in OOP is encapsulation?
It is a method for integrating member functions that work on data members and the data members themselves into a single entity. Typically in OOP, we refer to it as a class. We were able to update the C language's structures to classes in C++ and other languages thanks to this functionality.
What does a general definition of OOP not include as an attribute?
OOP cannot ensure duplicate or redundant data because it depends on the programmer. Inheritance facilitates code reuse. In order to support modularity, many code files and classes are used. OOP features increase the efficiency of codes.