Answer (1 of 2): Probably the person asking this question wants to hear that it is a class inheritance or some other specific feature of object-oriented language the produces reused code. Polymorphism is to indicate different tasks performed by a single entity. Static and Dynamic polymorphism ( Runtime Polymorphism ) . Class: The building block of C++ that leads to Object-Oriented programming is a Class. This feature is dependent on the programming language used. As a result, he brings him to the range with his favorite rifle and teaches him how to aim and fire at targets. 10) Which operator from the following can be used to illustrate the feature of polymorphism? private (or class-private) specifiers restrict the entrance to the class itself. View Answer, 10. Polymorphism is to indicate different tasks performed by a single entity. Abstraction. And Compilation is not a part of the OOPS concept in Java. Member variables or instance variables facilitate a class instance to maintain its position. Inheritance indicates code reusability, which is a feature of OOPS, whereas all other options do not represent OOPS features. Modularity can be seen as a method of mapping encapsulated abstractions to real, physical modules with high cohesion within them and low inter-module interaction or coupling. Top 60+ OOPs Interview Questions in 2023 - Great Learning A: Since OOP is one of the main development approaches which is easily accepted, the advantages are many. These objects are organized into classes where individual objects can be grouped together. 2003-2023 Chegg Inc. All rights reserved. Which C++ OOPS feature is related to reusability? - TimesMojo 2. What is Inheritance in Java Inheritance in Java or OOPS (Object-oriented programming) is a feature that allows coding reusability. OOP promotes the reusability of code. In laymans terms, the attributes that you inherit from your parents are a simple illustration of inheritance. Method overloading is used in Compile Time Polymorphism. We can solve real-world problems if we are using object-oriented programming. What are the basic principles of OOPs? For example, when we ride a bike, we only know how to ride it but not how it works. The concept of code reusability is based on inheritance, in which a class can inherit the properties and functions of an existing well-written class. The power of object-oriented systems lies in their promise of code reuse. Sig Sauer produces some of the worlds best polymer-framed guns, as well, Copyright 2023 TipsFolder.com | Powered by Astra WordPress Theme. Hiding internal state and requiring all interaction to be performed through an object's methods is known as data encapsulation a fundamental principle of object-oriented programming. Inheritance is the feature of OOPs that describes the reusability of code. 2022 - 2023 Times Mojo - All Rights Reserved The fundamental purpose of OOP is to connect data and required functions so that no other section of the code may access them. Because a The features listed below are common among languages considered to be strongly class- and object-oriented (or The term is Greek and it loosely translates to "many forms". For example, using inheritance you can use the code of the parent class in the child class and can eliminate the duplicate code. Inheritance is passed down from one generation to the next. The main principles of object-oriented programming are abstraction, encapsulation, inheritance, and polymorphism. LIVE Course for free. a) Nested class parent. Colon is must followed by access in which base class has to be derived, followed by the base class name. Object-Oriented Programming (OOP) - Techopedia.com Improve this answer. OOP allows decomposition of a problem into a number of entities called objects and then builds data and functions around these objects. One of the advantages of using Object Oriented Programming is for code reuse, which can be achieved by two ways; either inheritance or composition. Authors of new programs can use the code in a software library to perform these tasks, instead of re-inventing the wheel, by writing fully new code directly in a program to perform an operation. Encapsulation in Object Oriented Programming OOP. Our books, pencils, and other items may be kept in our school bag. d) Encapsulation Object-oriented programming system is what OOPs stands for. . The class that provides its attributes is known as the base class and the class that accepts those attributes is known as a derived class. It cant be called as parent or instance of an object. Data abstraction is one of the most essential and important feature of object oriented programming in C++. First of all, OOP way of code reuse is not the myth at all; the problem is different. Dynamic Binding which is also known as Late binding or run-time binding, is a process of executing the part of the code at runtime. d) Virtual function Code reuse is a general target of OOP and (theoretically) all the three pillars of OOP, namely Encapsulation, Inheritance and Polymorphism support it. Inheritance is mainly used for code reusability. Inside a class, encapsulation conceals the underlying software code implementation and the internal data of the objects. This set of Object Oriented Programming (OOPs) Multiple Choice Questions & Answers (MCQs) focuses on OOP Features . In computer science and software engineering, reusability is the use of existing assets in some form within the software product development process; these assets are products and by-products of the software development life cycle and include code, software components, test suites, designs and documentation. 47. a) Always true for any programming language Because Java compiles as bytecode which then runs inside a Virtual machine, it cannot access the computer it runs on like a natively compiled program can. a) Encapsulation. The father, on the other hand, is right-handed, while the kid is left-handed. A class defines ingredient members that allow its instances to have position and behavior. It enables code reusability by allowing a new class. Encapsulation is intrinsically linked to modularity. Grasping OOP concepts is key to understanding how Java works. Easy explanation - Inheritance indicates the code reusability. inta public toata a) Error: same vanable name can be used twice b) Error Public must come first C) Error: data types are different for same variable d) It is correct 3. Object Oriented Programming (OOPS) Concepts in C++ Only the methods that are elements of a similar class only can access private members. OOPs Interview Questions. c) Abstraction For example, a person, it can have attributes like name, age, gender and behaviour such as talking and walking. This set of Object Oriented Programming (OOPs) using C++ Multiple Choice Questions & Answers (MCQs) focuses on OOP Features. which feature of oops described the reusability of code? Shark APEX, Quality is paramount. Write the Java code to display the content of the. In computer science and software engineering, reusability is the use of existing assets in some form within the software product development process; these assets are products and by-products of the software development life cycle and include code, software components, test suites, designs and documentation. An object represents a real-world entity, having a set of attributes and behavior. OOP is the most popular programming paradigm used for software development and is taught as the standard way to code for most of a programmer's educational career. But OOP has been very criticized for its reduced reusability. Object-Oriented programming focuses on binding attributes and behavior of a real-world entity represented using an object and supports features like abstraction, encapsulation, inheritance, and polymorphism. Modern OOP languages make usage of encapsulation convenient and natural. Answer: c. Explanation: For the feature given above, the OOP feature used is Polymorphism. a) Code reusability b) Modularity c) Duplicate/Redundant data d) Efficient Code View Answer Answer: c Explanation: Duplicate/Redundant data is dependent on programmer and hence cant be guaranteed by OOP. Individual objects are created using class templates as a blueprint. Next - Object Oriented Programming using C++ Questions and Answers - Classes. Objects contain data in the form of attributes and code in the form of methods. In the oops concept, a class is a construct that is used to describe an individual type. What is abstraction with real time example? Understanding Code Reuse and Modularity in Python 3 - tutorialspoint.com You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Explanation: Platform independence is not included in the OOPS concepts. Object-oriented programming combines a group of variables (properties) and functions (methods) into a unit called an "object." The ability to inherit the properties of one class to another, or inherit the properties from a base class to an inherited class is known as the concept of Inheritance. A user can reuse its code once written and can save space and memory of code. With this type of programming, a program comprises objects that can interact with the user, other objects, or other programs. The term object in object-oriented programming refers to a specific instance of a class. Which is not feature of OOP in general definitions? Inheritance. View Answer, 2. Of basic terms, Objects are the fundamental data types in object-oriented programming languages and are used to build object-oriented programming. Method overloading signifies a method having the same name can exhibit multiple functionalities based on its parameters. Further, object use is required, message passing is required, and finally dynamic binding is required. APIs provide a mechanism to enable code reuse. Write the Java code to display the content of the smallest number and the Largest Number. In C++ program if we implement class with private and public members then it is an example of data abstraction. 5. for Reusability .cpp file is known as a source-code file Header files Separate files in which class definitions are placed Allow compiler to recognize the classes when used elsewhere Generally have .h filename extensions Driver files Program used to test software (such as Encapsulation is achieved when each object keeps its state private, inside a class. Q2. OOPS is one of the most popular and useful programming technology. b) Inheritance The general reason why Java is considered to be more secure than, say C, is because it handles memory management for you. a) OOP (Object Oriented Programming) feature: 1. If a function can perform more than 1 type of tasks, where the function name remains same, which feature of OOP is used here? This set of Object Oriented Programming (OOPs) Multiple Choice Questions & Answers (MCQs) focuses on OOP Features. (15 marks) B5 a) Describe TWO features of object oriented programming languages that promote code reuse. Object oriented programming can be described as a programming model which is based upon the concept of objects. Kindly, choose the right option for every question to check your final preparation. Q3: What are the basic principles of OOPs?Ans: Abstraction, Encapsulation, Inheritance, and Polymorphism are the four core ideas of OOP. Create two files for each class using the C/C++ convention: a header file for the classs code (. A class is a generic template that you may use to create more specialized, concrete things. a) True These objects can contain the data (attribute) and the methods (behavior), just like real-life entities that we model into our applications. Inheritance is about code reuse, not hierarchies. Try to think more abstractly and use Interfaces and Abstract classes. You may do this by storing the second number under the same name as the first. OOPs MCQ & Online Quiz 2023 - OnlineInterviewQuestions Which reusability-related C++ OOPS feature do you use? Polymorphism As name suggests, Polymorphism means an ability to assume different forms at different places. Constructors in most object-oriented languages have the same name as the class and are public. Using the control Panel the home owner can interact with the Alarm, In a state diagram, the guard depends on the active state of the object. A single, particular bird would be an instance of the Bird class, an object of the type Bird. By significantly changing the learning process, the son was able to grasp the skill of shooting! The attributes specified in the class may have unique values for each object. In 3 simple steps you can find your personalised career roadmap in Software development for FREE, Difference Between Product and Service Based Company. Click card to see definition . b) Data Binding In OOPS, what is the minimum functionality? Conclusion. The above code represents, how a laptops attributes and its behavior are put together in a single place. Ethnicity, polymorphism, encapsulation, and abstraction are the four basic features. Polymorphism is the ability of one object to be treated and used like another object. a) code reusability b) modularity c) duplicate/redundan Get the answers you need, now! Object Oriented Programming Concepts - KnowledgeBoat A major advantage of OOP is code reusability. Encapsulation Polymorphism Inheritance Abstraction Question 39 (3 points) Write the Java code to declare an Array called "studentScoresArray" that contain scores (100, 55, 77, 22, 44, 88). Code reuse may not be exactly what people think. Explanation: The interaction between two object is called the message passing feature. We all use an ATM machine for cash withdrawal, money transfer, retrieve min-statement, etc in our daily life. 4. d) Functions Overloading Code reuse may imply the creation of a separately maintained version of the reusable assets. We use a library, saying reuse would sound dumb. Explanation: OOP does not have platform independence. Inheritance allows, code reusability and the polymorphism is, the occurrence of one function with different form. It combines a group of related attributes and behaviour within a single unit named class, that enhances program design structure and code readability. See 10 tips on writing reusable code for some help. Explanation: Firstly, keyword class should come, followed by the derived class name. (15 marks) B5 a) Describe TWO features of object oriented programming languages that promote code reuse. b. Inheritance. Most sensible languages allow writing of libraries, even C. Only we generally use the more sensible term "use". Object . Its one of the most important OOP concepts. Abstraction reveals just the most significant facts to the user while hiding the underlying intricacies. 4 Principles of Object-Oriented Programming | Khalil Stemmler It has the capability of storing your Contacts. Encapsulation and abstraction are meant to hide/group data into one element. Explanation: Inheritance is the feature of OOPS, which allows the users of OOPS to reuse the code which is already written. It provides the ability to inherit attributes and behaviours from one class to another class. Object-oriented programming (OOPs) is a programming paradigm that is based on the concept of objects rather than just functions and procedures. a. Encapsulation. Reusability in OOP achieves through the features of C++ where it possible to extend or reuse the properties of parent class or superclass or base class in a subclass and in addition to that, adding extra more features or data members in the subclass or child class or derived class.This whole set of mechanism is known as Inheritance. View the full answer. Polymorphism refers to the ability of any data to be processed in multiple ways. Inheritance is the most essential feature of Object-oriented programming. Which feature of OOPS described the reusability of code? a) 7 Using inheritance we can reuse the code already written and also can avoid creation of many new functions or variables, as that can be done one time and be reused . This concept is often used to hide the internal state representation of an object from the outside. Which OOPS concept is used as reuse mechanism? 15)ArrayList is a part of which of the following sub packages? Question 38: Answer:Inheritance Explanation: The reusability of code is possible using inheritance. Answer: The 4 basic features are inheritance, polymorphism, encapsulation and abstraction. Java OOP. Explanation: Inheritance allows you to reuse your already written code by inheriting the properties of written code into other parts of the code, hence allowing you to reuse the already written code. Reusability is a desirable feature of a language as it. Inheritance: Inheritance is an important pillar of OOP(Object-Oriented Programming). Exception Handling & Static Class Members, Assigning Object, Passing & Returning Object, Default Arguments, Upcasting & Downcasting, here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Object Oriented Programming using C++ Questions and Answers Objects, Next - Object Oriented Programming using C++ Questions and Answers Polymorphism, Certificate of Merit in Object Oriented Programming, Object Oriented Programming Certification Contest, Top Ranker in Object Oriented Programming, Object Oriented Programming using C++ Questions and Answers OOPs Basic Concepts, C++ Programming Questions and Answers OOPs Concept 1, Object Oriented System Design Questions and Answers Programming Principles, Object Oriented Programming using C++ Questions and Answers Encapsulation, Object Oriented Programming using C++ Questions and Answers Derived Class, Object Oriented Programming using C++ Questions and Answers Overriding Member Functions, Object Oriented Programming using C++ Questions and Answers Abstraction, Java Questions & Answers Concepts of OOPs, Object Oriented Programming using C++ Questions and Answers Multilevel Inheritance, Object Oriented System Design Questions and Answers Foundations of Object Model 1, Object Oriented Programming MCQ Questions, Object Oriented Programming Certification. View Answer. C. Inheritance boost the code reusability. Object Oriented Programming (OOP) is based on the concept of objects rather than actions, and data rather than logic. Object-oriented programming necessitates planning and thinking about the programs structure before starting to code and examining how to decompose the requirements into basic, reusable classes that you may utilize to create object instances.