Oops concepts in java5/3/2023 What are SOLID Design Principles? Explain any three of them ( answer ).What is the difference between Inheritance and Polymorphism in Java? ( answer).What is the difference between Class and Object in Java or OOP? ( answer ).What is a constructor in Java? ( answer) A special construct that creates objects.What is the difference between coupling and cohesion? (answer) coupling is the dependency between different parts of code while cohesion is about the same part of code.What is the difference between Inheritance and Composition? ( answer ).What is an interface in Java? ( answer).What is an abstract class in Java? ( answer ).Why Java doesn’t support operator overloading? ( answer).What is the difference between the IS-A relationship and HAS-A? (answer) IS-A represents Inheritance and HAS-A represents composition.What is the difference between abstraction and polymorphism in Java?** ( answer).What is the difference between static and dynamic binding in Java? ( answer ).When do you use interface and abstract class in Java? (Answer).Why Java doesn’t support Multiple Inheritance in Java? ( answer ).What is the difference between Polymorphism, Overloading, and Overriding? ( answer).What is Polymorphism in Java or OOP? ( answer ) provides flexibility to choose different codes to run at runtime.What is Encapsulation or data hiding in Java? ( answer ) An oop way to hide data so that you can change it later without impacting others.What is Inheritance in Java? ( answer ) An object-oriented technique to reuse code and functionalities.What is the abstraction in Java? ( answer ) An OOP technique to hide complexities from clients.What is Object in OOP? (answer) Created from classes, represent a particular state of the class.What is Class in Object-oriented programming? (answer) A class is a blueprint to create objects.These questions have been collected from many Java interviews, both telephonic and face-bot-face from different levels of Java programmers. Without wasting any more of your time, here is my list of frequently asked Object-Oriented Programming questions for Java programmers. ![]() If you love to learn more about the OOPS design principle, read 10 OOP design principles for Java programmers.Ħ6 Java OOP Concepts Interview Question and Answers Some question is very fundamental, and some Object-oriented programming question is difficult to answer, but this mix helps to learn more. In this Java article, we will see some frequently asked OOP interview questions and answers. ![]() On Freshers and Beginners level interview, OOP Interview Questions are mostly based on fundamentals only with some tricky Java questions like Why Java doesn’t support multiple inheritances, etc. Question from OOP is also asked as part of the Java design pattern question on the Senior level Java interview. OOP, Interview question in Java is mainly based around fundamental OOPS concepts, and How those are implemented in Java, like Abstraction OOP concept is implemented using an interface and abstract class, Encapsulation is using private keyword, etc. Since Java is an Object-oriented programming language, it’s expected from Java developers that he is good in Object-oriented analysis and design and familiar with essential OOP concepts like Abstraction, Encapsulation, and Polymorphism. OOP Interview question or Object-oriented programming interview question is an integral part of any Java interview. ![]() In the past, I have shared the best OOP books and courses as well multiple Java interview questions and in this article, I am going to share 50+ object-oriented programming concept questions for you. Hello guys, if you are preparing for Java interviews and need some questions to revise Object Oriented concepts then you have come to the right place.
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