Increases the time and effort required to execute a program as it requires jumping back and forth between different classes.
For example, the vehicle class can have ‘car’, ‘bike’, etc as its subclasses. Hierarchical inheritance refers to inheritance where one base class has more than one subclasses. Hybrid inheritance is a combination of multiple and multi-level inheritance. Multilevel inheritance means a class inherits from another class which itself is a subclass of some other base classĮxample: A class defining a child inherits from two base classes Mother and FatherĮxample: A class describing a sports car will inherit from a base class Car which inturn inherits another class Vehicle Multiple inheritance comes into picture when a class inherits more than one base class What is the difference between multiple and multilevel inheritance? Multiple Inheritance What are the different types of inheritance?ġ2.
#INHERITANCE IN JAVA INTERVIEW QUESTIONS CODE#
This property helps you get rid of redundant code thereby reducing the overall size of the code. For example, if there is a class such as ‘vehicle’, other classes like ‘car’, ‘bike’, etc can inherit common properties from the vehicle class. Inheritance is a feature of OOPs which allows classes inherit common properties from other classes. OOPs Interview Questions – Inheritance 10. To know more about objects and classes in JAVA, Python, and C++ you can go through the following blogs: Objects can be declared as and when required Objects take memory space when they are createdĪ class does not take memory space when created What is the difference between a class and an object?Ī real-world entity which is an instance of a classĪ class is basically a template or a blueprint within which objects can be createdĪn object acts like a variable of the classīinds methods and data together into a single unit The base class is inherited by some other subclassĩ.Yes, you can call the base class without instantiating it if: Can you call the base class method without creating an instance? Structure: A structure is basically a user-defined collection of variables which are of different data types. It consists of methods or set of instructions that are to be performed on the objects. What is the difference between a class and a structure?Ĭlass: User-defined blueprint from which objects are created. It has a number of methods that are common the objects present within that class. What is a class?Ī class is a prototype that consists of objects in different states and with different behaviors. Different objects have different states or attributes, and behaviors.
What is an object?Īn object is a real-world entity which is the basic unit of OOPs for example chair, cat, dog, etc. To know more about OOPs in JAVA, Python, and C++ you can go through the following blogs:Ĭlasses and Objects OOPs Interview Questions and Answers 5.
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