![]() Once you understand these concepts, you should have the confidence and ability to develop basic problem-solving applications using object-oriented programming principles in Java. This article will help give you a thorough understanding of the underlying principles of object-oriented programming and its concepts. The keyword extends is used to display inheritance in Java.Hi, folks! Today we are going to talk about object-oriented programming in Java. Inheritance, in general, depicts the parent-child relationship in object-oriented programming, which is also called as the IS-A relationship. The class whose properties are used inherited is considered the parent or superclass. And the inheriting class is the child or subclass. The process of reusing the properties of an existing class is defined as an inheritance. In Java, encapsulation can be illustrated by making the data member of class private and declare getter and setter methods to make it accessible. The practice of combining data and operations into a single entity is defined as encapsulation. Since an interface is similar to a class, it has variables and methods(which are by default abstract).įor more detail about this topic, do read Java Program using Interface. What is the interface in Java?Īn interface, in simple words, is a draft of a class which is used to achieve abstraction. An abstract class is extended by other classes and the methods should be implemented.įor example: From the above figure, the vehicle is an abstract class which is extended by SUV, Sedan, etc. ![]() In Java, abstraction can be achieved with the help of,Ī class when declared using the keyword abstract is an abstract class in java. This is a figure to describe Abstraction explained with an example. Therefore, we can display the feature common to both and exclude characteristics that are in particular concerned with car or bus. So the general concept between them is that they are Vehicles. Although all of them have some general features, i.e., gearbox, engine, tire, steering, brakes, etc. The process of highlighting the necessary and most concerned characteristics and hiding others is known as abstraction.įor instance, we can consider different kinds of cars and bus which have different engine type, shape, and purpose which make them distinctive from each other. Principle Object Oriented Concepts in Java: This is the Diagrammatic illustration of the class’s characteristics explained with an example. And the behavior can be represented by methods like amount_withdraw, amount_deposit, account_closure. ![]() Speed, Gear, Engine temperature, Fuel levelįast, Slow, Change Of Gears, Break Down, Go Reverse, Etc.Ī class defines the structure of objects which include the state and behavior (operation).įor example: Let us consider a class named Bank_Account, whose state can be represented by variables like account_number, account_type. Model Number, Model Name, License Plate/ Vehicle Number So going further, the next question is… What is an Object?Īn object in terms of software programming is nothing but a real-world entity or an abstract concept which has an identity, state, and behavior.įor example: Let us consider a real-life entity Car. In a nutshell, Object-Oriented Programming is a simple engineering advance to build software systems which models real-world entities using classes and objects. ![]() Object-Oriented Programming is a method of programming where programmers define the type of data as well the operations that the data can perform. What is Object-Oriented Programming and Concepts? Before we start learning these concepts, let us recap a little about OOP. Object-oriented concepts come with the main features of Java programming. In each topic, we are also covering some of the basic questions about Oops concepts.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |