In simple terms, abstraction “displays” only the relevant attributes of objects and “hides” the unnecessary details. For example, when we are driving a car, we are only concerned about driving the car like start/stop the car, accelerate/ break, etc. ... This is a simple example of a...
Abstraction in Java is implemented throughinterfacesandabstract classes. They are used to create a base implementation or contract for the actual implementation classes.Car.java: Base interface or abstract class package com.journaldev.oops.abstraction; public interface Car { void turnOnCar(); void tur...
public void turnOffCar() { System.out.println("turn off the manual car"); } @Override public String getCarType() { return this.carType; } } package com.journaldev.oops.abstraction; public class AutomaticCar implements Car { private String carType = "Automatic"; @Override public void turnO...
Let’s see one moreexample of abstraction in Java using interfaces. In this example, I am creating various reports which can be run on demand at any time during the application’s lifetime. As a consumer of the report, a class needs not to know the internals of the report’s run(), ...
Runtime polymorphism or dynamic method dispatch is a process in which a call to an overridden method is resolved at runtime rather than at compile-time.In this process, an overridden method is called through the reference variable of a super class. The determination of the method to be ...
2.1 Abstract Class in Java 2.2 Interface in Java 3. Abstraction example 4. Abstraction vs Encapsulation 5. Conclusion 1. Introduction Abstraction is a concept of exposing only essential details and hiding implementation details. It is one of the essential OOPs concept apart from encapsulation, inheri...
In the Rectangle and Circle classes, data (width, height, radius) is encapsulated as private fields. The internal details of how the area is calculated (implementation of CalculateArea()) are encapsulated within each class. Conclusion In this example, abstraction enables the creation of a unified...
Retail Application-Activity Consider the Retail store application: When a customer goes to purchase a television for example, what are the details given by the salesperson about the television? Characteristics of the television (model, make, color etc) Basic functioning of the television What are th...
Example:A particular model of a car ‘GTB Fiorano’ that implements the blueprint of a car realizes the abstraction. Dependency Change in structure or behaviour of a class affects the other related class, then there is a dependency between those two classes. It need not be the same vice-ver...
In this above example abstraction shows only necessary details of car or shows only necessary details to drive a car like rear view mirror, gear, clutch, steering And hides internal detail of car like Piston, crankshaft, carburetors, gas turbines etc which is encapsulation for a car ...