The best explanation of Abstraction is using the common example of sending SMS. When a user send SMS, he simply enter the address, type message in the text box and send it. He doesn’t know what is happening behind the scene when this message is getting send to the other user. So her...
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(), ...
Method overloading in java Method overriding in java Encapsulation in java with example Polymorphism in java with example Inheritance in Java Can we override static method in java Dynamic method dispatch in java Can we overload main method in java Difference between early binding and late binding ...
Example: //Abstract classabstractclassAnimal {//Abstract method (does not have a body)publicabstractvoidanimalSound();//Regular methodpublicvoidsleep() {System.out.println("Zzz");} }//Subclass (inherit from Animal)classPigextendsAnimal{publicvoidanimalSound() {//The body of animalSound() is ...
Let's convert the Animal class we used in the Polymorphism chapter to an abstract class:Remember from the Inheritance chapter that we use the extends keyword to inherit from a class.ExampleGet your own Java Server // Abstract class abstract class Animal { // Abstract method (does not have ...
Example of Encapsulation in Javaclass Person { private String name; private int age; // Getter method for name public String getName() { return name; } // Setter method for name public void setName(String name) { this.name = name; } // Getter method for age public int getAge() {...
In this example,Animalis an abstract class with an abstract methodmakeSound(). TheDogclass extendsAnimaland provides an implementation formakeSound(). Thesleep()method is a concrete method in the abstract class that can be used by subclasses. ...
We don’t need to provide details about all the functions of an object. When we hide the internal implementation of the different functions involved in a user operation, it creates process abstraction. Process Abstraction 5. Abstraction in Java ...
Note: use full class name, here it was tags.RequiresDb, where “tags” is just the Java package name. Moreover, you can use a cool technique from this blog post and replace this pretty ugly incantation with simple local:test If you want a full working example, check my GitHub for one...
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"; ...