Java-Programs/abstractKey/Example1.java at master · divScorp/Java-Programs · GitHub

39 lines (35 loc) · 702 Bytes

package abstractKey;

/* If a class is not having any abstract method

* then it is possible to have no abstract method

* But if a class have one or more abstract method

* then class should be abstract.

* */

abstract class Car{

abstract void start();// Abstract method must be implemented

// in subclasses

}

class Audi extends Car{

@Override

void start(){

System.out.println("Audi Car ");

}

class BMW extends Car{

@Override

void start(){

System.out.println("BMW Car");

}

class Drive{

void drive(Car c) {

c.start();

}

public class Example1 {

public static void main(String[] args) {

Drive d=new Drive();

d.drive(new Audi());

d.drive(new BMW());

}

Expand file tree