Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain Subclasses and Polymorphism ?
Car and Motorcycle are subclasses of MotorVehicle. If you instantiate a Car or a Motorcycle along with new, you can use in which object anywhere you can use a MotorVehicle, since cars are motor vehicles. As same you can use a Motorcycle anywhere you can use a MotorVehicle. This use of a subclass object in place of a superclass object is the starting of polymorphism. I'll say more about polymorphism later.
The converse is not true. While all cars are motor vehicles, not all motor vehicles are cars. A few are motorcycles. Thus if a method expects a Car object you shouldn't provides it a MotorVehicle object instead.
Remember that I said you shouldn't provide a method in which expects a Car a MotorVehicle. I didn't say you couldn't. Objects can be cast into their subclasses. This is useful while using data structures like Vectors that only handle generic objects. It's up to the programmer to remain track of what kind of object is stored in a Vector, and to use it accordingly.
The proper choice of classes and subclasses is a skill learned primarily by experience. There are often different ways to define classes.toString() as example of polymorphism
Who Can an Applet Talk To? By default an applet can just open network connections to the system from that the applet was downloaded. This system is known as the codebase. An ap
can i have code on this assignment: The code in the main method should do the following: 1. Prompt the user for a string input value for the amount in dollars and store it in a va
Java developer with spring framework needed I need an experienced person in java with spring frame work. Desired Skills are Java
Project Description: I need Team speak 3 client for Nokia Symbian platform. Project for Nokia E72, but should work on all Java/Symbian mobiles. Feature list should include
A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindrome
How to write a program that converts US dollars into Canadian dollars.The program let the user enter an amount in US dollars and display it equivalent value in Canadian dollars whe
i m working on an accounting software and need the java code for preparing trial balance report
short Java application that stores words in an Array or ArrayList.
A joinpoint is a point in the implementation of the application where an aspect can be plugged in. This point could be a method being called, an exception being thrown, or even a f
Explain Drawing Rectangles in java ? Drawing rectangles is easy. Begin with a Graphics object g and call its drawRect() method: public void drawRect(int x, int y, int width, i
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd